0001794515-21-000061 | 10-K | XBRL Viewer | Zoominfo Technologies INC

Revenue from Contract with Customer [Abstract]

^[2]

$ (0.11)

[1]

Amounts include equity-based compensation expense, as follows:


	Year Ended December 31,
($ in millions)	2020		2019		2018
Cost of service	$	27.4	$	4.0	$	8.3
Sales and marketing	62.6		11.2		15.8
Research and development	13.6		4.7		1.1
General and administrative	18.0		5.2		7.5
Total equity-based compensation expense	$	121.6	$	25.1	$	32.7

[2]

Basic and diluted net income (loss) per share of Class A and Class C common stock is applicable only for the period from June 4, 2020 through December 31, 2020, which is the period following the initial public offering ("IPO") and related Reorganization Transactions (as defined in Note 1 to the Consolidated Financial Statements). See Note 14 for the number of shares used in the computation of net income (loss) per share of Class A and Class C common stock and the basis for the computation of net income (loss) per share.

Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Total equity-based compensation expense	$ 121.6	$ 25.1	$ 32.7
Cost of service
Total equity-based compensation expense	27.4	4.0	8.3
Sales and marketing
Total equity-based compensation expense	62.6	11.2	15.8
Research and development
Total equity-based compensation expense	13.6	4.7	1.1
General and administrative
Total equity-based compensation expense	$ 18.0	$ 5.2	$ 7.5

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (36.4)	$ (78.0)	$ (28.6)
Other comprehensive income (loss), net of tax:
Unrealized gain (loss) on cash flow hedges	(10.6)	(6.0)	0.0
Realized loss (gain) on settlement of cash flow hedges	6.2	0.0	0.0
Amortization of deferred losses related to the dedesignated Interest Rate Swap	3.3	0.0	0.0
Other comprehensive income (loss), before tax	(1.1)	(6.0)	0.0
Tax effect	(0.8)	0.0	0.0
Other comprehensive income (loss), net of tax	(1.9)	(6.0)	0.0
Comprehensive income (loss)	(38.3)	(84.0)	(28.6)
Less: Comprehensive income attributable to ZoomInfo OpCo prior to the Reorganization Transactions	(12.8)	(84.0)	(28.6)
Less: Comprehensive income (loss) attributable to noncontrolling interests	(23.4)	0.0	0.0
Comprehensive income (loss) attributable to ZoomInfo Technologies Inc.	$ (2.1)	$ 0.0	$ 0.0

Consolidated Statements of Changes in Equity (Deficit) - USD ($) $ in Millions	Total	Class A Shares	Class B Shares	Class C Shares	Common Stock Class A Shares	Common Stock Class B Shares	Common Stock Class C Shares	Additional paid-in capital	Retained Earnings	AOCI	Noncontrolling interests	Pre-Acquisition ZI	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjustment Retained Earnings
Beginning balance, Members' Deficit at Dec. 31, 2017	$ (29.8)								$ (29.8)	$ 0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) prior to Reorganization Transactions	(28.6)								(28.6)
Net income (loss)	(28.6)
Equity-based compensation	32.7								32.7
Member distributions	(93.4)								(93.4)
Other comprehensive income (loss)	0.0
Ending balance, Members' Deficit at Dec. 31, 2018	$ (119.1)								(119.1)	0.0			$ (1.8)	$ (1.8)
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) prior to Reorganization Transactions	$ (78.0)								(78.0)
Net income (loss)	(78.0)
Equity-based compensation	25.1								25.1
Member distributions	(16.5)								(16.5)
Cash paid for unit repurchases	(11.9)								(11.9)
Accrued unit repurchases	(5.6)								(5.6)
Other comprehensive income (loss)	(6.0)								0.0	(6.0)
Ending balance, Members' Deficit at Dec. 31, 2019	(213.8)								(207.8)	(6.0)		$ (207.8)
Ending balance, Stockholders' Equity (in shares) at Dec. 31, 2019		0	0	0	0	0	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) prior to Reorganization Transactions	(5.1)											(5.1)
Net income (loss)	(36.4)
Other comprehensive loss prior to Reorganization Transactions and IPO	(7.7)									(7.7)
Member distributions	(6.8)											(6.8)
Equity-based compensation prior to Reorganization Transactions	15.8											15.8
Initial effect of the Reorganization Transactions and IPO on noncontrolling interests (in shares)						242,414,027	98,381,656
Initial effect of the Reorganization Transactions and IPO on noncontrolling interests						$ 2.4	$ 1.0	$ (628.1)		8.4	$ 412.4	203.9
Issuance of Class A common stock in IPO, net of costs (in shares)					48,528,783
Issuance of Class A common stock in IPO, net of costs	1,016.6				$ 0.5			1,016.1
Purchases of ZoomInfo OpCo units in connection with IPO (in shares)					2,370,948	(2,370,948)
Purchases of ZoomInfo OpCo units in connection with IPO	(47.2)							(47.2)
Purchases of Class C units in connection with IPO (in shares)					275,269		(275,269)
Purchases of Class C units in connection with IPO	(5.5)							(5.5)
Exchanges (in shares)					36,509,748	(23,341,829)	(11,983,157)
Exchanges	202.3				$ 0.4	$ (0.2)	$ (0.1)	199.8		1.0	1.4
Issuance of Class A common stock upon vesting of RSUs (in shares)					25,868
Issuance of Class A common stock upon vesting of RSUs	0.0
Issuance of Class A common stock from business combinations (in shares)					67,075
Issuance of Class A common stock from business combinations	2.9							2.9
Shares withheld related to net share settlement and other (in shares)					(20,617)
Shares withheld related to net share settlement and other	(1.0)							(1.0)
Forfeitures / cancellations (in shares)					(59,693)	(48,546)
Forfeitures / cancellations	0.0
Series A Preferred Unit redemption accretion	(74.0)							(74.0)
Net income subsequent to Reorganization Transactions	(31.3)								(4.0)		(27.3)
Other comprehensive loss subsequent to Reorganization Transactions and IPO	5.8									1.9	3.9
Equity-based compensation subsequent to Reorganization Transactions	105.8							42.2			63.6
Paid and accrued tax distributions	(17.2)										(17.2)
Other comprehensive income (loss)	(1.9)
Ending balance, Members' Deficit at Dec. 31, 2020												$ 0.0
Ending balance, Stockholders' Equity (in shares) at Dec. 31, 2020		87,697,381	216,652,704	86,123,230	87,697,381	216,652,704	86,123,230
Ending balance, Stockholders' Equity at Dec. 31, 2020	$ 939.6				$ 0.9	$ 2.2	$ 0.9	$ 505.2	$ (4.0)	$ (2.4)	$ 436.8

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Net income (loss)	$ (36.4)	$ (78.0)	$ (28.6)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	50.8	48.7	17.3
Amortization of debt discounts and issuance costs	3.9	4.9	1.8
Amortization of deferred commissions costs	25.1	9.2	1.5
Asset impairments	0.0	1.1	0.0
Loss early on extinguishment of debt	14.9	9.4	0.0
Deferred consideration valuation adjustments	1.3	1.8	0.0
Equity-based compensation expense	121.6	25.1	32.7
Deferred income taxes	(1.8)	(7.2)	(3.0)
Tax receivable agreement remeasurement	(15.7)	0.0	0.0
Paid-in-kind (PIK) accrued interest	0.0	0.0	16.4
Provision for bad debt expense	1.4	0.8	0.6
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(32.9)	(34.5)	(8.9)
Prepaid expenses and other current assets	(5.9)	(2.4)	0.9
Deferred costs and other assets	(40.0)	(27.8)	(3.3)
Income tax receivable	1.5	(1.9)	1.9
Accounts payable	(0.2)	5.1	(0.3)
Accrued expenses and other liabilities	21.9	18.2	(0.2)
Unearned revenue	60.1	71.9	15.0
Net cash provided by (used in) operating activities	169.6	44.4	43.8
Cash flows from investing activities:
Purchases of short-term investments	(30.6)	0.0	0.0
Purchases of property and equipment and other assets	(16.8)	(13.6)	(4.6)
Cash paid for acquisitions, net of cash acquired	(65.9)	(723.1)	(8.5)
Net cash provided by (used in) investing activities	(113.3)	(736.7)	(13.1)
Cash flows from financing activities:
Payments of deferred consideration	(24.7)	(0.3)	0.0
Proceeds from debt issuances	35.0	1,220.8	67.3
Payments of debt issuance costs	(1.0)	(16.7)	(0.1)
Repayment of debt	(510.9)	(649.8)	(3.7)
Repurchase outstanding equity / member units	(332.4)	(11.9)	0.0
Taxes paid related to net share settlement of equity awards	(0.4)	0.0	0.0
Proceeds from equity offering, net of underwriting discounts	1,023.7	200.2	0.0
Payments of IPO issuance costs	(7.2)	0.0	0.0
Tax distributions	(9.9)	(16.5)	(93.4)
Net cash provided by (used in) financing activities	172.2	725.8	(29.9)
Net increase (decrease) in cash, cash equivalents, and restricted cash	228.5	33.5	0.8
Cash, cash equivalents, and restricted cash at beginning of year	42.5	9.0	8.2
Cash, cash equivalents, and restricted cash at end of year	271.0	42.5	9.0
Supplemental disclosures of cash flow information
Interest paid in cash:	66.5	95.0	40.2
Cash paid for taxes	1.9	0.0	0.0
Supplemental disclosures of non-cash investing and financing activities:
Deferred variable consideration from acquisition of a business	0.0	33.4	1.1
Accrued unit repurchases	$ 0.0	$ 5.6	$ 0.0

Organization and Background	12 Months Ended
Organization and Background	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Background	Note 1 - Organization and Background Business ZoomInfo Technologies Inc., through its operating subsidiaries, provides a go-to-market intelligence platform for sales and marketing teams. The Company’s cloud-based platform provides accurate and comprehensive information on organizations and professionals to help users identify target customers and decision makers, obtain continually updated predictive lead and company scoring, monitor buying signals and other attributes of target companies, craft messages, engage via automated sales tools, and track progress through the deal cycle. Unless otherwise indicated or the context otherwise requires, references to “we,” “us,” “our,” “ZoomInfo,” and the “Company” refer (1) prior to the consummation of the Reorganization Transactions, to ZoomInfo OpCo and its consolidated subsidiaries, and (2) after the consummation of the Reorganization Transactions, to ZoomInfo Technologies Inc. and its consolidated subsidiaries. Organization ZoomInfo Technologies Inc. was formed on November 14, 2019 with no operating assets or operations as a Delaware corporation for the purposes of facilitating an initial public offering (“IPO”) and other related transactions in order to carry on the business of ZoomInfo Holdings LLC (“ZoomInfo OpCo”) (formerly known as DiscoverOrg Holdings, LLC), a Delaware limited liability company. Following consummation of the Reorganization Transactions (as described below), ZoomInfo OpCo became a direct subsidiary of ZoomInfo Intermediate Holdings LLC (“ZoomInfo HoldCo”), a Delaware limited liability company and an indirect subsidiary of ZoomInfo Technologies Inc. The Company headquarters are located in Vancouver, WA, and we operate in eight offices throughout the U.S. and one office in Israel. Initial Public Offering On June 8, 2020, ZoomInfo Technologies Inc. completed the IPO, in which it sold 51,175,000 shares of Class A common stock (including shares issued pursuant to the exercise in full of the underwriters’ option to purchase additional shares) at a public offering price of $21.00 per share for net proceeds of $1,019.6 million, after deducting underwriters’ discounts (but excluding other offering expenses and reimbursements). ZoomInfo Technologies Inc. used all of the proceeds from the IPO to (i) purchase 48,528,783 newly issued HoldCo Units from ZoomInfo HoldCo for approximately $966.9 million (which ZoomInfo HoldCo in turn used to purchase the same number of newly issued OpCo Units from ZoomInfo OpCo); (ii) purchase 2,370,948 OpCo Units from certain Pre-IPO OpCo Unitholders for approximately $47.2 million; and (iii) fund $5.5 million of merger consideration payable to certain Pre-IPO Blocker Holders in connection with the Blocker Mergers (as defined below). Reorganization Transactions In connection with the IPO, the Company completed the following transactions (“Reorganization Transactions”): •ZoomInfo OpCo effected a four—for—one reverse unit split; •ZoomInfo Technologies Inc. formed a new merger subsidiary with respect to each of the Blocker Companies through which certain of our Pre-IPO Blocker Holders held their interests in ZoomInfo OpCo, each merger subsidiary merged with and into the respective Blocker Companies in reverse-subsidiary mergers, and the surviving entities merged with and into ZoomInfo Technologies Inc. (such mergers, the “Blocker Mergers”), which Blocker Mergers resulted in the Pre-IPO Blocker Holders receiving a combination of (i) shares of Class C common stock of ZoomInfo Technologies Inc. and (ii) a cash amount in respect of reductions in such Pre-IPO Blocker Holders’ equity interests, based on the initial offering price of the Class A common stock in the IPO; •certain Pre-IPO Owners acquired interests in ZoomInfo HoldCo as a result of the merger of an entity that held OpCo Units on behalf of such Pre-IPO Owners into ZoomInfo HoldCo (the “ZoomInfo HoldCo Contributions”) and the redemption of some OpCo Units pursuant to which the holders of such OpCo Units received HoldCo Units; and •the limited liability company agreement of each of ZoomInfo OpCo and ZoomInfo HoldCo was amended and restated to, among other things, modify their capital structure by reclassifying the interests held by the Pre-IPO OpCo Unitholders, the Continuing Class P Unitholders, and the Pre-IPO HoldCo Unitholders, resulting in OpCo Units of ZoomInfo OpCo, Class P Units of ZoomInfo OpCo, and HoldCo Units of ZoomInfo HoldCo, respectively (such reclassification, the “Reclassification”). We refer to the Reclassification, together with the Blocker Mergers and the ZoomInfo HoldCo Contributions, as the “Reorganization Transactions.” Following the Reorganization Transactions, ZoomInfo Technologies Inc. became a holding company, with its sole material asset being a controlling equity interest in ZoomInfo HoldCo, which became a holding company with its sole material asset being a controlling equity interest in ZoomInfo OpCo. ZoomInfo Technologies Inc. will operate and control all of the business and affairs, and consolidate the financial results, of ZoomInfo OpCo through ZoomInfo HoldCo and, through ZoomInfo OpCo and its subsidiaries, conduct our business. Accordingly, ZoomInfo Technologies Inc. consolidates the financial results of ZoomInfo HoldCo, and therefore ZoomInfo OpCo, and reports the non-controlling interests of the Pre-IPO HoldCo Units and Pre-IPO OpCo Units on its consolidated financial statements. As of December 31, 2020, ZoomInfo Technologies Inc. owned 98% of the outstanding HoldCo Units, and ZoomInfo HoldCo owned 45% of the outstanding OpCo Units. In connection with the Reorganization Transactions and the IPO, ZoomInfo Technologies Inc. entered into two tax receivable agreements. See Note 18.

Basis of Presentation and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	Note 2 - Basis of Presentation and Summary of Significant Accounting Policies Accounting Principles Our consolidated financial statements and accompanying notes are prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). Use of Estimates The preparation of consolidated financial statements in conformity with U.S. GAAP requires us to make certain estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the consolidated financial statements, as well as the reported amounts of revenue and expenses during the reporting period. These estimates relate to, but are not limited to, revenue recognition, allowance for doubtful accounts, contingencies, valuation and useful lives of long-lived assets, fair value of tangible and intangible assets acquired in business combinations, equity-based compensation, and income taxes, among other things. We base these estimates on historical and anticipated results, trends, and other assumptions with respect to future events that we believe are reasonable and evaluate our estimates on an ongoing basis. Given that estimates and judgments are required, actual results may differ from our estimates and such differences could be material to our consolidated financial position and results of operations. Principles of Consolidation The consolidated financial statements include the accounts of ZoomInfo Technologies Inc. and its subsidiaries that it controls due to ownership of a majority voting interest or pursuant to variable interest entity (“VIE”) accounting guidance. All intercompany transactions and balances have been eliminated in consolidation. ZoomInfo Technologies Inc., through our intermediate holding company ZoomInfo HoldCo, owns a minority economic interest in, but operates and has the power to control all of the businesses and affairs of, ZoomInfo OpCo. ZoomInfo Technologies Inc. has the obligation to absorb losses of, and receive benefits from, ZoomInfo OpCo, that could be significant. We determined that, as a result of the Reorganization Transactions described above, ZoomInfo OpCo is a VIE. Further, ZoomInfo Technologies Inc. has no contractual requirement to provide financial support to ZoomInfo OpCo and, for the year ended December 31, 2020, ZoomInfo Technologies Inc. did not provide support to ZoomInfo OpCo it was not contractually required to provide. Accordingly, ZoomInfo Technologies Inc. is considered the primary beneficiary and consolidates ZoomInfo OpCo in the Company’s consolidated financial statements. The Reorganization Transactions were accounted for consistent with a combination of entities under common control. As a result, the financial reports filed with the SEC by the Company subsequent to the Reorganization Transactions are prepared “as if” ZoomInfo OpCo is the accounting predecessor of the Company. The historical operations of ZoomInfo OpCo are deemed to be those of the Company. Thus, the financial statements included in this report reflect (i) the historical operating results of ZoomInfo OpCo prior to the Reorganization Transactions; (ii) the consolidated results of ZoomInfo Technologies Inc. and ZoomInfo OpCo following the Reorganization Transactions; (iii) the assets and liabilities of ZoomInfo OpCo and ZoomInfo Technologies Inc. at their historical cost; and (iv) ZoomInfo Technologies Inc. equity structure for all periods presented. No step-up basis of intangible assets or goodwill was recorded. ZoomInfo OpCo has been determined to be our predecessor for accounting purposes and, accordingly, the consolidated financial statements for periods prior the Reorganization Transactions have been adjusted to combine the previously separate entities for presentation purposes. The Company’s financial position, performance and cash flows effectively represent those of ZoomInfo OpCo as of and for all periods presented. Revenue Recognition The company derives revenue primarily from subscription services. Our subscription services consist of our SaaS applications and related access to our databases. Subscription contracts are generally based on the number of users that access our applications, the level of functionality that they can access, and the amount of data that a customer integrates with their systems. Our subscriptions contracts typically have a term of 1 to 3 years and are non-cancellable. We typically bill for services annually, semi-annually, or quarterly in advance of delivery. The Company accounts for revenue contracts with customers through the following steps: (1)identify the contract with a customer; (2)identify the performance obligations in the contract; (3)determine the transaction price; (4)allocate the transaction price; and (5)recognize revenue when or as the Company satisfies a performance obligation. We recognize revenue for subscription contracts on a ratable basis over the contract term based on the number of calendar days in each period, beginning on the date that our service is made available to the customer. Unearned revenue results from revenue amounts billed to customers in advance or cash received from customers in advance of the satisfaction of performance obligations. Determining the transaction price often involves judgments and estimates that can have a significant impact on the timing and amount of revenue reported. At times, the Company may adjust billing under a contract based on the addition of services or other circumstances, which are accounted for as variable consideration. The Company estimates these amounts based on historical experience and reduces revenue recognized. Cash, Cash Equivalents, and Short-term Investments Cash equivalents consist of highly liquid marketable debt securities with remaining maturities of three months or less at the date of purchase. We classify our investments in marketable securities as “available-for-sale.” We carry these investments at fair value, based on quoted market prices or other readily available market information. Unrealized gains and losses, net of taxes, are included in accumulated other comprehensive income, which is reflected as a separate component of stockholders’ equity in our Consolidated Balance Sheets. Gains and losses are determined using the specific identification method and recognized when realized in our Consolidated Statements of Operations. If we were to determine that an other-than-temporary decline in fair value has occurred, the amount of the decline related to a credit loss will be recognized in income. Fair Value Measurements The Company measures assets and liabilities at fair value based on an expected exit price, which represents the amount that would be received on the sale of an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value may be based on assumptions that market participants would use in pricing an asset or liability. The authoritative guidance on fair value measurements establishes a consistent framework for measuring fair value on either a recurring or nonrecurring basis whereby inputs, used in valuation techniques, are assigned a hierarchical level. The following are the hierarchical levels of inputs to measure fair value: Level 1 - Observable inputs that reflect unadjusted quoted prices in active markets for identical assets or liabilities Level 2 - Other inputs that are directly or indirectly observable in the marketplace Level 3 - Unobservable inputs that are supported by little or no market activity, including the Company’s own assumptions in determining fair value The inputs or methodology used for valuing financial assets and liabilities are not necessarily an indication of the risk associated with investing in them. Concentrations of Credit Risk and Significant Customers Financial instruments that potentially subject us to concentrations of credit risk consist principally of cash and cash equivalents, short-term investments, and accounts receivable. The Company holds cash at major financial institutions that often exceed Federal Deposit Insurance Corporation (“FDIC”) insured limits. The Company manages its credit risk associated with cash concentrations by concentrating its cash deposits in high-quality financial institutions and by periodically evaluating the credit quality of the primary financial institutions holding such deposits. The carrying value of cash approximates fair value. Our investment portfolio is comprised of highly rated securities with a weighted-average maturity of less than 12 months in accordance with our investment policy which seeks to preserve principal and maintain a high degree of liquidity. Historically, the Company has not experienced any losses due to such cash concentrations. The Company does not have any off-balance-sheet credit exposure related to its customers. Concentrations of credit risk with respect to accounts receivable and revenue are limited due to a large, diverse customer base. We do not require collateral from clients. We maintain an allowance for doubtful accounts based upon the expected collectability of accounts receivable. The Company performs ongoing credit evaluations of its customers and maintains allowances for possible losses, which, when realized, have been within the range of management’s expectations. Accounts Receivable and Contract Assets Accounts receivable is comprised of invoices of revenue, net of allowance for doubtful accounts and does not bear interest. We consider receivables past due based on the contractual payment terms. Management’s evaluation of the adequacy of the allowance for doubtful accounts considers historical collection experience, changes in customer payment profiles, the aging of receivable balances, as well as current economic conditions, all of which may impact a customer’s ability to pay. Account balances are written-off against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote. The Company does not have significant bad debt experience with customers, and therefore, the allowance for doubtful accounts is immaterial as of December 31, 2020 and December 31, 2019. No single customer accounted for 10% or more of our revenue for the years ended December 31, 2020, 2019, and 2018 or accounted for more than 10% of accounts receivable as of December 31, 2020 and December 31, 2019. The assessment of variable consideration to be constrained is based on estimates, and actual consideration may vary from current estimates. As adjustments to these estimates become necessary, they are reported in earnings in the periods in which they become known. Changes in variable consideration are recorded as a component of net revenue. Contract assets represent a contractual right to consideration in the future. Contract assets are generated when contractual billing schedules differ from revenue recognition timing. Property and Equipment, Net Property and equipment is stated at cost, net of accumulated depreciation and amortization. All repairs and maintenance costs are expensed as incurred. Depreciation and amortization costs are expensed on a straight-line basis over the lesser of the estimated useful life of the asset or the remainder of the lease term for leasehold improvements. Qualifying internal use software costs incurred during the application development stage, which consist primarily of internal product development costs, outside services, and purchased software license costs, are capitalized and amortized over the estimated useful life of the asset. Estimated useful lives range from 3 years to 10 years. Deferred Commissions Certain sales commissions earned by our sales force are considered incremental and recoverable costs of obtaining a contract with a customer. These sales commissions for initial contracts are capitalized and current amounts are included in Deferred costs and noncurrent amounts are included in Deferred costs, net of current portion in our Consolidated Balance Sheets. Deferred sales commissions are amortized on a straight-line basis over the estimated period of benefit from the customer relationship which we have determined to be 1 and 3 years for renewals and new clients, respectively. We determined the period of benefit by taking into consideration our customer contracts, our technology, and other factors. Amortization expense is included in Sales and marketing expense on the Consolidated Statements of Operations. Commissions payable at December 31, 2020 were $25.6 million, of which the current portion of $23.3 million was included in Accrued expenses and other current liabilities in our Consolidated Balance Sheets, and the long-term portion of $2.3 million was included in Other long-term liabilities in our Consolidated Balance Sheets. The current portion of commissions payable included in Accrued expenses and other current liabilities in our Consolidated Balance Sheets at December 31, 2019 was $9.4 million, and the long-term portion was immaterial. Certain commissions are not capitalized as they do not represent incremental costs of obtaining a contract. Such commissions are expensed as incurred. The Company capitalized $44.9 million and $25.3 million of costs to obtain revenue contracts and amortized $25.1 million and $8.6 million to sales and marketing expense for the years ended December 31, 2020 and 2019, respectively. Costs capitalized to obtain a revenue contract, net on the Company's consolidated balance sheets totaled $40.3 million and $20.5 million at December 31, 2020 and 2019, respectively. There were no impairments of costs to obtain revenue contracts in the years ended December 31, 2020 and 2019. Advertising and Promotional Expenses The Company expenses advertising costs as incurred. Advertising expenses of $13.2 million, $9.8 million, and $2.5 million were recorded for the years ended December 31, 2020, 2019, and 2018. Advertising expenses are included in Sales and marketing expenses on the Consolidated Statements of Operations. Research and Development Research and development expenses consist primarily of compensation expense for our employees, including employee benefits, certain IT program expenses, facilities and related overhead costs. We continue to focus our research and development efforts on developing new products, adding new features and services, integrating acquired technologies, and increasing functionality. Expenditures for software developed or obtained for internal use are capitalized and amortized over a four-year period on a straight-line basis. Restructuring and Transaction-Related Expenses The Company defines restructuring and transaction related expenses as costs directly associated with acquisition or disposal activities. Such costs include employee severance and termination benefits, contract termination fees and penalties, and other exit or disposal costs. In general, the Company records involuntary employee-related exit and disposal costs when there is a substantive plan for employee severance and related costs that are probable and estimable. For one-time termination benefits for key members of management (i.e., no substantive plan), transaction related bonuses and employee retention costs, expense is recorded when the employees are entitled to receive such benefits and the amount can be reasonably estimated. Contract termination fees and penalties and other exit and disposal costs are generally recorded when incurred. Business Combinations We allocate purchase consideration to the tangible assets acquired, liabilities assumed and intangible assets acquired based on their estimated fair values. The purchase price is determined based on the fair value of the assets transferred, liabilities assumed and equity interests issued, after considering any transactions that are separate from the business combination. The fair value of equity issued as part of a business combination is determined based on grant date stock price of the Company. The excess of fair value of purchase consideration over the fair values of the identifiable assets and liabilities is recorded as goodwill. Such valuations require management to make significant estimates and assumptions, especially with respect to intangible assets and contingent liabilities. Significant estimates in valuing certain intangible assets include, but are not limited to, future expected cash flows from acquired customer bases, acquired technology and acquired trade names, useful lives, royalty rates, and discount rates. The estimates are inherently uncertain and subject to revision as additional information is obtained during the measurement period for an acquisition, which may last up to one year from the acquisition date. During the measurement period, we may record adjustments to the fair value of tangible and intangible assets acquired and liabilities assumed, with a corresponding offset to goodwill. After the conclusion of the measurement period or the final determination of the fair value of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded to earnings. In addition, uncertain tax positions and tax-related valuation allowances assumed in connection with a business combination are initially estimated as of the acquisition date. We reevaluate these items based upon the facts and circumstances that existed as of the acquisition date, with any revisions to our preliminary estimates being recorded to goodwill, provided that the timing is within the measurement period. Subsequent to the measurement period, changes to uncertain tax positions and tax-related valuation allowances will be recorded to earnings. Goodwill and Acquired Intangible Assets Goodwill is calculated as the excess of the purchase consideration paid in a business combination over the fair value of the assets acquired less liabilities assumed. Goodwill is not amortized and is tested for impairment at least annually or when events and circumstances indicate that fair value of a reporting unit may be below its carrying value. The company has one reporting unit. We first assess qualitative factors to evaluate whether it is more likely than not that the fair value of a reporting unit is less than the carrying amount or elect to bypass such assessment. If it is determined that it is more likely than not that the fair value of the reporting unit is less than its carrying value, or we elect to bypass the qualitative assessment, we perform a quantitative test by determining the fair value of the reporting unit. If the carrying value of the reporting unit exceeds the fair value, then an impairment loss is recognized for the difference. Acquired technology, customer lists, trade names or brand portfolios, and other intangible assets are related to previous acquisitions (see Note 7). Acquired intangible assets are amortized on a straight-line basis over the estimated period over which we expect to realize economic value related to the intangible asset. The amortization periods range from 2 years to 15 years. Any costs incurred to renew or extend the life of an intangible or long-lived asset are reviewed for capitalization. Indefinite-lived intangible assets consist primarily of brand portfolios acquired from Pre-Acquisition ZI and represent costs paid to legally register phrases and graphic designs that identify and distinguish products sold by the Company. Brand portfolios are not amortized, rather potential impairment is considered on an annual basis in the fourth quarter, or more frequently upon the occurrence of a triggering event, when circumstances indicate that the book value of trademarks are greater than their fair value. The Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of the indefinite-lived intangible asset is less than the carrying value as a basis to determine whether further impairment testing is necessary. No impairment charges relating to acquired goodwill or indefinite lived intangible assets were recorded for the years ended December 31, 2020, 2019, or 2018. Impairment of Long-lived Assets Long-lived assets, such as property and equipment and acquired intangible assets, are reviewed for impairment whenever events or circumstances indicate that the carrying value of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to the undiscounted future cash flows expected to be generated by the asset or group of assets. If the carrying amount of the asset exceeds the estimated future cash flows, an impairment charge is recognized in the amount by which the carrying amount of the asset exceeds the estimated future cash flows of the asset. During the year ended December 31, 2019, we recorded an impairment charge of $1.1 million relating to the impairment of a right-of-use asset acquired in the Pre-Acquisition ZI acquisition. No impairment charges were recorded for the years ended December 31, 2020 or 2018. Leases We determine if an arrangement is or contains a lease at contract inception. Determining if a contract contains a lease requires judgement. In certain of our lease arrangements, primarily those related to our data center arrangements, judgment is required in determining if a contract contains a lease. For these arrangements, there is judgment in evaluating if the arrangement involves an identified asset that is physically distinct or whether we have the right to substantially all of the capacity of an identified asset that is not physically distinct. In arrangements that involve an identified asset, there is also judgment in evaluating if we have the right to direct the use of that asset. We do not have any finance leases. Operating leases are recorded in our Consolidated Balance Sheets. Right-of-use assets and lease liabilities are measured at the lease commencement date based on the present value of the fixed minimum remaining lease payments over the lease term, determined using the discount rate for the lease at the commencement date. Because the rate implicit in our leases is not readily determinable, we use our incremental borrowing rate as the discount rate, which approximates the interest rate at which we could borrow on a collateralized basis with similar terms and payments and in similar economic environments. Some leases include options to extend or options to terminate the lease prior to the stated lease expiration. Optional periods to extend a lease, including by not exercising a termination option, are included in the lease term when it is reasonably certain that the option will be exercised (or not exercised in the case of termination options). Operating lease expense is recognized on a straight-line basis over the lease term. We account for lease and non-lease components, principally common area maintenance for our facilities leases, as a single lease component. Short term leases, defined as leases having an original lease term less than or equal to one year, are excluded from our right-of-use assets and liabilities. Unearned Revenue Unearned revenue consists of customer payments and billings in advance of revenue being recognized from our subscription services. Unearned revenue that is anticipated to be recognized within the next 12 months is recorded as Unearned revenue, current portion and the remaining portion is included in Unearned revenue, net of current portion in our consolidated balance sheets. Debt Issuance Costs Costs incurred in connection with the issuance of long-term debt are deferred and amortized as interest expense over the terms of the related debt using the effective interest method for term debt and on a straight-line basis for revolving debt. To the extent that the debt is outstanding, these amounts are reflected in the consolidated balance sheets as direct deductions from a combination of current and long-term portions of debt. Upon a refinancing or amendment, previously-capitalized debt issuance costs are expensed and included in loss on extinguishment of debt, if the Company determines that there has been a substantial modification of the related debt. If the Company determines that there has not been a substantial modification of the related debt, any previously-capitalized debt issuance costs are amortized as interest expense over the term of the new debt instrument. The company performs assessments of debt modifications at a lender-specific level for all syndicated financing arrangements. Tax Receivable Agreements In connection with our IPO, we entered into two Tax Receivable Agreements ("TRAs") with certain non-controlling interest owners (the “TRA Holders”). The TRAs generally provide for payment by the Company to the TRA Holders of 85% of the net cash savings, if any, in U.S. federal, state and local income tax or franchise tax that the Company actually realizes or is deemed to realize in certain circumstances. The Company will retain the benefit of the remaining 15% of these net cash savings. Amounts payable under the TRA are accrued by a charge to income when it is probable that a liability has been incurred and the amount is estimable. TRA related liabilities are classified as current or noncurrent based on the expected date of payment and are included in the Company’s Consolidated Balance Sheets under the captions Current portion of tax receivable agreements liability and Tax receivable agreements liability, net of current portion, respectively. Subsequent changes to the measurement of the TRA liability are recognized in the statements of income as a component of other income (expense), net. See Note 18 for further details on the TRA liability. Income Taxes ZoomInfo Technologies Inc. is a corporation and is subject to U.S. federal as well as state income tax related to its ownership percentage in ZoomInfo Holdings LLC. ZoomInfo Holdings LLC is a limited liability company treated as a partnership for U.S. federal income tax purposes and files a U.S. Return of Partnership Income. Consequently, the members of ZoomInfo Holdings are taxed individually on their share of earnings for U.S. federal and state income tax purposes. However, ZoomInfo Holdings is subject to the Texas Margins Tax. Additionally, our operations in Israel are subject to local country income taxes. See Note 19 for additional information regarding income taxes. Deferred taxes are recorded using the asset and liability method, whereby tax assets and liabilities are determined based on the differences between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. We regularly evaluate the valuation allowances established for deferred tax assets for which future realization is uncertain. In assessing the realizability of deferred tax assets, we consider both positive and negative evidence, including scheduled reversals of deferred tax assets and liabilities, projected future taxable income, tax planning strategies and results of recent operations. If, based on the weight of available evidence, it is more likely than not that the deferred tax assets will not be realized, a valuation allowance is recorded. Equity-Based Compensation Expense The Company periodically grants incentive units to employees and non-employees, which generally vest over a four-year period. Incentive units may be in the form of various equity-based awards such as restricted stock and restricted stock units, Class A stock options, and awards in one of the Company’s subsidiary partnerships which are typically in the form of profits interests. Profits interests are an interest in the increase in the value of the entity over a participation threshold. Prior to the IPO, the participation threshold was based on the valuation determined by the Board of Managers of OpCo Units on or around the grant date. Subsequent to the IPO, the participation threshold is determined by reference to the closing price of our Class A Common Stock from the preceding trading day. The holders of profits interests have the right to participate in distributions of profits only in excess of the participation threshold. Compensation expense for incentive units is measured at the estimated fair value of the incentive units and is included as compensation expense over the vesting period during which an employee provides service in exchange for the award. The Company uses a Black-Scholes option pricing model to determine the fair value of stock options and profits interests, as profits interests have certain economic similarities to options. The Black-Scholes option pricing model includes various assumptions, including the expected life of incentive units, the expected volatility, and the expected risk-free interest rate. These assumptions reflect the Company’s best estimates, but they involve inherent uncertainties based on market conditions generally outside the control of the Company. As a result, if other assumptions are used, compensation cost could be materially impacted. The Company measures employee, non-employee, and board of director equity-based compensation on the grant date fair value basis. Equity-based compensation expense is recognized over the requisite service period of the awards. For equity awards that have a performance condition, the Company recognizes compensation expense based on its assessment of the probability that the performance condition will be achieved. The Company classifies equity-based compensation expense in its Consolidated Statements of Operations in the same manner in which the award recipient’s salary and related costs are classified or in which the award recipient’s service payments are classified. Employee Retirement Benefits The Company has a 401(k) plan that all eligible employees can contribute pre-tax and after-tax (Roth) to up to the maximum annual amount established by the Internal Revenue Code. In 2020, the Company matched 50% of the employee’s contribution to the 401(k) plan up to the first 7% of their contribution. Previously, the Company matched 35% of the employee's contribution to the 401(k) plan up to the first 6% of their contribution. Matching contributions made by the Company were approximately $3.0 million, $1.4 million, and $0.6 million for the years ended December 31, 2020, 2019, and 2018, respectively. Matching contributions will be fully vested after three years of service. Employee contributions are 100% vested immediately. The increased match percentage combined with increased headcount contributed to the increase in the Company’s matching contribution in 2020. The acquisition of Zoom Information, Inc. contributed to the increase in the Company's matching contribution in 2019. Recent Accounting Pronouncements Recent Accounting Pronouncements Not Yet Adopted In March 2020, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2020-04, which provides optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships, and other transactions that reference the London Interbank Offered Rate ("LIBOR") or another reference rate expected to be discontinued because of reference rate reform, if certain criteria are met. The standard applies to contract modifications that replace a reference rate affected by reference rate reform and contemporaneous modifications of other contract terms related to the replacement of the reference rate. Further, the standard provides exceptions to certain guidance in ASC 815, Derivatives and Hedging, related to changes to the critical terms of a hedging relationship due to reference rate reform and provides optional expedients for fair value, cash flow, and net investment hedging relationships for which the component excluded from the assessment of hedge effectiveness is affected by reference rate reform. The standard is effective for us as of March 12, 2020 through December 31, 2022, and we may elect to apply the provisions of the standard as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020 up to the date that the financial statements are available to be issued. Once elected, the provisions of the standard must be applied prospectively for all similar eligible contract modifications other than derivatives, which may be applied at a hedging relationship level. The standard would apply to our existing variable rate financing and derivatives designated as hedges if elected in the future. The Company continues to evaluate the impact of the guidance and may apply other elections as applicable as additional changes in the market occur. Recently Adopted Accounting Pronouncements In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which requires the measurement and recognition of expected credit losses for financial assets held at amortized cost. It also eliminates the concept of other-than-temporary impairment and requires credit losses related to available-for-sale debt securities to be recorded through an allowance for credit losses rather than as a reduction in the amortized cost basis of the securities. These changes will result in more timely recognition of credit losses. The guidance is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. The Company adopted ASU 2016-13 and ASU 2019-05 effective January 1, 2020. The adoption of this guidance was on a modified retrospective basis and did not have a material impact on the Company's consolidated financial statements. In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820), which amends disclosure requirements for fair value measurements by requiring new disclosures, modifying existing requirements, and eliminating others. The amendments are the result of a broader disclosure project, which aims to improve the effectiveness of disclosures. ASU No. 2018-13 is effective for fiscal years beginning after December 15, 2019 and interim periods within those fiscal years. The Company adopted ASU 2018-13 on January 1, 2020, and the adoption did not have a material effect on the Company’s financial statements or disclosures.

Revenue from Contracts with Customers

12 Months Ended

Dec. 31, 2020

Revenue from Contracts with Customers

Note 3 - Revenue from Contracts with Customers

Revenue comprised the following service offerings (in millions):


	Year Ended December 31,
	2020		2019		2018
Subscription	$	471.2	$	289.3	$	143.4
Usage-based	5.0		4.0		0.9
Total revenue	$	476.2	$	293.3	$	144.3

Go-To-Market business intelligence tools are subscription services that allow customers access to our SaaS tools to support sales and marketing processes, which include data, analytics, and insights to provide accurate and comprehensive intelligence on organizations and professionals. Our customers use our platform to identify target customers and decision makers, obtain continually updated predictive lead and company scoring, monitor buying signals and other attributes of target companies, craft messages, engage via automated sales tools, and track progress through the deal cycle.

Usage-based revenue is comprised largely of email verification and intent-driven audience and targeting services, which are charged to our customers on a per unit basis based on their usage. We regularly observe that customers integrate our usage-based services into their internal workflows and use our services on an ongoing basis. We recognize usage-based revenue at the point in time the services are consumed by the customer, thereby satisfying our performance obligation.

Of the total revenue recognized in the years ended December 31, 2020, 2019, and 2018, $155.4 million, $52.2 million and $37.1 million was included in the unearned revenue balance as of December 31, 2019, 2018, and 2017, respectively. Revenue recognized from performance obligations satisfied (or partially satisfied) in previous periods was not material.

We had no Company sales offices located in a foreign country as of December 31, 2020, and we contract exclusively with our customers in the United States Dollar.

Contract Assets and Unearned Revenue

The Company’s standard billing terms typically require payment at the beginning of each annual or quarterly period. Subscription revenue is generally recognized ratably over the contract term starting with when the service is made available to the customer. Usage-based revenue is recognized in the period services are used by customers. The amount of revenue recognized reflects the consideration the Company expects to be entitled to receive in exchange for these services.

The Company records a contract asset when revenue recognized on a contract exceeds the billings to date for that contract. Unearned revenue results from cash received or amounts billed to customers in advance of revenue recognized upon the satisfaction of performance obligations. The unearned revenue balance is influenced by several factors, including seasonality, the compounding effects of renewals, invoice duration, invoice timing, dollar size, and new business timing within the quarter. The unearned revenue balance does not represent the total contract value of annual or multi-year, non-cancellable subscription agreements.

The contract asset balances of $2.4 million and $0.1 million as of December 31, 2020 and 2019, respectively, are recorded as current assets within Prepaid expenses and other current assets in the Consolidated Balance Sheets. The unearned revenue balances were $222.7 million and $159.1 million as of December 31, 2020 and 2019, respectively.

Transaction price allocated to remaining performance obligations represents contracted revenue that has not yet been recognized, which includes unearned revenue and unbilled amounts that will be recognized as revenue in future periods. Transaction price allocated to remaining performance obligations is influenced by several factors, including seasonality, the timing of renewals, and disparate contract terms. Revenue allocated to remaining performance obligations represents contracted revenue that has not yet been recognized, which includes unearned revenue and backlog. The Company's backlog represents installment billings for periods beyond the current billing cycle. The majority of the Company’s noncurrent remaining performance obligations will be recognized in the next 13 to 36 months.

The remaining performance obligations consisted of the following (in millions):


	Current		Noncurrent		Total
As of December 31, 2020	$	432.2	$	126.8	$	559.0
As of December 31, 2019	$	266.6	$	74.1	$	340.7

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Cash and Cash Equivalents [Abstract]

Business Combinations

12 Months Ended

Dec. 31, 2020

Business Combinations [Abstract]

Business Combinations

Note 4 - Business Combinations

The Company completed two acquisitions in each of 2020 and 2019, all of which qualified as business combinations. For information on goodwill and acquired intangible asset balances, see Note 7.

2020 Acquisitions

The Company acquired all of the assets of Clickagy, LLC on October 14, 2020 and all of the membership interests in EverString Technology, LLC on November 3, 2020 for a total purchase consideration of $71.7 million. The Company included the financial results of these businesses in the consolidated financial statements from each date of acquisition. Transaction costs associated with each acquisition were not material. As part of the acquisitions, the Company agreed to issue $2.1 million of RSUs and agreed to pay $4.8 million of incentive compensation to acquired employees, subject to continued employment, to be recognized in the post-combination periods. The Company classifies compensation expense in its Consolidated Statements of Operations in the same manner in which the award recipient’s salary is classified.

The acquisition date fair value of the total consideration transferred was comprised of the following (in millions):


Cash	$	61.6
Purchase consideration liabilities	7.2
Issuance of 67,075 Class A shares	2.9
Total Purchase Consideration	$	71.7

The following table summarizes the aggregate fair values of the assets acquired and liabilities assumed, as of the date of the acquisitions (in millions):



Cash and cash equivalents	$	2.9
Accounts receivable	3.0
Prepaid expenses and other assets	1.1
Intangible assets	37.0
Accounts payable and other	(2.2)
Unearned revenue	(3.4)
Total identifiable net assets acquired	38.4
Goodwill	33.3
Total consideration	71.7
Issuance of 67,075 Class A shares	(2.9)
Cash acquired	(2.9)
Cash paid for acquisitions	$	65.9

The excess of purchase consideration over the fair value of net tangible and intangible assets acquired was recorded as goodwill. The fair values assigned to tangible and identifiable intangible assets acquired and liabilities assumed are based on management’s estimates and assumptions. The fair values of assets acquired and liabilities assumed may be subject to change as additional information is received, including the finalization of tax assets and liabilities.

The following table sets forth the components of identifiable intangible assets acquired and the estimated useful lives as of the dates of acquisition (in millions):


	Fair Value		Weighted Average Useful Life
Brand portfolio	$	2.0	6.5 years
Developed technology	29.6		7.0 years
Database	2.0		4.0 years
Customer relationships	3.4		9.3 years
Total intangible assets	$	37.0

Developed technology represents the fair value of the technology portfolios acquired. The goodwill is primarily attributed to the expanded market opportunities when integrating technology with the Company’s technology and the assembled workforce. The goodwill balance from both acquisitions is expected to be deductible for U.S. income tax purposes.

Pro forma information related to the acquisitions has not been presented as the impact was not material to the Company’s financial results.

2019 Acquisitions

Komiko

On October 9, 2019, through a newly formed wholly owned subsidiary, DiscoverOrg Acquisition (Komiko), LLC, the Company acquired certain assets and assumed certain liabilities of Komiko LTD (“Komiko”), which offered an AI-powered sales and customer success solution for business to business companies under the Komiko trade name. The Company has included the financial results of Komiko in the consolidated financial statements from the date of acquisition. Transaction costs associated with the acquisition were not material. The acquisition date fair value of the consideration transferred for Komiko was $8.5 million, comprised of the following (in millions):


Cash	$	8.3
Contingent earnout payments	0.2
Total purchase consideration	$	8.5

The fair value of the contingent earnout payments was determined based on the Company’s probability-weighted estimate of future payments. Potential contingent payments may be as high as $4.0 million if all performance criteria are met, of which 40% is attributable to purchase consideration and the balance compensation expense as it is contingent upon continued employment with the Company by Komiko’s co-founders. During the year ended December 31, 2020, the Company adjusted the Komiko contingent payment liability by $1.6 million.

The following table summarizes the fair values of the assets acquired and liabilities assumed, as of the date of acquisition (in millions):



Developed technology	$	2.4

Unearned revenue	(0.2)
Total identifiable net assets acquired	2.2
Goodwill	6.3
Total consideration	8.5
Contingent Earnout Payments	(0.2)
Cash paid for acquisitions	$	8.3

Developed technology represents the fair value of the Komiko technology portfolio. The goodwill balance is primarily attributed to the expanded market opportunities when integrating Komiko’s technology with DiscoverOrg’s technology and the assembled workforce. The goodwill balance is expected to be deductible for U.S. income tax purposes.

Pre-Acquisition ZI

On February 1, 2019, the Company, through a newly formed wholly owned subsidiary, Zebra Acquisition Corporation, acquired 100% of the stock of Zoom Information, Inc. (“Pre-Acquisition ZI”). Pre-Acquisition ZI was a provider of company and contact information to sales and marketing professionals. Pre-Acquisition ZI served over 8,000 customers and has operations in the U.S., Israel, and Russia. The acquisition qualifies as a business combination and will be accounted for as such.

The Company has included the financial results of Pre-Acquisition ZI in the consolidated financial statements from the date of acquisition. The Company incurred approximately $2.7 million of transactions costs related to this acquisition which are included in Restructuring and transaction related expenses in the Consolidated Statements of Operations.

The acquisition date fair value of the consideration paid by the Company for Pre-Acquisition ZI was $760.1 million, including cash acquired of $12.1 million, and was comprised of the following (in millions):


Cash consideration	$	667.3
Liability for equity award settlement	25.2
Portion of replacement awards attributable to pre-acquisition service	27.9
Other purchase consideration liabilities	6.5
Deferred consideration	33.2
Total purchase consideration	$	760.1

In accordance with the purchase agreement, the Company will pay deferred consideration of $25.0 million and $10.0 million on the first and second anniversary of the Pre-Acquisition ZI acquisition, respectively. As of December 31, 2020, the remaining balance of $10.0 million was recorded in Accrued expenses and other current liabilities on the Company’s Consolidated Balance Sheets and will be paid in 2021. The fair value of the deferred consideration payments was determined using a present value calculation. The following table summarizes the fair values of the assets acquired and liabilities assumed, as of the date of acquisition (in millions):


Cash, cash equivalents, and restricted cash	$	12.1
Accounts receivable	22.1
Prepaid expenses and other assets	4.2
Property and equipment	6.3
Operating lease right-of-use assets	28.6
Intangible assets	322.0
Accounts payable and other liabilities	(6.8)
Lease liabilities	(28.6)
Deferred tax liabilities	(80.1)
Unearned revenue	(34.5)
Total identifiable net assets acquired	245.3
Goodwill	514.8
Total consideration	760.1
Deferred consideration	(33.2)
Cash acquired	(12.1)
Cash paid for acquisitions, net of cash acquired	$	714.8

The excess of purchase consideration over the fair value of identifiable net tangible and intangible assets acquired was recorded as goodwill. The fair values assigned to tangible and identifiable intangible assets acquired and liabilities assumed are based on management’s estimates and assumptions given the currently available information.

The fair value of acquired unearned revenue was $34.5 million which differs from the unearned revenue recorded by Pre-Acquisition ZI immediately prior to the acquisition of $68.3 million. The acquired unearned revenue, net of the $33.8 million fair value adjustment, was recognized as revenue over a period of approximately one year, which represented the period the related contracted services were provided.

Additionally, the Company agreed with the sellers of Pre-Acquisition ZI to put a Cash Vesting Payment Program in place for employees that held non-vested options as of the acquisition date, after giving effect to the acquisition and any vesting that resulted from the acquisition. Under the Cash Vesting Payment Program, the Company agreed to make payments to employees in the amount of the value that they would have received, had their options been vested at the time of the acquisition. Payments will be made to employees that continue their employment with the Company through the vesting milestones defined in their Pre-Acquisition ZI option agreements, and can be accelerated in certain circumstances upon termination, if the employee is terminated without cause, as defined in the Cash Vesting Payment Agreement. Employees that terminate their employment in other circumstances will forfeit any future payments.

As of December 31, 2020, the potential value of future payments under the Cash Vesting Payment Program was $4.2 million to be paid to employees through 2022, assuming continued employment for each employee. The Company recognized $6.4 million and $8.8 million of expense under the Cash Vesting Program for the years ended December 31, 2020 and 2019, respectively. Based on the requirement for continued service, the cost related to payments under the Cash Vesting Payment Program, expense is recognized as compensation and reflected on the Statement of Operations in the same category as salary expense of the recipient.

The following table sets forth the components of identifiable intangible assets acquired and the estimated useful lives as of the date of acquisition (in millions):


	Fair Value		Weighted Average Useful Life
Brand portfolio	$	33.0	Indefinite
Developed technology	116.0		5.8 years
Customer relationships	173.0		15.0 years
Total intangible assets	$	322.0

Developed technology represents the fair value of the Pre-Acquisition ZI technology, including software and databases acquired. Customer relationships represent the fair values of the underlying relationships with Pre-Acquisition ZI customers. The goodwill balance is primarily attributed to the assembled workforce and the expanded market opportunities when integrating Pre-Acquisition ZI’s technology with DiscoverOrg’s technology. The goodwill balance is not expected to be deductible for U.S. income tax purposes.

The amounts of Pre-Acquisition ZI’s revenue and earnings included in the Company’s consolidated results of operations for the year ended December 31, 2019, cannot be determined as the operations of Pre-Acquisition ZI were rapidly integrated into the DiscoverOrg operations, and many existing customer contracts were modified or replaced subsequent to the acquisition with the new contracts containing subscriptions from both Pre-Acquisition ZI and DiscoverOrg as a result of subsequent sales activities.

The unaudited pro forma revenue and earnings of the combined entity had the acquisition date been January 1, 2018, are as follows:


	Revenue	Loss Before Income Taxes
Supplemental pro forma from January 1, 2019 to December 31, 2019	334.1	(48.0)
Supplemental pro forma from January 1, 2018 to December 31, 2018	205.6	(146.4)

The unaudited pro forma information above is adjusted for the amortization of unearned revenue fair value adjustments, acquired tangible and intangible assets, interest expense, and $9.2 million of transaction costs and bonuses incurred by the Company and Pre-Acquisition ZI as if the acquisition had occurred on January 1, 2018. This pro forma information is prepared for comparative purposes only and does not necessarily reflect the actual results that would have occurred, nor is it necessarily indicative of future results of operations of the combined companies.

Cash, Cash Equivalents, and Short-term Investments

12 Months Ended

Dec. 31, 2020

Cash, Cash Equivalents, and Short-term Investments

Note 5 - Cash, Cash Equivalents, and Short-term Investments

Cash, cash equivalents, and short-term investments consisted of the following as of December 31, 2020:


(in millions)	Amortized Cost		Unrealized Gains		Unrealized Losses		Estimated Fair Value
Current assets:
Cash	$	100.4	$	—	$	—	$	100.4
Cash equivalents:
Corporate debt securities	72.0		—		—		72.0
Money market mutual funds	91.0		—		—		91.0
U.S. Treasury securities	6.4		—		—		6.4
Total cash equivalents	169.4		—		—		169.4
Total cash and cash equivalents	269.8		—		—		269.8
Short-term investments:
Corporate debt securities	24.0		—		—		24.0
U.S. Treasury securities	2.0		—		—		2.0
U.S. government agency securities	4.6		—		—		4.6
Total short-term investments	30.6		—		—		30.6
Total cash, cash equivalents, and short-term investments	$	300.4	$	—	$	—	$	300.4

Cash and cash equivalents consisted of $41.4 million of cash as of December 31, 2019. There were no short-term investments as of December 31, 2019.

See Note 10 for further information regarding the fair value of our financial instruments.

We had immaterial gross unrealized losses related to our available-for-sale securities as of December 31, 2020. The following table summarizes the fair value of our available-for-sale securities that have been in a continuous unrealized loss position as of December 31, 2020:

December 31, 2020

December 31, 2019

(in millions)

Less Than Twelve Months

More Than Twelve Months

Less Than Twelve Months

More Than Twelve Months

Corporate debt securities

$78.0

N/A

There were twenty-four securities in an unrealized loss position for less than twelve months at December 31, 2020. There were no securities in an unrealized loss position for more than twelve months at December 31, 2020.

The following table summarizes the cost and estimated fair value of the securities classified as short-term investments based on stated effective maturities as of December 31, 2020:


(in millions)	Amortized Cost	Estimated Fair Value
Due within one year	$30.6	$30.6
Total	$30.6	$30.6

Property and Equipment

12 Months Ended

Dec. 31, 2020

Property, Plant and Equipment [Abstract]

Property and Equipment

Note 6 - Property and Equipment

The Company’s fixed assets consist of the following (in millions):


	December 31,
	2020		2019
Computer equipment	$	7.4	$	4.1
Furniture and fixtures	5.4		4.8
Leasehold improvements	7.0		5.0
Internal use developed software	28.0		19.7
Construction in progress	2.9		0.9
	50.7		34.5
Less: accumulated depreciation	(19.7)		(11.2)
Property and equipment, net	$	31.0	$	23.3

Depreciation expense was $8.9 million, $6.1 million, and $2.6 million for the years ended December 31, 2020, 2019, and 2018, respectively.

Goodwill and Acquired Intangible Assets

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Acquired Intangible Assets

Note 7 - Goodwill and Acquired Intangible Assets

Intangible assets consisted of the following as of December 31, 2020 (in millions):



	Gross Carrying Amount		Accumulated Amortization		Net		Weighted Average Amortization Period in Years
Intangible assets subject to amortization:
Customer relationships	$	272.0	$	(52.6)	$	219.4	14.9
Acquired technology	195.5		(85.8)		109.7		6.3
Brand portfolio	6.6		(3.0)		3.6		8
Net intangible assets subject to amortization	$	474.1	$	(141.4)	$	332.7

Intangible assets not subject to amortization
Pre-Acquisition ZI brand portfolio					$	33.0
Goodwill					$	1,000.1

Intangible assets consisted of the following as of December 31, 2019 (in millions):



	Gross Carrying Amount		Accumulated Amortization		Net		Weighted Average Amortization Period in Years
Intangible assets subject to amortization:
Customer relationships	$	268.6	$	(34.5)	$	234.1	15
Acquired technology	163.9		(62.5)		101.4		6
Brand portfolio	4.6		(2.5)		2.1		9.7
Net intangible assets subject to amortization	$	437.1	$	(99.5)	$	337.6

Intangible assets not subject to amortization
Pre-Acquisition ZI brand portfolio					$	33.0
Goodwill					$	966.8

Amortization expense was $41.9 million, $42.6 million, and $14.7 million for the years ended December 31, 2020, 2019, and 2018, respectively.

Future amortization expense for intangible assets as of December 31, 2020 is as follows (in millions):


	Estimate Amortization Expense
For years ended December 31,
2021	$	46.2
2022	$	46.2
2023	$	35.8
2024	$	34.2
2025	$	33.4

The following summarizes changes to the Company’s goodwill (in millions):


Balance at December 31, 2018	$	445.7
Goodwill from 2019 acquisitions	521.1
Balance at December 31, 2019	966.8
Goodwill from 2020 acquisitions	33.3
Balance at December 31, 2020	$	1,000.1

Based on the results of the Company’s impairment assessment, the Company did not recognize any impairment of goodwill during the years ended December 31, 2020 and 2019.

Financing Arrangements

12 Months Ended

Dec. 31, 2020

Debt Disclosure [Abstract]

Financing Arrangements

Note 8 - Financing Arrangements

As of December 31, 2020 and December 31, 2019, the carrying values of the Company’s borrowings were as follows (in millions):


				Carrying Value as of
Instrument	Date of Issuance	Maturity Date	Elected Interest Rate	December 31, 2020		December 31, 2019

First Lien Term Loan	February 1, 2019	February 1, 2026	LIBOR +3.75%	$	744.9	$	841.6
First Lien Revolver	February 1, 2019	February 1, 2024	LIBOR +3.50%	—		—
Second Lien Term Loan	February 1, 2019	February 1, 2027	LIBOR +8.50%	—		361.7
Total Carrying Value of Debt				744.9		1,203.3
Less current portion				—		(8.7)
Total Long-Term Debt				$	744.9	$	1,194.6

First Lien Term Loan

In conjunction with the acquisition of Pre-Acquisition ZI on February 1, 2019, ZoomInfo raised $965 million of first lien debt through the First Lien Credit Agreement. In addition to funding the purchase of Pre-Acquisition ZI, the proceeds were used to repay all previously outstanding indebtedness.

On February 19, 2020, the Company completed a repricing of its First Lien Term Loan Facility in order to take advantage of currently available lower interest rates. The repricing decreased the interest rate by 50 basis points to LIBOR plus 4.00% per annum. The transaction did not include additional borrowings, and the maturity date of the financing arrangement remained unchanged.

The first lien debt has a variable interest rate whereby the Company can elect to use a Base Rate or LIBOR plus an applicable rate. The applicable margin is 2.75% to 3.00% for Base Rate loans or 3.75% or 4.00% for LIBOR Based Loans, depending on the Company’s leverage. On June 17, 2020, the Company used approximately $101.2 million to prepay $100.0 million aggregate principal amount of the first lien term loans outstanding under the First Lien Credit Agreement, including accrued interest thereon of $1.2 million. The repayment was funded with a portion of the net proceeds received from the initial public offering of the Company’s Class A common stock. As of December 31, 2020, $756.4 million aggregate principal amount of term loans were outstanding under the First Lien Credit Agreement. The interest related portion of the repayment was recorded within Interest expense, net in its Consolidated Statements of Operations, and represented use of cash from operating activities in the Consolidated Statements of Cash Flows. The quarterly repayment requirement on first lien borrowings has been satisfied for the remainder of the term after the $100.0 million principal payment. The effective interest rate on the first lien debt was 4.3% and 7.5% as of December 31, 2020 and December 31, 2019, respectively.

Second Lien Term Loan

In conjunction with the acquisition of Pre-Acquisition ZI on February 1, 2019, ZoomInfo raised $370.0 million of second lien debt.

On June 8, 2020, the Company used approximately $380.6 million of the proceeds of the IPO to repay the entire aggregate principal amount outstanding under the Second Lien Credit Agreement, including prepayment premiums of $3.7 million and accrued interest thereon of $6.9 million. The effective interest rate was 10.8% as of the repayment date. The Company recognized $7.3 million loss on the extinguishment of debt relating to the write-off of unamortized issuance costs. The Company recognized $11.0 million within Loss on debt extinguishment on the Consolidated Statements of Operations comprised of the write-off of unamortized issuance costs and the prepayment penalty incurred on the payoff. The effective interest rate on the second lien debt was 11.9% as of December 31, 2019.

First Lien Revolving Credit Facility

In conjunction with the acquisition of Pre-Acquisition ZI on February 1, 2019, ZoomInfo entered into the First Lien Credit Agreement providing a $100.0 million credit facility.

On March 25th, 2020, the Company drew down $35.0 million under the revolving credit facility. On June 8, 2020, the Company paid off the outstanding $35.0 million balance of the revolving credit facility with proceeds from the IPO. The effective interest rate was 3.7% as of the repayment date. Immaterial debt issuance costs were incurred in connection with the entry into the revolving credit facility. These debt issuance costs are amortized into interest expense over the expected life of the arrangement. Unamortized debt issuance costs included in Deferred costs, net of current portion on the accompanying Consolidated Balance Sheets were immaterial as of December 31, 2020 and December 31, 2019.

First Lien Credit Agreement

The First Lien Credit Agreement is secured by substantially all the productive assets of the Company. The First Lien Credit Agreement contains a number of covenants that restrict, subject to certain exceptions, the Company’s ability to, among other things:

•incur additional indebtedness;

•create or incur liens;

•engage in certain fundamental changes, including mergers or consolidations;

•sell or transfer assets;

•pay dividends and distributions on our subsidiaries’ capital stock;

•make acquisitions, investments, loans or advances;

•engage in certain transactions with affiliates; and

•enter into negative pledge clauses and clauses restricting subsidiary distributions.

If the Company draws more than $35.0 million of the revolving credit loan, the revolving credit loan is subject to a springing financial covenant pursuant to which the consolidated first lien net leverage ratio must not exceed 7.65 to 1.00. The credit agreements also contain certain customary affirmative covenants and events of default, including a change of control. If an event of default occurs, the lenders under the credit agreements will be entitled to take various actions, including the acceleration of amounts due under the credit agreements and all actions permitted to be taken by a secured creditor.

Redeemable Series A Preferred Units

In conjunction with the acquisition of Pre-Acquisition ZI on February 1, 2019, ZoomInfo issued 51,750,000 of Series A Preferred Units in exchange for $200.2 million, net of issuance costs. On June 8, 2020, the Company redeemed and cancelled all outstanding Series A Preferred Units of ZoomInfo OpCo. Refer to Note 13 for additional discussion regarding Series A Preferred Units and related redemption.

The expected future principal payments for all borrowings as of December 31, 2020 is as follows (in millions):


		Contractual Maturity		Discounts and Issuance Costs		As Presented
For the year ended December 31,	2021	$	—	$	(2.6)	$	(2.6)
	2022	—		(2.7)		(2.7)
	2023	—		(2.9)		(2.9)
	2024	—		(3.0)		(3.0)
	2025	—		(0.3)		(0.3)
	Thereafter	756.4		—		756.4
		$	756.4	$	(11.5)	$	744.9

Derivatives and Hedging Activities

12 Months Ended

Dec. 31, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives and Hedging Activities

Note 9 - Derivatives and Hedging Activities

We are exposed to changes in interest rates, primarily relating to changes in interest rates on our first lien term loan. Consequently, from time to time, we may use interest rate swaps or other financial instruments to manage our exposure to interest rate movements. Our primary objective in holding derivatives is to reduce the volatility of cash flows associated with changes in interest rates. We do not enter into derivative transactions for speculative or trading purposes.

We recognize derivative instruments and hedging activities on a gross basis as either assets or liabilities on the Company’s Consolidated Balance Sheets and measure them at fair value. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the earnings effect of the hedged forecasted transactions in a cash flow hedge. To receive hedge accounting treatment, all hedging relationships are formally documented at the inception of the hedge, and the hedges must be highly effective in offsetting changes to future cash flows on hedged transactions.

In April 2019, the Company entered into two separate interest rate swap agreements to convert a portion of the Company’s floating-rate debt that is based on LIBOR to a fixed-rate, reducing the impact of interest rate changes on future interest expense. The first agreement converts $350.0 million of floating rate debt under our first lien credit facility to fixed rate obligations. The second agreement caps the interest rate applied to $500.0 million of the Company’s floating-rate debt in the event the interest rate should rise above the cap strike rate. Our interest rate swap contracts mature in April 2022, and our interest rate cap contract matures in April of 2024.

During the year ended December 31, 2020, we entered into forward-starting interest rate swaps to hedge the variability of forecasted interest payments on our first lien debt after April 2022. The total notional amount of these forward-starting interest rate swaps is $500.0 million as of December 31, 2020. These forward-starting interest rate swaps will fix the benchmark interest rate and hedge the variability of forecasted interest payments from April 2022 through January 2026.

During the second quarter of 2020, the Company reduced its LIBOR based debt to $756.4 million (refer to Note 8), which is below the total notional amounts of our Derivative Instruments of $850.0 million as of the date of the debt repayment. Consequently, concurrent with the repayment of the entire aggregate principal amount outstanding under the Second Lien Credit Agreement and prepayment of $100.0 million aggregate principal amount of the first lien term loans outstanding under the First Lien Credit Agreement, we dedesignated the Derivative Instruments. As the forecasted interest payments on $93.7 million not redesignated was probable to not occur, the Company reclassified the existing deferred loss on that portion of the derivative of $3.3 million from AOCI into Interest expense, net in the Consolidated Statements of Operations.

During the year ended December 31, 2020 the Company dedesignated and redesignated certain hedges contemporaneously with the inception of our forward-starting interest rate swaps to achieve optimal interest rate protections. As of December 31, 2020, $243.6 million of the notional amount of the interest rate cap contract is not designated as an accounting hedge.

As December 31, 2020, the Company had the following outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk ($ in millions):


Interest Rate Derivatives (Level 2)	Number of Instruments	Notional Aggregate Principal Amount		Interest Cap / Swap Rate		Maturity Date
Interest rate cap contract	One	$	256.4	3.500	%	April 30, 2024
Interest rate swap contracts	Two	$	350.0	2.301	%	April 29, 2022
Forward-starting interest rate swap contracts	Two	$	500.0	0.370	%	January 30, 2026

The following table summarizes the fair value and presentation in the Consolidated Balance Sheets for derivatives as of December 31, 2020 and December 31, 2019 (in millions):


	Fair Value of Derivative Instruments
Instrument	December 31, 2020				December 31, 2019
	Derivative Assets		Derivative Liabilities		Derivative Assets		Derivative Liabilities
Derivatives designated as hedging instruments
Interest rate cap contract(1)	$	—	$	0.2	$	—	$	0.3
Interest rate cap contract(2)	—		0.2		—		0.4
Interest rate swap contracts(1)	—		7.3		—		2.3
Interest rate swap contracts(2)	—		2.2		—		3.0
Forward-starting interest rate swap contracts(3)	1.0		—		—		N/A
Total designated derivative fair value	1.0		9.9		—		6.0

Derivatives not designated as hedging instruments
Interest rate cap contract(1)	—		0.2		—		—
Interest rate cap contract(2)	—		0.2		—		—
Total undesignated derivative fair value	—		0.4		—		—
Total derivative fair value	$	1.0	$	10.3	$	—	$	6.0

________________

(1) Included in Accrued expenses and other current liabilities on our Consolidated Balance Sheets.

(2) Included in Other long-term liabilities on our Consolidated Balance Sheets.

(3) Included in Deferred costs and other assets, net of current portion on our Consolidated Balance Sheets.

The change in fair value of any derivative instruments was recorded, net of income tax, in Accumulated other comprehensive income (loss) (“AOCI”) on the Company’s Consolidated Balance Sheets to the extent the agreements were designated as effective hedges. In the period that the hedged item affects earnings, such as when interest payments are made on the Company’s variable-rate debt, we reclassify the related gain or loss on the interest rate swap cash flow hedges and any receipts on the cap to Interest expense, net and as operating cash flows in our Consolidated Statements of Cash Flows. Income tax effects from changes in fair value of derivative instruments are recorded in our Consolidated Statements of Operations when the derivative instruments are settled. Over the next 12 months, we expect to reclassify approximately $5.9 million into interest expense from AOCI.

Refer to the Company’s Consolidated Statements of Comprehensive Income (Loss) for amounts reclassified from AOCI into earnings related to the Company’s Derivative Instruments designated as cash flow hedging instruments for each of the reporting periods.

Fair Value

12 Months Ended

Dec. 31, 2020

Fair Value Disclosures [Abstract]

Fair Value

Note 10 - Fair Value

The Company's financial instruments consist principally of cash and cash equivalents, short-term investments, prepaid expenses and other current assets, accounts receivable, and accounts payable, accrued expenses, and long-term debt. The carrying value of cash and cash equivalents, prepaid expenses and other current assets, accounts receivable, accounts payable, and accrued expenses approximate fair value, primarily due to short maturities. We classify our money market mutual funds as Level 1 of the fair value hierarchy. We classify our corporate debt securities, U.S. Treasury securities, and U.S. government agency securities as Level 2 of the fair value hierarchy. The carrying values of the Company's debt instruments approximate their fair value based on Level 2 inputs since the instruments carry variable interest rates based on LIBOR or other applicable reference rates.

The Company has elected to use the income approach to value the interest rate derivatives using observable Level 2 market expectations at measurement date and standard valuation techniques to convert future amounts to a single present amount (discounted) reflecting current market expectations about those future amounts. Level 2 inputs for the derivative valuations are limited to quoted prices for similar assets or liabilities in active markets (specifically futures contracts) and inputs other than quoted prices that are observable for the asset or liability (specifically LIBOR cash and swap rates, implied volatility for options, caps and floors, basis swap adjustments, overnight indexed swap (“OIS”) short term rates and OIS swap rates, when applicable, and credit risk at commonly quoted intervals). Mid-market pricing is used as a practical expedient for most fair value measurements. Key inputs, including the cash rates for very short term, futures rates and swap rates beyond the derivative maturity are interpolated to provide spot rates at resets specified by each derivative (reset rates are then further adjusted by the basis swap, if necessary). Derivatives are discounted to present value at the measurement date at LIBOR rates unless they are fully collateralized. Fully collateralized derivatives are discounted to present value at the measurement date at OIS rates (short term OIS rates and long term OIS swap rates).

Inputs are collected from SuperDerivatives, an independent third-party derivative pricing data provider, as of the close on the last day of the period. The valuation of the interest rate swaps also take into consideration estimates of our own, as well as counterparty’s, risk of non-performance under the contract.

We estimate the value of other long-lived assets that are recorded at fair value on a non-recurring basis based on a market valuation approach. We use prices and other relevant information generated primarily by recent market transactions involving similar or comparable assets, as well as our historical experience in divestitures, acquisitions and real estate transactions. Additionally, we may use a cost valuation approach to value long-lived assets when a market valuation approach is unavailable. Under this approach, we determine the cost to replace the service capacity of an asset, adjusted for physical and economic obsolescence. When available, we use valuation inputs from independent valuation experts, such as real estate appraisers and brokers, to corroborate our estimates of fair value. Real estate appraisers’ and brokers’ valuations are typically developed using one or more valuation techniques including market, income and replacement cost approaches. Because these valuations contain unobservable inputs, we classify the measurement of fair value of long-lived assets as Level 3.

The fair value (in millions) of our financial assets and (liabilities) was determined using the following inputs:


Fair Value at December 31, 2020	Level 1		Level 2		Level 3
Measured on a recurring basis:
Assets:
Cash equivalents:
Corporate debt securities	$	—	$	72.0	$	—
Money market mutual funds	$	91.0	$	—	$	—
U.S. Treasury securities	$	—	$	6.4	$	—
Short-term investments:
Corporate debt securities	$	—	$	24.0	$	—
U.S. Treasury securities	$	—	$	2.0	$	—
U.S. government agency securities	$	—	$	4.6	$	—
Deferred costs and other assets, net of current portion
Forward-starting interest rate swap contracts	$	—	$	1.0	$	—
Liabilities:
Derivative contracts:
Interest rate cap contract	$	—	$	(0.8)	$	—
Interest rate swap contracts	$	—	$	(9.5)	$	—

Measured on a non-recurring basis:
N/A	$	—	$	—	$	—


Fair Value at December 31, 2019	Level 1		Level 2		Level 3
Measured on a recurring basis:
Liabilities:
Derivative contracts:
Interest rate cap contract	$	—	$	(0.7)	$	—
Interest rate swap contracts	$	—	$	(5.3)	$	—

Measured on a non-recurring basis:
Assets:
Impaired right-of-use assets	$	—	$	—	$	1.4

There have been no transfers between fair value measurements levels during the year ended December 31, 2020.

See Note 5 for further information regarding the fair value of our financial instruments.

Commitments and Contingencies Disclosure [Abstract]

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Commitment and Contingencies

12 Months Ended

Dec. 31, 2020

Commitments and Contingencies

Note 11 - Commitments and Contingencies

Non-cancelable purchase obligations

As of December 31, 2020, our outstanding non-cancelable purchase obligations with a term of 12 months or longer, mainly related to third-party cloud hosting and software as a service arrangements, were as follows:


Fiscal Period:	Amount (in millions)
2021	$	11.7
2022	3.9
2023	2.8
2024	0.1
2025	—
Thereafter	—
Total	$	18.5

Sales and use tax

The Company has conducted an assessment of sales and use tax exposure in states where the Company has established nexus. Based on this assessment, the Company has recorded a liability for taxes owed and related penalties and interest in the amount of $3.1 million and $2.1 million at December 31, 2020 and December 31, 2019, respectively. This liability is included in Accrued expenses and other current liabilities in the Company’s Consolidated Balance Sheets.

Contingent earnout payments

As of December 31, 2020, the Company is contingently committed to making an earnout payment of up to $4.0 million as part of our acquisition Komiko (refer to Note 4 for additional information).

Deferred acquisition-related payments

In accordance with the purchase agreement, the Company will pay deferred consideration of $10.0 million on the second anniversary of the Pre-Acquisition ZI acquisition in 2021. Refer to Note 4.

Legal matters

We are subject to various legal proceedings, claims, and governmental inspections, audits, or investigations that arise in the ordinary course of our business. There are inherent uncertainties in these matters, some of which are beyond management’s control, making the ultimate outcomes difficult to predict. Moreover, management’s views and estimates related to these matters may change in the future, as new events and circumstances arise and the matters continue to develop. Although the outcomes of these matters cannot be predicted with certainty, in the opinion of management, the ultimate resolution of these matters would not be expected to have a material adverse effect on our financial position, results of operations, or cash flows.

Stockholders' Equity and Members' Deficit	12 Months Ended
Stockholders' Equity and Members' Deficit	Dec. 31, 2020
Equity [Abstract]
Stockholders' Equity and Members' Deficit	Note 12 - Stockholders' Equity and Members' Deficit We have three classes of common stock: Class A common stock, Class B common stock, and Class C common stock. Holders of outstanding shares of our Class A common stock, Class B common stock, and Class C common stock will vote as a single class on all matters on which stockholders are entitled to vote generally, except as otherwise required by law. Shares of Class A common stock and Class C common stock are identical in all respects, except for voting rights, certain conversion rights and transfer restrictions in respect of the shares of Class C common stock, as described below. Voting rights Holders of Class A common stock are entitled to one vote per share and holders of Class B and Class C common stock are entitled to ten votes per share (for so long as the aggregate number of outstanding shares of our Class B and Class C common stock represents at least 5% of the aggregate number of our outstanding shares of common stock, and thereafter, one vote per share), on all matters on which stockholders of ZoomInfo Technologies Inc. are entitled to vote generally, including the election or removal of directors. No holders of any class of our common stock have cumulative voting rights in the election of directors. The voting power afforded to Pre-IPO Blocker Holders by their shares of Class C common stock, and Pre-IPO OpCo Unitholders and Pre-IPO HoldCo Unitholders, as applicable, by their shares of Class B common stock, is reduced as their shares are transferred or exchanged, as applicable, for shares of Class A common stock. Conversion rights and transfer restrictions The outstanding shares of Class C common stock are convertible at the option of the holder into shares of Class A common stock on a one-for-one basis. In addition, each share of Class C common stock will convert automatically into one share of Class A common stock upon any transfer, whether or not for value, or, if on the record date for any meeting of the stockholders, the aggregate number of outstanding shares of our Class B common stock and Class C common stock is less than 5% of our outstanding shares of common stock. Once converted into Class A common stock, Class C common stock will not be reissued. Shares of Class B common stock are not transferable except for (i) transfers to us for no consideration upon which transfer such share of Class B common stock will be automatically canceled, or (ii) together with the transfer of an identical number of OpCo Units or HoldCo Units made to the permitted transferee of such OpCo Units or HoldCo Units made in compliance with the applicable limited liability company agreement of ZoomInfo OpCo or ZoomInfo HoldCo. Upon the exchange of an OpCo Unit or a HoldCo Unit (together with a share of Class B common stock), as applicable, the shares of Class B common stock will be automatically canceled with no consideration and no longer outstanding. Dividends and distributions Holders of Class A and Class C common stock are entitled to receive dividends at the same rate, when, as and if declared by our board of directors out of funds legally available therefor, subject to any statutory or contractual restrictions on the payment of dividends and to the rights of the holders of one or more outstanding series of our preferred stock. If we pay a dividend or distribution on Class A common stock, payable in shares of Class A common stock, we also will be required to pay a pro rata and simultaneous dividend or distribution on Class C common stock, payable in shares of Class C common stock. Similarly, if we pay a dividend or distribution on Class C common stock, payable in shares of Class C common stock, we also will be required to make a pro rata and simultaneous dividend or distribution on Class A common stock, payable in shares of Class A common stock. Holders of Class B common stock do not have any right to receive dividends or to receive a distribution upon a liquidation, dissolution or winding up of ZoomInfo Technologies Inc. Upon our liquidation, dissolution, or winding up, subject to the rights of holders of one or more outstanding series of preferred stock having liquidation preferences, the holders Class A and Class C common stock are entitled to receive pro rata our remaining assets available for distribution. Exchange rights of holders of OpCo Units, Class P Units, LTIP Units, and HoldCo Units We amended and restated the limited liability company agreement of ZoomInfo OpCo in connection with the Reorganization Transaction so that the Pre-IPO OpCo Unitholders may (subject to the terms of such limited liability company agreement) exchange their OpCo Units (together with a corresponding number of shares of Class B common stock) for shares of Class A common stock of ZoomInfo Technologies Inc. on a one-for-one basis, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications. The holders of Class P Units have the right to exchange their vested Class P Units into a number of shares of Class A common stock that will generally be equal in value to the implied “spread value” of the corresponding Class P Units (calculated based on the excess of the public trading price of Class A common stock at the time of the exchange over the per unit strike price of such Class P Units). Holders of vested LTIP Units may similarly become eligible to convert their LTIP Units into OpCo Units which, in turn, may be exchanged on a one-for-one basis for shares of Class A common stock of ZoomInfo Technologies Inc. as described above. The limited liability company agreement of ZoomInfo HoldCo provides that the Pre-IPO HoldCo Unitholders may (subject to the terms of such limited liability company agreement) exchange their HoldCo Units (together with a corresponding number of shares of Class B common stock) for shares of Class A common stock of ZoomInfo Technologies Inc. on a one-for-one basis, subject to customary conversion rate adjustments for stock splits, stock dividends, and reclassifications. Noncontrolling Interest ZoomInfo Technologies Inc. operates and controls all of the business and affairs, and consolidates the financial results, of ZoomInfo OpCo through ZoomInfo HoldCo and, through ZoomInfo OpCo and its subsidiaries, conducts our business. Accordingly, ZoomInfo Technologies Inc. consolidates the financial results of ZoomInfo HoldCo, and therefore ZoomInfo OpCo, and reports the noncontrolling interests of its consolidated subsidiaries on its consolidated financial statements based on the HoldCo Units and OpCo Units held by Continuing Members. Changes in ZoomInfo’s ownership interest in its consolidated subsidiaries are accounted for as equity transactions. As such, future redemptions or direct exchanges of HoldCo Units or OpCo Units by Continuing Members will result in a change in ownership and reduce or increase the amount recorded as Noncontrolling interests and increase or decrease Additional paid-in capital in the Company’s Consolidated Balance Sheets. As of December 31, 2020, ZoomInfo Technologies Inc. held 173,820,611 HoldCo Units, and ZoomInfo HoldCo held 177,586,542 OpCo Units resulting in an ownership interest of 45% in the consolidated subsidiaries.

Redeemable Series A Preferred Units	12 Months Ended
Redeemable Series A Preferred Units	Dec. 31, 2020
Equity [Abstract]
Redeemable Series A Preferred Units	Note 13 - Redeemable Series A Preferred Units On February 1, 2019, and in connection with the ZoomInfo acquisition (see Note 4 - Business Combinations), the Company issued 51,750,000 Series A Preferred Units in exchange for $200.2 million, net of $0.6 million in issuance costs. As of December 31, 2019, 51,750,000 units remained outstanding. On June 8, 2020, the Company redeemed and cancelled all outstanding Series A Preferred Units of ZoomInfo OpCo for $274.2 million, the total redemption price, resulting in a $74.0 million reduction to Additional paid-in capital. The total redemption price paid included the carrying amount of $200.2 million, accreted but unpaid dividends of $45.4 million, and an excess amount due upon early redemption of $28.6 million. Of the $28.6 million excess amount paid, $17.6 million was attributed to noncontrolling interests and $11.0 million to common stockholders.

Earnings Per Share

12 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Earnings Per Share

Note 14 - Earnings Per Share

Basic net income (loss) per share of Class A and Class C common stock is computed by dividing net income attributable to ZoomInfo Technologies Inc. by the weighted-average number of shares of Class A and Class C common stock outstanding during the period, excluding unvested equity awards and subsidiary member units not exchanged. Diluted earnings per share of Class A and Class C common stock is calculated by dividing net income attributable to ZoomInfo Technologies Inc., adjusted for the assumed exchange of all potentially dilutive securities by the weighted-average number of shares of Class A and Class C common stock outstanding. Share counts used in the diluted earnings per share calculations are adjusted for the deemed repurchases provided for in the treasury stock method.

Prior to the IPO, the ZoomInfo OpCo membership structure included Series A Preferred Units, Preferred units, Common units, and Profits Interests in the form of Class P Units. The Company analyzed the calculation of earnings per unit for periods prior to the IPO and determined that it resulted in values that would not be meaningful to the users of these consolidated financial statements. Therefore, earnings per share information has not been presented for the years ended December 31, 2018 or December 31, 2019, and the basic and diluted earnings per share calculations for the year ended December 31, 2020 represent the post IPO period from June 4, 2020 to December 31, 2020 only.

The following table sets forth (in millions) the computation of net loss used to compute basic net income (loss) per share of Class A and Class C common stock for the year ended December 31, 2020. The basic and diluted earnings per share period for the year ended December 31, 2020, represents only the period from June 4, 2020 to December 31, 2020, which represents the period wherein we had outstanding Class A and Class C common stock.


	Year Ended December 31, 2020
Numerator:
Net loss	$	(36.4)
Add: Net loss attributable to ZoomInfo OpCo before Reorganization Transactions	5.1
Less: Excess of consideration paid over carrying amount to holders of Series A Preferred Units attributable to common shares	(11.0)
Add: Net loss attributable to noncontrolling interests	27.3
Net income (loss) attributable to ZoomInfo Technologies Inc.	$	(15.0)

The following table sets forth the computation of basic and diluted net income per share of Class A and Class C common stock (in millions, except share and per share amounts):


	Year Ended December 31, 2020
	Class A		Class C

Basic net income (loss) per share attributable to common stockholders
Numerator:
Allocation of net income (loss) attributable to ZoomInfo Technologies Inc.	$	(6.0)	$	(9.0)
Denominator:
Weighted average number of shares of Class A and Class C common stock outstanding	62,464,272		94,278,971
Basic net income (loss) per share attributable to common stockholders	$	(0.10)	$	(0.10)


	Year Ended December 31, 2020
	Class A		Class C

Diluted net income (loss) per share attributable to common stockholders
Numerator:
Undistributed earnings for basic computation	$	(6.0)	$	(9.0)
Increase in earnings attributable to common shareholders upon conversion of potentially dilutive instruments	(2.0)		(2.9)
Reallocation of earnings as a result of conversion of potentially dilutive instruments	(1.2)		1.2
Reallocation of undistributed earnings as a result of conversion of Class C to Class A shares	(10.7)		—
Allocation of undistributed earnings	$	(19.9)	$	(10.7)
Denominator:
Number of shares used in basic computation	62,464,272		94,278,971
Add: weighted-average effect of dilutive securities exchangeable for Class A common stock:
HSKB I Class 1 Units	9,384,174		—
Class P Units	8,397,751		—
Exercise of Class A Common Stock Options	179,450		—






Conversion of Class C to Class A common shares outstanding	94,278,971		—
Weighted average shares of Class A and Class C common stock outstanding used to calculate diluted net income (loss) per share	174,704,618		94,278,971
Diluted net income (loss) per share attributable to common stockholders	$	(0.11)	$	(0.11)

Shares of the Company’s Class B common stock do not participate in the earnings or losses of ZoomInfo Technologies Inc. and are therefore not participating securities. As such, separate presentation of basic and diluted earnings per share of Class B common stock under the two-class method has not been presented.

The following weighted-average potentially dilutive securities were evaluated under the treasury stock method for potentially dilutive effects and have been excluded from diluted net loss per share in the periods presented due to their anti-dilutive effect:


			Year Ended December 31, 2020



OpCo Units			213,410,605
Restricted Stock Units			251,285
HSKB II Phantom Units			545,779
LTIP Units			447,456
HoldCo Units			5,083,280
HSKB II Class 1 Units			5,244,286
Total anti-dilutive securities			224,982,691

Leases

12 Months Ended

Dec. 31, 2020

Leases [Abstract]

Leases

Note 15 - Leases

We account for leases in accordance with ASC Topic 842, Leases, which we adopted on January 1, 2019 using the effective date as our date of initial application. Consequently, financial information will not be updated, and the disclosures required under the new standard will not be provided for periods before January 1, 2019. See Note 2 - Basis of Presentation and Summary of Significant Accounting Policies for further detail on our policies surrounding leases.

The Company has operating leases for corporate offices under non-cancelable agreements with various expiration dates. Our leases do not have significant rent escalation, holidays, concessions, material residual value guarantees, material restrictive covenants, or contingent rent provisions. Our leases include both lease (e.g., fixed payments including rent, taxes, and insurance costs) and non-lease components (e.g., common-area or other maintenance costs) which are accounted for as a single lease component.

The Company also has a sublease of a former corporate office. The sublease has a remaining lease term of less than one year. Sublease income, which is recorded as a reduction of rent expense and allocated to the appropriate financial statement line item to arrive at Income from operations in the Consolidated Statements of Operations was immaterial for the years ended December 31, 2020, 2019, and 2018.

The Company’s lease assets and liabilities consist of the following (in millions):


		As of December 31,
(in millions)		2020		2019
Assets
Operating lease right-of-use assets, net	Operating leases	$	32.0	$	36.8

Liabilities
Current portion of operating lease liabilities	Operating leases	$	6.0	$	4.0
Operating lease liabilities, net of current portion	Operating leases	$	33.6	$	40.7

Rent expense was $7.6 million, $6.5 million, and $1.9 million for the years ended December 31, 2020, 2019, and 2018, respectively.

Other information related to leases was as follows:


(in millions)	Year ended December 31,
Supplemental Cash Flow Information	2020		2019
Cash paid for amounts included in the measurement of operating lease liabilities	$	7.3	$	3.4

Lease liabilities arising from obtaining right-of-use assets
From acquisitions	$	0.4	$	28.6
From new and existing lease agreements and modifications	$	(0.9)	$	3.8


	As of December 31,
	2020		2019
Weighted Average Remaining Lease Term (in years)	5.0		8.6

Weighted Average Discount Rate	4.2	%	6.3	%

The table below reconciles the undiscounted future minimum lease payments under non-cancellable leases to the total lease liabilities recognized on the consolidated balance sheets as of December 31, 2020 (in millions):


Year Ending December 31,	Operating Leases
2021	$	7.5
2022	8.3
2023	8.0
2024	12.8
2025	6.1
Thereafter	1.4
Total future minimum lease payments	44.1
less effects of discounting	4.5
Total lease liabilities	$	39.6

Reported as of December 31, 2020
Current portion of operating lease liabilities	$	6.0
Operating lease liabilities, net of current portion	33.6
Total lease liabilities	$	39.6

The table above does not include any legally binding minimum lease payments for leases signed but not yet commenced. As of December 31, 2020, there were no additional operating leases that have not yet commenced.

Short term lease expense and variable lease costs were immaterial for the year ended December 31, 2020. Short term lease commitments were immaterial as of December 31, 2020.

Equity-based Compensation

12 Months Ended

Dec. 31, 2020

Share-based Payment Arrangement [Abstract]

Equity-based Compensation

Note 16 - Equity-based Compensation

2020 Omnibus Incentive Plan - On May 27, 2020, the Board of Directors of the Company (the “Board”) adopted the ZoomInfo Technologies Inc. 2020 Omnibus Incentive Plan (the “Omnibus Plan”). The Omnibus Plan provides for potential grants of the following awards with respect to shares of the Company’s Class A common stock and OpCo Units: (i) incentive stock options qualified as such under U.S. federal income tax laws; (ii) non-qualified stock options or any other form of stock options; (iii) stock appreciation rights; (iv) restricted stock; (v) restricted stock units; (vi) OpCo Units, and (vii) Other equity-based and cash-based incentive awards as determined by the compensation committee of the Board or any properly delegated subcommittee.

The maximum aggregate number of shares of the Company’s Class A common stock that may be issued pursuant to awards under the Omnibus Plan shall not exceed 18,650,000 shares (including OpCo Units or other securities which have been issued under the plan and can be exchanged or converted into shares of Class A common stock) (the “Plan Share Reserve”). The Omnibus Plan also contains a provision that will add an additional number of shares of Class A common stock to the Plan Share Reserve on the first day of each year starting with January 1, 2021, equal to the lesser of (i) the positive difference between (x) 5% of the outstanding Class A Common Stock on the last day of the immediately preceding year, and (y) the Plan Share Reserve on the last day of the immediately preceding year, and (ii) a lower number of shares of Class A Common Stock as may be determined by the Board.

The Company currently has equity-based compensation awards outstanding as follows: Restricted Stock Units, Class A Common Stock Options, HoldCo Units, OpCo Units, Class P Units, and LTIP units. In addition, the Company recognizes equity-based compensation expense from awards granted to employees by noncontrolling interest holders of HoldCo Units and OpCo Units as further described below under HSKB Incentive Units.

In connection with the Reorganization Transactions and the IPO, 1,950,930 Class P Units held directly by employees of the Company or indirectly through DiscoverOrg Management Holdings, LLC, were converted into 1,325,330 unvested HoldCo Units and 576,708 unvested Options based on their respective participation thresholds and the IPO price of $21.00 per share. In connection with this conversion of Class P Units as part of the Reorganization Transactions, the Company incurred incremental grant date fair value of $4.0 million. The HoldCo Units and Options issued upon the conversion remain subject to the same service vesting requirements of the original Class P Units.

Except where indicated otherwise, the equity-based compensation awards described below are subject to time-based service requirements. For grants issued prior to June 2020, the service vesting condition is generally over four years with 50% vesting on the two year anniversary of the grant date of the award and the remainder vesting monthly thereafter. For awards made after May 2020, the service vesting condition is generally over four years with 25% vesting on the one year anniversary of the grant date of the award and 6.25% vesting quarterly thereafter.

Restricted Stock Units

Restricted Stock Unit (“RSU”) activity was as follows during the periods indicated:


	Year Ended December 31, 2020
	Restricted Stock Units	Weighted Average Grant Date Fair Value
Unvested at beginning of period	—	$	—

Granted	1,055,609	$	29.09
Vested	(26,674)	$	21.00
Forfeited	(43,537)	$	28.67
Unvested at end of period	985,398	$	28.84

Class A Common Stock Options

Outstanding options activity was as follows during the period indicated:


	Year Ended December 31, 2020
	Options	Weighted Average Exercise Price
Outstanding at beginning of period	—	$	—
Effect of Reorganization Transactions and IPO	576,708	$	21.00


Forfeited	(24,268)	$	21.00
Outstanding at end of period	552,440	$	21.00

There were no options exercisable at the end of the year. Options have a maximum contractual term of ten years. The aggregate intrinsic value and weighted average remaining contractual terms of Options outstanding and Options exercisable were as follows as of December 31, 2020.


Aggregate intrinsic value (in millions)
Unit Options outstanding	$	15.0
Unit Options exercisable	$	—
Weighted average remaining contractual life (in years)
Unit Options outstanding	9.4 years
Unit Options exercisable	N/A

All Options outstanding were issued at the time of the IPO during 2020. No additional options have been issued to date. The fair value of Class A stock options granted at the time of the IPO was determined using the Black-Scholes option pricing model with the following assumption ranges and fair value per unit:


			Year Ended December 31, 2020
Volatility			39.0% to 39.3%
Expected life			5.6 to 5.9 years
Risk-free rate			0.5%
Fair value per unit			$21.00

We estimated the future stock price volatility based on the volatility of a set of publicly traded comparable companies with a look back period consistent with the expected life. The estimated life for the units was based on the expected hold period of private equity owners. The risk-free rate is based on the rate for a U.S. government security with the same estimated life at the time of grant.

HoldCo Units

Unvested HoldCo Unit activity was as follows during the periods indicated:


	Year Ended December 31, 2020
	HoldCo Units	Weighted Average Grant Date Fair Value
Unvested at beginning of period	—	$	—
Effect of Reorganization Transactions and IPO	1,332,239	$	8.98

Vested	(74,207)	$	6.27
Forfeited	(43,927)	$	9.36
Unvested at end of period	1,214,105	$	9.13

OpCo Units

OpCo Unit activity was as follows during the periods indicated:


	Year Ended December 31, 2020			Year Ended December 31, 2019
	OpCo Units	Weighted Average Grant Date Fair Value		OpCo Units
Unvested at beginning of period	228,819	$	1.72	441,681
Effect of Reorganization Transactions and IPO	(6,909)	$	10.48	—

Vested	(162,218)	$	1.72	(118,867)
Forfeited	(59,692)	$	0.68	(93,995)
Unvested at end of period	—	$	—	228,819

Class P Units

Class P Units were issued under both the prior and current LLC agreement of ZoomInfo OpCo. Class P Unit activity was as follows during the periods indicated:


	Year Ended December 31, 2020			Year Ended December 31, 2019	Year Ended December 31, 2018
	Class P Units	Weighted Average Participation Threshold		Class P Units	Class P Units
Unvested at beginning of period	16,893,603	$	6.19	5,716,467	—
Effect of Reorganization Transactions and IPO	(1,950,930)	$	7.01	—	—
Granted	642,500	$	21.00	13,310,663	5,716,467
Vested	(6,357,566)	$	5.05	(280,563)	—
Forfeited	(430,965)	$	6.56	(1,852,964)	—
Unvested at end of period	8,796,642	$	6.59	16,893,603	5,716,467

In September 2019, ZoomInfo OpCo expanded its employee incentive programs under a newly-formed upper tier entity DiscoverOrg Management Holdings, LLC (“Management Holdings”), established to issue Incentive Units to employees of the Company. Through this newly formed upper tier entity, Class P Units were issued by Management Holdings to employees, directors, and consultants or advisors of the Company, and ZoomInfo OpCo issued corresponding Class P Units to Management Holdings. The cancellation or forfeiture of any Management Holdings’ Class P Units automatically results in a cancellation of an equal number of ZoomInfo OpCo’s Class P Units. Management Holdings was subsequently merged with and into ZoomInfo HoldCo in connection with the Reorganization Transactions and IPO. Class P Units issued directly by ZoomInfo OpCo and by Management Holdings are combined in the table above.

The fair value of Class P Units granted was determined using the Black-Scholes option pricing model with the following assumption ranges and fair value per unit:


	Year Ended December 31,
	2020	2019	2018
Risk-free rate	0.5%	1.58% - 2.49%	2.49% - 2.82%
Volatility	39.9%	38.4% - 41.9%	39.1% - 41.2%
Expected life	6.5 - 6.8 years	4 years	4 years
Marketability discount	N/A	(A)	29%
Fair value per unit	$21.00	$5.20 - $14.36	$4.00 - $5.20

(A)In June 2019, the Company began to apply a probability weighted expected return method, where equity values were calculated using an option pricing model under an IPO and non-IPO scenarios and each value was weighted based on estimated probability of occurrence. For common units, an estimated time until a liquidation event of 1.5 - 4.0 years and a marketability discount of 13% - 25% was used, depending on an IPO or non-IPO scenarios. As of December 31, 2019, an 80% weight was applied to an IPO scenario.

We estimated the future stock price volatility based on the volatility of a set of publicly traded comparable companies with a look back period consistent with the expected life. The estimated life for the units was based on the expected holding period of private equity owners. The risk-free rate is based on the rate for a U.S. government security with the same estimated life at the time of grant.

LTIP Units

LTIP Unit activity was as follows during the periods indicated:


	Year Ended December 31, 2020
	LTIP Units	Weighted Average Participation Threshold
Unvested at beginning of period	—	$	—

Granted	47,620	$	21.00


Unvested at end of period	47,620	$	21.00

HSKB Incentive Units

After selling units to TA Associates and funds affiliated with 22C Capital LLC, the founders of the Company contributed membership units of ZoomInfo OpCo into an upper tier entity, HSKB Funds, LLC, which is controlled by the current CEO of the Company (“HSKB Manager”). In connection with the Reorganization Transactions, HSKB was reorganized into HSKB I and HSKB II (together, “HSKB”), with HSKB I owning OpCo Units and HSKB II owning HoldCo Units. HSKB may issue LLC units to employees of the Company (“HSKB Grant”) in the form of Class 1 units and Class 2 units, with a Class 1 unit being exchangeable into one share of Class A Common Stock, and a Class 2 unit equal to any residual interests in HSKB upon liquidation. These awards are recorded in accordance with the measurement and recognition criteria of ASC 718 for awards made to non-employees.

Prior to December 2019, most HSKB Grants were issued with a performance vesting condition wherein the award vests upon the cumulative change of more than 90% of the membership interests in the Company. In December 2019, unvested HSKB Grants were modified to add an alternative vesting condition and modify the forfeiture provisions, wherein 50% of an HSKB Grant will no longer be subject to forfeiture and will be eligible to vest on the later of September 1, 2020 or two years following the award grant date, and 1/48th will no longer be subject to forfeiture and be eligible to vest on the first day of each subsequent month. This additional vesting condition (but not the forfeiture modification) is conditioned upon the ability to exchange the HSKB Units for the Class A Common Stock of the Company after an IPO. This modification affected 142 grantees at the time and resulted in an increase in unrecognized equity-based compensation cost related to the HSKB Grants of approximately $88.4 million. Upon completion of the IPO in June 2020, this performance condition was satisfied and the Company began to recognize compensation cost under these awards on a straight-line basis in the same manner as if the Company had paid cash in lieu of awarding the HSKB Grants, per the requirements of ASC 718.

In 2018, in connection with the Carlyle Investment described above, holders of HSKB Grants received $21.8 million in cash distributions. In addition, HSKB allocated $31.3 million to be paid over three years from 2019 to 2021 if the holder of the HSKB Grant remains employed by the Company as of the payment date. On March 31, 2020, HSKB allocated an additional $5.3 million to be paid out over four years, starting with March 31, 2020, to holders of HSKB Grants who received their grants after the March 2018 Carlyle Investment, subject to the holders continued employment by the Company. During the twelve months ended December 31, 2020, HSKB paid $11.3 million from allocated funds and has $12.2 million remaining that it has allocated to be paid through 2023.

HSKB Phantom Units

In December 2019, HSKB I adopted the HSKB Funds, LLC 2019 Phantom Unit Plan wherein HSKB may grant Phantom Units (“HSKB Phantom Units”) to employees of the Company. HSKB Phantom Units are recorded in accordance with the measurement and recognition criteria of ASC 718 for awards made to non-employees. HSKB Phantom Units represent the economic equivalent of one Class A Common Share in the Company and generally have the same vesting and forfeiture conditions as the modified HSKB Grants (see HSKB Incentive Units above). In connection with the Reorganization Transactions, all HSKB Phantom Units were moved from HSKB I to HSKB II. Within 30 days of the later of the date upon which a Phantom Unit vests and the date that HSKB II is capable of making an exchange of a corresponding ZoomInfo HoldCo Common Unit for Class A Common Stock, HSKB II must settle the HSKB Phantom Unit in exchange for either (1) cash or (2) Class A Common Stock as determined by the HSKB Manager, in each case, equal to the fair market value of such Common Unit at the time of such exchange.

The HSKB Incentive Units and HSKB Phantom Units both have time-based vesting conditions that were conditional upon the completion of an IPO. In addition, there were four Class P Unit grants with vesting that accelerated upon completion of an IPO. As a result, in the quarter ended June 30, 2020, the Company recognized an additional $57.6 million of expense attributable to the service period already elapsed on HSKB Incentive Units and HSKB Phantom Units, plus the acceleration of vesting on select Class P Units. Including this extra charge as a result of completing the IPO, compensation expense incurred from all the equity-based incentive awards described above was the following (in millions):


	Year Ended December 31,
	2020		2019		2018

Cost of service and Operating expenses include equity-based compensation expenses as follows:
Cost of service	$	27.4	$	4.0	$	8.3
Sales and marketing	62.6		11.2		15.8
Research and development	13.6		4.7		1.1
General and administrative	18.0		5.2		7.5
Total equity-based compensation expense	$	121.6	$	25.1	$	32.7

As of December 31, 2020, unamortized equity-based compensation costs related to each equity-based incentive award described above is the following:


($ in millions, periods in years)	Amount		Weighted Average Remaining Service Period
Restricted Stock Units	$	29.2	3.5
Class A Common Stock Options	1.1		2.6
HoldCo Units	7.0		2.5
Class P Units	23.8		2.3
LTIP Units	0.9		3.9
HSKB Incentive Units	55.3		1.7
HSKB Phantom Units	4.4		2.5
Total unamortized equity-based compensation cost	$	121.7

The total intrinsic value of profit interests and options that were exercised during the year ended December 31, 2020 was $50.3 million. The total fair value of all other previously unvested equity-based awards that vested during the year ended December 31, 2020 was $202.5 million.

Segment and Geographic Data

12 Months Ended

Dec. 31, 2020

Segment Reporting [Abstract]

Segment Reporting Disclosure

Note 17 - Segment and Geographic Data

The Company operates as one operating segment. The Company’s chief operating decision maker (“CODM”) is its Chief Executive Officer, who reviews financial information for purposes of making operating decisions, assessing financial performance and allocating resources. The Company’s CODM evaluates financial information on a consolidated basis. As the Company operates as one operating segment, all required segment financial information is found in the consolidated financial statements.

Long-lived assets by geographical region are based on the location of the legal entity that owns the assets. As of December 31, 2020, 2019, and 2018, no significant long-lived assets were held by entities outside of the U.S.

Revenues derived from customers and partners located outside the United States, as determined based on the address provided by our customers and partners, accounted for approximately 9%, 9%, and 7% of total revenue for the years ended December 31, 2020, 2019, and 2018, respectively. Revenue by geographic region is as follows (in millions):


	Year Ended December 31,
	2020		2019		2018
United States	$	433.2	$	267.3	$	134.9
Rest of world	43.0		26.0		9.4
	$	476.2	$	293.3	$	144.3

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8981-108599

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Tax Receivable Agreements	12 Months Ended
Tax Receivable Agreements	Dec. 31, 2020
Tax Receivable Agreements [Abstract]
Tax Receivable Agreements	Note 18 - Tax Receivable Agreements In connection with the Reorganization Transactions and the IPO, the Company entered into (i) the Exchange Tax Receivable Agreement with certain Pre-IPO OpCo Unitholders and (ii) the Reorganization Tax Receivable Agreement with the Pre-IPO Blocker Holders (collectively, the “Tax Receivable Agreements”). These Tax Receivable Agreements provide for the payment by ZoomInfo Technologies Inc. or any member of its affiliated, consolidated, combined, or unitary tax group (collectively, the “ZoomInfo Tax Group”) to such Pre-IPO Owners and certain Pre-IPO HoldCo Unitholders of 85.0% of the benefits, if any, the ZoomInfo Tax Group actually realizes, or is deemed to realize in certain circumstances, as a result of certain tax attributes and benefits covered by the Tax Receivable Agreements. The Exchange Tax Receivable Agreement provides for the payment by members of the ZoomInfo Tax Group to certain Pre-IPO OpCo Unitholders and certain Pre-IPO HoldCo Unitholders of 85.0% of the benefits, if any, that the ZoomInfo Tax Group realizes as a result of (i) the ZoomInfo Tax Group’s allocable share of existing tax basis acquired in this offering and (ii) increases in the ZoomInfo Tax Group’s allocable share of existing tax basis and tax basis adjustments that will increase the tax basis of the tangible and intangible assets of the ZoomInfo Tax Group as a result of sales or exchanges of OpCo Units for shares of Class A common stock after this offering, and certain other tax benefits, including tax benefits attributable to payments under the Exchange Tax Receivable Agreement. The Reorganization Tax Receivable Agreement provides for the payment by ZoomInfo Technologies Inc. to the Pre-IPO Blocker Holders and certain Pre-IPO HoldCo Unitholders of 85.0% of the benefits, if any, that the ZoomInfo Tax Group realizes as a result of the ZoomInfo Tax Group’s utilization of certain tax attributes of the Blocker Companies (including the ZoomInfo Tax Group’s allocable share of existing tax basis acquired in the Reorganization Transactions), and certain other tax benefits, including tax benefits attributable to payments under the Reorganization Tax Receivable Agreement. The Company expects to benefit from the remaining 15.0% of any of cash savings that it realizes. The Company expects to obtain an increase in its share of the tax basis in the net assets of ZoomInfo HoldCo when OpCo Units are exchanged by Pre-IPO OpCo Unitholders. The Company intends to treat any redemptions and exchanges of OpCo Units as direct purchases for U.S. federal income tax purposes. These increases in tax basis may reduce the amounts that it would otherwise pay in the future to various tax authorities. They may also decrease gains (or increase losses) on future dispositions of certain capital assets to the extent tax basis is allocated to those capital assets. As of December 31, 2020, the Company had a liability of $271.0 million related to its projected obligations under the Tax Receivable Agreements in connection with the Reorganization Transactions and OpCo units exchanged. During the year ended December 31, 2020, we recognized a TRA remeasurement gain of $15.7 million within Other (income) expense, net on our Consolidated Statements of Operations.

Income Taxes

12 Months Ended

Dec. 31, 2020

Income Tax Disclosure [Abstract]

Income Taxes

Note 19 - Income Taxes

The provision for income taxes for the years ended December 31, 2020 and 2019 consisted of the following (in millions):


	Year Ended December 31,
	2020		2019		2018
Current tax provision
Federal	$	(1.9)	$	—	$	—
State	(1.3)		(0.5)		(0.1)
Foreign	(3.3)		(0.2)		—
	(6.5)		(0.7)		(0.1)

Deferred tax provision
Federal	(0.9)		5.0		2.0
State	2.7		2.2		1.0
Foreign	—		—		—
	1.8		7.2		3.0

Benefit (expense) from income taxes	$	(4.7)	$	6.5	$	2.9

For the years ended December 31, 2020, 2019, and 2018, the effective income tax rate differs from the U.S. federal statutory income tax rate as explained below:


	Year Ended December 31,
	2020		2019		2018
U.S. federal statutory income tax rate	21.0	%	21.0	%	21.0	%
State and local income taxes, net of federal benefit	(4.2)	%	1.6	%	5.8	%
Foreign taxes	(10.5)	%	—	%	—	%
Income allocable to NCI not subject to tax	(0.2)	%	(14.8)	%	(17.4)	%
Non-deductible stock compensation	(42.1)	%	—	%	—	%
Impact of GAAP basis shifts	(9.1)	%	—	%	—	%
R&D credit	3.2	%	—	%	—	%
Other	(0.3)	%	0.5	%	(0.3)	%
Valuation allowance	27.4	%	(0.6)	%	—	%
Effective income tax rate	(14.8)	%	7.7	%	9.1	%

As of December 31, 2020 and 2019, the components of deferred tax assets and liabilities are as follows (in millions):


	Year Ended December 31,
	2020		2019
Deferred tax assets
Investment in ZoomInfo Holdings LLC	$	649.6	$	—
Net operating loss carryforwards	5.9		4.9
Interest expense carryforward	9.7		7.2
Credit carryforwards	3.1		1.3
Other	—		—
Total deferred tax assets	$	668.3	$	13.4

Deferred tax liabilities
Investment in ZoomInfo Tech LLC	$	22.6	$	94.0
Total deferred tax liabilities	$	22.6	$	94.0

Less valuation allowance	$	(238.3)	$	(2.2)
Net deferred tax asset (liability)	$	407.4	$	(82.8)

We recognize deferred tax assets to the extent we believe, based on available evidence, that it is more likely than not that they will be realized. In making such a determination, we consider all available positive and negative evidence, including future reversals of existing taxable temporary differences, projected future taxable income, tax planning strategies, and recent results of operations. For the year ended December 31, 2020, the Company recorded a valuation allowance on its deferred tax asset associated with the investment in a corporate subsidiary that it does not expect to recognize the benefit from in the foreseeable future. At December 31, 2020, we had U.S. federal tax credit carryforwards of approximately $2.2 million. Our federal tax credits will begin to expire in 2035 if not utilized. At December 31, 2020, we have $3.2 million of state tax net operating losses and $1.2 million of state tax credits. These state tax net operating losses and credits will begin to expire in 2028 if not utilized.

For the year ended December 31, 2020, the Company recorded a valuation allowance on the portion of ZoomInfo Intermediate Holdings LLC’s investment in ZoomInfo Holdings LLC associated with its share of the book-tax difference in RKSI, This portion of the deferred tax asset is not expected to be realized in the foreseeable future. For the year ended December 31, 2019, the Company recorded a valuation allowance on certain state tax attributes that it did not expect to realize. This valuation allowance on the state tax attributes was released in the second quarter of 2020.

Utilization of net operating losses, credit carryforwards, and certain deductions may be subject to a substantial annual limitation due to ownership change limitations provided by the Internal Revenue Code of 1986, as amended, and similar state provisions. The tax benefits related to future utilization of federal and state net operating losses, tax credit carryforwards, and other deferred tax assets may be limited or lost if cumulative changes in ownership exceeds 50% within any three-year period. Additional limitations on the use of these tax attributes could occur in the event of possible disputes arising in examinations from various taxing authorities.

There were no interest and penalties accrued for the years ended December 31, 2020 or 2019. The Company has assessed its tax positions taken and concluded there are no significant uncertain tax positions. The Company has no unrecognized tax benefits as of December 31, 2020 or 2019, that, if recognized, would affect the amount of income tax expense reported.

The Company files returns with the Internal Revenue Service and multiple state jurisdictions, which are subject to examination by the taxing authorities for years 2014 and later. The earlier tax years are subject to examination due to the utilization of net operating losses in recent tax years. None of our federal or state income tax return are currently under examination by federal or state taxing authorities.

Revenue from Contract with Customer [Abstract]

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References + Details

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	Note 20 - Subsequent Events Senior Unsecured Notes Offering In February 2021, ZoomInfo Technologies LLC and ZoomInfo Finance Corp., indirect subsidiaries of ZoomInfo Technologies Inc., completed an offering of $350.0 million in aggregate principal amount of 3.875% senior notes due 2029. We used all of the net proceeds, along with cash on hand, to prepay $356.4 million aggregate principal amount of our first lien term loans outstanding under the first lien credit agreement (the “Debt Prepayment”). Following the Debt Prepayment, as of February 2, 2021, $400.0 million aggregate principal amount of first lien term loans were outstanding under our first lien credit agreement. First Lien Credit Agreement Amendment In February 2021, ZoomInfo LLC entered into an amendment to our first lien credit agreement, pursuant to which, among other things, there will be (i) an increase in the aggregate commitments to $250.0 million under our first lien revolving credit facility, (ii) the addition of the ZoomInfo Technologies LLC as a co-borrower, (iii) the repricing of our first lien term loan facility maturing in February 2026 and first lien revolving credit facility, and (iv) an extension of the maturity date of our first lien revolving credit facility to November 2025. Office Space Lease Agreement In January 2021, we entered into a 15-year non-cancelable agreement to lease office space in Waltham, Massachusetts, which will replace our existing office space in Waltham, Massachusetts. The lease will commence in 2021 with space of 98,104 square feet, with plans to expand to 226,244 square feet through 2027. First year cash rent is expected to be $31.00 per square foot ignoring certain lease incentives and future rent increases.

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in conformity with U.S. GAAP requires us to make certain estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the consolidated financial statements, as well as the reported amounts of revenue and expenses during the reporting period. These estimates relate to, but are not limited to, revenue recognition, allowance for doubtful accounts, contingencies, valuation and useful lives of long-lived assets, fair value of tangible and intangible assets acquired in business combinations, equity-based compensation, and income taxes, among other things. We base these estimates on historical and anticipated results, trends, and other assumptions with respect to future events that we believe are reasonable and evaluate our estimates on an ongoing basis. Given that estimates and judgments are required, actual results may differ from our estimates and such differences could be material to our consolidated financial position and results of operations.
Consolidation	Organization ZoomInfo Technologies Inc. was formed on November 14, 2019 with no operating assets or operations as a Delaware corporation for the purposes of facilitating an initial public offering (“IPO”) and other related transactions in order to carry on the business of ZoomInfo Holdings LLC (“ZoomInfo OpCo”) (formerly known as DiscoverOrg Holdings, LLC), a Delaware limited liability company. Following consummation of the Reorganization Transactions (as described below), ZoomInfo OpCo became a direct subsidiary of ZoomInfo Intermediate Holdings LLC (“ZoomInfo HoldCo”), a Delaware limited liability company and an indirect subsidiary of ZoomInfo Technologies Inc. Principles of Consolidation The consolidated financial statements include the accounts of ZoomInfo Technologies Inc. and its subsidiaries that it controls due to ownership of a majority voting interest or pursuant to variable interest entity (“VIE”) accounting guidance. All intercompany transactions and balances have been eliminated in consolidation. ZoomInfo Technologies Inc., through our intermediate holding company ZoomInfo HoldCo, owns a minority economic interest in, but operates and has the power to control all of the businesses and affairs of, ZoomInfo OpCo. ZoomInfo Technologies Inc. has the obligation to absorb losses of, and receive benefits from, ZoomInfo OpCo, that could be significant. We determined that, as a result of the Reorganization Transactions described above, ZoomInfo OpCo is a VIE. Further, ZoomInfo Technologies Inc. has no contractual requirement to provide financial support to ZoomInfo OpCo and, for the year ended December 31, 2020, ZoomInfo Technologies Inc. did not provide support to ZoomInfo OpCo it was not contractually required to provide. Accordingly, ZoomInfo Technologies Inc. is considered the primary beneficiary and consolidates ZoomInfo OpCo in the Company’s consolidated financial statements.
Reclassification, Comparability Adjustment	We refer to the Reclassification, together with the Blocker Mergers and the ZoomInfo HoldCo Contributions, as the “Reorganization Transactions.” Following the Reorganization Transactions, ZoomInfo Technologies Inc. became a holding company, with its sole material asset being a controlling equity interest in ZoomInfo HoldCo, which became a holding company with its sole material asset being a controlling equity interest in ZoomInfo OpCo. ZoomInfo Technologies Inc. will operate and control all of the business and affairs, and consolidate the financial results, of ZoomInfo OpCo through ZoomInfo HoldCo and, through ZoomInfo OpCo and its subsidiaries, conduct our business. Accordingly, ZoomInfo Technologies Inc. consolidates the financial results of ZoomInfo HoldCo, and therefore ZoomInfo OpCo, and reports the non-controlling interests of the Pre-IPO HoldCo Units and Pre-IPO OpCo Units on its consolidated financial statements. The Reorganization Transactions were accounted for consistent with a combination of entities under common control. As a result, the financial reports filed with the SEC by the Company subsequent to the Reorganization Transactions are prepared “as if” ZoomInfo OpCo is the accounting predecessor of the Company. The historical operations of ZoomInfo OpCo are deemed to be those of the Company. Thus, the financial statements included in this report reflect (i) the historical operating results of ZoomInfo OpCo prior to the Reorganization Transactions; (ii) the consolidated results of ZoomInfo Technologies Inc. and ZoomInfo OpCo following the Reorganization Transactions; (iii) the assets and liabilities of ZoomInfo OpCo and ZoomInfo Technologies Inc. at their historical cost; and (iv) ZoomInfo Technologies Inc. equity structure for all periods presented. No step-up basis of intangible assets or goodwill was recorded. ZoomInfo OpCo has been determined to be our predecessor for accounting purposes and, accordingly, the consolidated financial statements for periods prior the Reorganization Transactions have been adjusted to combine the previously separate entities for presentation purposes. The Company’s financial position, performance and cash flows effectively represent those of ZoomInfo OpCo as of and for all periods presented.
Revenue Recognition	Revenue Recognition The company derives revenue primarily from subscription services. Our subscription services consist of our SaaS applications and related access to our databases. Subscription contracts are generally based on the number of users that access our applications, the level of functionality that they can access, and the amount of data that a customer integrates with their systems. Our subscriptions contracts typically have a term of 1 to 3 years and are non-cancellable. We typically bill for services annually, semi-annually, or quarterly in advance of delivery. The Company accounts for revenue contracts with customers through the following steps: (1)identify the contract with a customer; (2)identify the performance obligations in the contract; (3)determine the transaction price; (4)allocate the transaction price; and (5)recognize revenue when or as the Company satisfies a performance obligation. We recognize revenue for subscription contracts on a ratable basis over the contract term based on the number of calendar days in each period, beginning on the date that our service is made available to the customer. Unearned revenue results from revenue amounts billed to customers in advance or cash received from customers in advance of the satisfaction of performance obligations. Determining the transaction price often involves judgments and estimates that can have a significant impact on the timing and amount of revenue reported. At times, the Company may adjust billing under a contract based on the addition of services or other circumstances, which are accounted for as variable consideration. The Company estimates these amounts based on historical experience and reduces revenue recognized. Deferred Commissions Certain sales commissions earned by our sales force are considered incremental and recoverable costs of obtaining a contract with a customer. These sales commissions for initial contracts are capitalized and current amounts are included in Deferred costs and noncurrent amounts are included in Deferred costs, net of current portion in our Consolidated Balance Sheets. Deferred sales commissions are amortized on a straight-line basis over the estimated period of benefit from the customer relationship which we have determined to be 1 and 3 years for renewals and new clients, respectively. We determined the period of benefit by taking into consideration our customer contracts, our technology, and other factors. Amortization expense is included in Sales and marketing expense on the Consolidated Statements of Operations. Commissions payable at December 31, 2020 were $25.6 million, of which the current portion of $23.3 million was included in Accrued expenses and other current liabilities in our Consolidated Balance Sheets, and the long-term portion of $2.3 million was included in Other long-term liabilities in our Consolidated Balance Sheets. The current portion of commissions payable included in Accrued expenses and other current liabilities in our Consolidated Balance Sheets at December 31, 2019 was $9.4 million, and the long-term portion was immaterial. Certain commissions are not capitalized as they do not represent incremental costs of obtaining a contract. Such commissions are expensed as incurred. The Company capitalized $44.9 million and $25.3 million of costs to obtain revenue contracts and amortized $25.1 million and $8.6 million to sales and marketing expense for the years ended December 31, 2020 and 2019, respectively. Costs capitalized to obtain a revenue contract, net on the Company's consolidated balance sheets totaled $40.3 million and $20.5 million at December 31, 2020 and 2019, respectively. There were no impairments of costs to obtain revenue contracts in the years ended December 31, 2020 and 2019. Unearned Revenue Unearned revenue consists of customer payments and billings in advance of revenue being recognized from our subscription services. Unearned revenue that is anticipated to be recognized within the next 12 months is recorded as Unearned revenue, current portion and the remaining portion is included in Unearned revenue, net of current portion in our consolidated balance sheets.
Cash, Cash Equivalents, and Short-term Investments	Cash, Cash Equivalents, and Short-term Investments Cash equivalents consist of highly liquid marketable debt securities with remaining maturities of three months or less at the date of purchase. We classify our investments in marketable securities as “available-for-sale.” We carry these investments at fair value, based on quoted market prices or other readily available market information. Unrealized gains and losses, net of taxes, are included in accumulated other comprehensive income, which is reflected as a separate component of stockholders’ equity in our Consolidated Balance Sheets. Gains and losses are determined using the specific identification method and recognized when realized in our Consolidated Statements of Operations. If we were to determine that an other-than-temporary decline in fair value has occurred, the amount of the decline related to a credit loss will be recognized in income.
Fair Value Measurements	Fair Value Measurements The Company measures assets and liabilities at fair value based on an expected exit price, which represents the amount that would be received on the sale of an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value may be based on assumptions that market participants would use in pricing an asset or liability. The authoritative guidance on fair value measurements establishes a consistent framework for measuring fair value on either a recurring or nonrecurring basis whereby inputs, used in valuation techniques, are assigned a hierarchical level. The following are the hierarchical levels of inputs to measure fair value: Level 1 - Observable inputs that reflect unadjusted quoted prices in active markets for identical assets or liabilities Level 2 - Other inputs that are directly or indirectly observable in the marketplace Level 3 - Unobservable inputs that are supported by little or no market activity, including the Company’s own assumptions in determining fair value The inputs or methodology used for valuing financial assets and liabilities are not necessarily an indication of the risk associated with investing in them.
Concentrations of Credit Risk and Significant Customers	Concentrations of Credit Risk and Significant Customers Financial instruments that potentially subject us to concentrations of credit risk consist principally of cash and cash equivalents, short-term investments, and accounts receivable. The Company holds cash at major financial institutions that often exceed Federal Deposit Insurance Corporation (“FDIC”) insured limits. The Company manages its credit risk associated with cash concentrations by concentrating its cash deposits in high-quality financial institutions and by periodically evaluating the credit quality of the primary financial institutions holding such deposits. The carrying value of cash approximates fair value. Our investment portfolio is comprised of highly rated securities with a weighted-average maturity of less than 12 months in accordance with our investment policy which seeks to preserve principal and maintain a high degree of liquidity. Historically, the Company has not experienced any losses due to such cash concentrations. The Company does not have any off-balance-sheet credit exposure related to its customers. Concentrations of credit risk with respect to accounts receivable and revenue are limited due to a large, diverse customer base. We do not require collateral from clients. We maintain an allowance for doubtful accounts based upon the expected collectability of accounts receivable. The Company performs ongoing credit evaluations of its customers and maintains allowances for possible losses, which, when realized, have been within the range of management’s expectations.
Accounts Receivable and Contract Assets	Accounts Receivable and Contract Assets Accounts receivable is comprised of invoices of revenue, net of allowance for doubtful accounts and does not bear interest. We consider receivables past due based on the contractual payment terms. Management’s evaluation of the adequacy of the allowance for doubtful accounts considers historical collection experience, changes in customer payment profiles, the aging of receivable balances, as well as current economic conditions, all of which may impact a customer’s ability to pay. Account balances are written-off against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote. The Company does not have significant bad debt experience with customers, and therefore, the allowance for doubtful accounts is immaterial as of December 31, 2020 and December 31, 2019. No single customer accounted for 10% or more of our revenue for the years ended December 31, 2020, 2019, and 2018 or accounted for more than 10% of accounts receivable as of December 31, 2020 and December 31, 2019. The assessment of variable consideration to be constrained is based on estimates, and actual consideration may vary from current estimates. As adjustments to these estimates become necessary, they are reported in earnings in the periods in which they become known. Changes in variable consideration are recorded as a component of net revenue. Contract assets represent a contractual right to consideration in the future. Contract assets are generated when contractual billing schedules differ from revenue recognition timing.
Property and Equipment, Net	Property and Equipment, Net Property and equipment is stated at cost, net of accumulated depreciation and amortization. All repairs and maintenance costs are expensed as incurred. Depreciation and amortization costs are expensed on a straight-line basis over the lesser of the estimated useful life of the asset or the remainder of the lease term for leasehold improvements. Qualifying internal use software costs incurred during the application development stage, which consist primarily of internal product development costs, outside services, and purchased software license costs, are capitalized and amortized over the estimated useful life of the asset. Estimated useful lives range from 3 years to 10 years.
Advertising and Promotional Expenses	Advertising and Promotional Expenses The Company expenses advertising costs as incurred. Advertising expenses of $13.2 million, $9.8 million, and $2.5 million were recorded for the years ended December 31, 2020, 2019, and 2018. Advertising expenses are included in Sales and marketing expenses on the Consolidated Statements of Operations.
Research and Development	Research and Development Research and development expenses consist primarily of compensation expense for our employees, including employee benefits, certain IT program expenses, facilities and related overhead costs. We continue to focus our research and development efforts on developing new products, adding new features and services, integrating acquired technologies, and increasing functionality. Expenditures for software developed or obtained for internal use are capitalized and amortized over a four-year period on a straight-line basis.
Restructuring and Transaction-Related Expenses	Restructuring and Transaction-Related Expenses The Company defines restructuring and transaction related expenses as costs directly associated with acquisition or disposal activities. Such costs include employee severance and termination benefits, contract termination fees and penalties, and other exit or disposal costs. In general, the Company records involuntary employee-related exit and disposal costs when there is a substantive plan for employee severance and related costs that are probable and estimable. For one-time termination benefits for key members of management (i.e., no substantive plan), transaction related bonuses and employee retention costs, expense is recorded when the employees are entitled to receive such benefits and the amount can be reasonably estimated. Contract termination fees and penalties and other exit and disposal costs are generally recorded when incurred.
Business Combinations	Business Combinations We allocate purchase consideration to the tangible assets acquired, liabilities assumed and intangible assets acquired based on their estimated fair values. The purchase price is determined based on the fair value of the assets transferred, liabilities assumed and equity interests issued, after considering any transactions that are separate from the business combination. The fair value of equity issued as part of a business combination is determined based on grant date stock price of the Company. The excess of fair value of purchase consideration over the fair values of the identifiable assets and liabilities is recorded as goodwill. Such valuations require management to make significant estimates and assumptions, especially with respect to intangible assets and contingent liabilities. Significant estimates in valuing certain intangible assets include, but are not limited to, future expected cash flows from acquired customer bases, acquired technology and acquired trade names, useful lives, royalty rates, and discount rates. The estimates are inherently uncertain and subject to revision as additional information is obtained during the measurement period for an acquisition, which may last up to one year from the acquisition date. During the measurement period, we may record adjustments to the fair value of tangible and intangible assets acquired and liabilities assumed, with a corresponding offset to goodwill. After the conclusion of the measurement period or the final determination of the fair value of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded to earnings. In addition, uncertain tax positions and tax-related valuation allowances assumed in connection with a business combination are initially estimated as of the acquisition date. We reevaluate these items based upon the facts and circumstances that existed as of the acquisition date, with any revisions to our preliminary estimates being recorded to goodwill, provided that the timing is within the measurement period. Subsequent to the measurement period, changes to uncertain tax positions and tax-related valuation allowances will be recorded to earnings.
Goodwill and Acquired Intangible Assets	Goodwill and Acquired Intangible Assets Goodwill is calculated as the excess of the purchase consideration paid in a business combination over the fair value of the assets acquired less liabilities assumed. Goodwill is not amortized and is tested for impairment at least annually or when events and circumstances indicate that fair value of a reporting unit may be below its carrying value. The company has one reporting unit. We first assess qualitative factors to evaluate whether it is more likely than not that the fair value of a reporting unit is less than the carrying amount or elect to bypass such assessment. If it is determined that it is more likely than not that the fair value of the reporting unit is less than its carrying value, or we elect to bypass the qualitative assessment, we perform a quantitative test by determining the fair value of the reporting unit. If the carrying value of the reporting unit exceeds the fair value, then an impairment loss is recognized for the difference. Acquired technology, customer lists, trade names or brand portfolios, and other intangible assets are related to previous acquisitions (see Note 7). Acquired intangible assets are amortized on a straight-line basis over the estimated period over which we expect to realize economic value related to the intangible asset. The amortization periods range from 2 years to 15 years. Any costs incurred to renew or extend the life of an intangible or long-lived asset are reviewed for capitalization. Indefinite-lived intangible assets consist primarily of brand portfolios acquired from Pre-Acquisition ZI and represent costs paid to legally register phrases and graphic designs that identify and distinguish products sold by the Company. Brand portfolios are not amortized, rather potential impairment is considered on an annual basis in the fourth quarter, or more frequently upon the occurrence of a triggering event, when circumstances indicate that the book value of trademarks are greater than their fair value. The Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of the indefinite-lived intangible asset is less than the carrying value as a basis to determine whether further impairment testing is necessary.
Impairment of Long-lived Assets	Impairment of Long-lived AssetsLong-lived assets, such as property and equipment and acquired intangible assets, are reviewed for impairment whenever events or circumstances indicate that the carrying value of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to the undiscounted future cash flows expected to be generated by the asset or group of assets. If the carrying amount of the asset exceeds the estimated future cash flows, an impairment charge is recognized in the amount by which the carrying amount of the asset exceeds the estimated future cash flows of the asset.
Leases	Leases We determine if an arrangement is or contains a lease at contract inception. Determining if a contract contains a lease requires judgement. In certain of our lease arrangements, primarily those related to our data center arrangements, judgment is required in determining if a contract contains a lease. For these arrangements, there is judgment in evaluating if the arrangement involves an identified asset that is physically distinct or whether we have the right to substantially all of the capacity of an identified asset that is not physically distinct. In arrangements that involve an identified asset, there is also judgment in evaluating if we have the right to direct the use of that asset. We do not have any finance leases. Operating leases are recorded in our Consolidated Balance Sheets. Right-of-use assets and lease liabilities are measured at the lease commencement date based on the present value of the fixed minimum remaining lease payments over the lease term, determined using the discount rate for the lease at the commencement date. Because the rate implicit in our leases is not readily determinable, we use our incremental borrowing rate as the discount rate, which approximates the interest rate at which we could borrow on a collateralized basis with similar terms and payments and in similar economic environments. Some leases include options to extend or options to terminate the lease prior to the stated lease expiration. Optional periods to extend a lease, including by not exercising a termination option, are included in the lease term when it is reasonably certain that the option will be exercised (or not exercised in the case of termination options). Operating lease expense is recognized on a straight-line basis over the lease term. We account for lease and non-lease components, principally common area maintenance for our facilities leases, as a single lease component. Short term leases, defined as leases having an original lease term less than or equal to one year, are excluded from our right-of-use assets and liabilities.
Debt Issuance Costs	Debt Issuance Costs Costs incurred in connection with the issuance of long-term debt are deferred and amortized as interest expense over the terms of the related debt using the effective interest method for term debt and on a straight-line basis for revolving debt. To the extent that the debt is outstanding, these amounts are reflected in the consolidated balance sheets as direct deductions from a combination of current and long-term portions of debt. Upon a refinancing or amendment, previously-capitalized debt issuance costs are expensed and included in loss on extinguishment of debt, if the Company determines that there has been a substantial modification of the related debt. If the Company determines that there has not been a substantial modification of the related debt, any previously-capitalized debt issuance costs are amortized as interest expense over the term of the new debt instrument. The company performs assessments of debt modifications at a lender-specific level for all syndicated financing arrangements.
Tax Receivable Agreements	Tax Receivable Agreements In connection with our IPO, we entered into two Tax Receivable Agreements ("TRAs") with certain non-controlling interest owners (the “TRA Holders”). The TRAs generally provide for payment by the Company to the TRA Holders of 85% of the net cash savings, if any, in U.S. federal, state and local income tax or franchise tax that the Company actually realizes or is deemed to realize in certain circumstances. The Company will retain the benefit of the remaining 15% of these net cash savings. Amounts payable under the TRA are accrued by a charge to income when it is probable that a liability has been incurred and the amount is estimable. TRA related liabilities are classified as current or noncurrent based on the expected date of payment and are included in the Company’s Consolidated Balance Sheets under the captions Current portion of tax receivable agreements liability and Tax receivable agreements liability, net of current portion, respectively. Subsequent changes to the measurement of the TRA liability are recognized in the statements of income as a component of other income (expense), net. See Note 18 for further details on the TRA liability.
Income Taxes	Income Taxes ZoomInfo Technologies Inc. is a corporation and is subject to U.S. federal as well as state income tax related to its ownership percentage in ZoomInfo Holdings LLC. ZoomInfo Holdings LLC is a limited liability company treated as a partnership for U.S. federal income tax purposes and files a U.S. Return of Partnership Income. Consequently, the members of ZoomInfo Holdings are taxed individually on their share of earnings for U.S. federal and state income tax purposes. However, ZoomInfo Holdings is subject to the Texas Margins Tax. Additionally, our operations in Israel are subject to local country income taxes. See Note 19 for additional information regarding income taxes. Deferred taxes are recorded using the asset and liability method, whereby tax assets and liabilities are determined based on the differences between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. We regularly evaluate the valuation allowances established for deferred tax assets for which future realization is uncertain. In assessing the realizability of deferred tax assets, we consider both positive and negative evidence, including scheduled reversals of deferred tax assets and liabilities, projected future taxable income, tax planning strategies and results of recent operations. If, based on the weight of available evidence, it is more likely than not that the deferred tax assets will not be realized, a valuation allowance is recorded.
Equity-Based Compensation Expense	Equity-Based Compensation Expense The Company periodically grants incentive units to employees and non-employees, which generally vest over a four-year period. Incentive units may be in the form of various equity-based awards such as restricted stock and restricted stock units, Class A stock options, and awards in one of the Company’s subsidiary partnerships which are typically in the form of profits interests. Profits interests are an interest in the increase in the value of the entity over a participation threshold. Prior to the IPO, the participation threshold was based on the valuation determined by the Board of Managers of OpCo Units on or around the grant date. Subsequent to the IPO, the participation threshold is determined by reference to the closing price of our Class A Common Stock from the preceding trading day. The holders of profits interests have the right to participate in distributions of profits only in excess of the participation threshold. Compensation expense for incentive units is measured at the estimated fair value of the incentive units and is included as compensation expense over the vesting period during which an employee provides service in exchange for the award. The Company uses a Black-Scholes option pricing model to determine the fair value of stock options and profits interests, as profits interests have certain economic similarities to options. The Black-Scholes option pricing model includes various assumptions, including the expected life of incentive units, the expected volatility, and the expected risk-free interest rate. These assumptions reflect the Company’s best estimates, but they involve inherent uncertainties based on market conditions generally outside the control of the Company. As a result, if other assumptions are used, compensation cost could be materially impacted. The Company measures employee, non-employee, and board of director equity-based compensation on the grant date fair value basis. Equity-based compensation expense is recognized over the requisite service period of the awards. For equity awards that have a performance condition, the Company recognizes compensation expense based on its assessment of the probability that the performance condition will be achieved. The Company classifies equity-based compensation expense in its Consolidated Statements of Operations in the same manner in which the award recipient’s salary and related costs are classified or in which the award recipient’s service payments are classified.
Employee Retirement Benefits	Employee Retirement Benefits The Company has a 401(k) plan that all eligible employees can contribute pre-tax and after-tax (Roth) to up to the maximum annual amount established by the Internal Revenue Code. In 2020, the Company matched 50% of the employee’s contribution to the 401(k) plan up to the first 7% of their contribution. Previously, the Company matched 35% of the employee's contribution to the 401(k) plan up to the first 6% of their contribution. Matching contributions made by the Company were approximately $3.0 million, $1.4 million, and $0.6 million for the years ended December 31, 2020, 2019, and 2018, respectively. Matching contributions will be fully vested after three years of service. Employee contributions are 100% vested immediately. The increased match percentage combined with increased headcount contributed to the increase in the Company’s matching contribution in 2020. The acquisition of Zoom Information, Inc. contributed to the increase in the Company's matching contribution in 2019.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Recent Accounting Pronouncements Not Yet Adopted In March 2020, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2020-04, which provides optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships, and other transactions that reference the London Interbank Offered Rate ("LIBOR") or another reference rate expected to be discontinued because of reference rate reform, if certain criteria are met. The standard applies to contract modifications that replace a reference rate affected by reference rate reform and contemporaneous modifications of other contract terms related to the replacement of the reference rate. Further, the standard provides exceptions to certain guidance in ASC 815, Derivatives and Hedging, related to changes to the critical terms of a hedging relationship due to reference rate reform and provides optional expedients for fair value, cash flow, and net investment hedging relationships for which the component excluded from the assessment of hedge effectiveness is affected by reference rate reform. The standard is effective for us as of March 12, 2020 through December 31, 2022, and we may elect to apply the provisions of the standard as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020 up to the date that the financial statements are available to be issued. Once elected, the provisions of the standard must be applied prospectively for all similar eligible contract modifications other than derivatives, which may be applied at a hedging relationship level. The standard would apply to our existing variable rate financing and derivatives designated as hedges if elected in the future. The Company continues to evaluate the impact of the guidance and may apply other elections as applicable as additional changes in the market occur. Recently Adopted Accounting Pronouncements In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which requires the measurement and recognition of expected credit losses for financial assets held at amortized cost. It also eliminates the concept of other-than-temporary impairment and requires credit losses related to available-for-sale debt securities to be recorded through an allowance for credit losses rather than as a reduction in the amortized cost basis of the securities. These changes will result in more timely recognition of credit losses. The guidance is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. The Company adopted ASU 2016-13 and ASU 2019-05 effective January 1, 2020. The adoption of this guidance was on a modified retrospective basis and did not have a material impact on the Company's consolidated financial statements. In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820), which amends disclosure requirements for fair value measurements by requiring new disclosures, modifying existing requirements, and eliminating others. The amendments are the result of a broader disclosure project, which aims to improve the effectiveness of disclosures. ASU No. 2018-13 is effective for fiscal years beginning after December 15, 2019 and interim periods within those fiscal years. The Company adopted ASU 2018-13 on January 1, 2020, and the adoption did not have a material effect on the Company’s financial statements or disclosures.

Revenue from Contracts with Customers (Tables)

12 Months Ended

Dec. 31, 2020

Revenue Disaggregated by Service Offering

Revenue comprised the following service offerings (in millions):


	Year Ended December 31,
	2020		2019		2018
Subscription	$	471.2	$	289.3	$	143.4
Usage-based	5.0		4.0		0.9
Total revenue	$	476.2	$	293.3	$	144.3

Revenue by geographic region is as follows (in millions):


	Year Ended December 31,
	2020		2019		2018
United States	$	433.2	$	267.3	$	134.9
Rest of world	43.0		26.0		9.4
	$	476.2	$	293.3	$	144.3

Remaining Performance Obligations

The remaining performance obligations consisted of the following (in millions):


	Current		Noncurrent		Total
As of December 31, 2020	$	432.2	$	126.8	$	559.0
As of December 31, 2019	$	266.6	$	74.1	$	340.7

Business Combinations (Tables)

12 Months Ended

Dec. 31, 2020

Business Acquisition [Line Items]

Acquisition Date Fair Value of Consideration Transferred

The acquisition date fair value of the total consideration transferred was comprised of the following (in millions):


Cash	$	61.6
Purchase consideration liabilities	7.2
Issuance of 67,075 Class A shares	2.9
Total Purchase Consideration	$	71.7

Fair Values of Assets Acquired and Liabilities Assumed

The following table summarizes the aggregate fair values of the assets acquired and liabilities assumed, as of the date of the acquisitions (in millions):



Cash and cash equivalents	$	2.9
Accounts receivable	3.0
Prepaid expenses and other assets	1.1
Intangible assets	37.0
Accounts payable and other	(2.2)
Unearned revenue	(3.4)
Total identifiable net assets acquired	38.4
Goodwill	33.3
Total consideration	71.7
Issuance of 67,075 Class A shares	(2.9)
Cash acquired	(2.9)
Cash paid for acquisitions	$	65.9

Components of Identifiable Indefinite-Lived Intangible Assets Acquired

The following table sets forth the components of identifiable intangible assets acquired and the estimated useful lives as of the dates of acquisition (in millions):


	Fair Value		Weighted Average Useful Life
Brand portfolio	$	2.0	6.5 years
Developed technology	29.6		7.0 years
Database	2.0		4.0 years
Customer relationships	3.4		9.3 years
Total intangible assets	$	37.0

Komiko

Business Acquisition [Line Items]

Acquisition Date Fair Value of Consideration Transferred

The acquisition date fair value of the consideration transferred for Komiko was $8.5 million, comprised of the following (in millions):


Cash	$	8.3
Contingent earnout payments	0.2
Total purchase consideration	$	8.5

Fair Values of Assets Acquired and Liabilities Assumed

The following table summarizes the fair values of the assets acquired and liabilities assumed, as of the date of acquisition (in millions):



Developed technology	$	2.4

Unearned revenue	(0.2)
Total identifiable net assets acquired	2.2
Goodwill	6.3
Total consideration	8.5
Contingent Earnout Payments	(0.2)
Cash paid for acquisitions	$	8.3

Pre-Acquisition ZI

Business Acquisition [Line Items]

Acquisition Date Fair Value of Consideration Transferred


Cash consideration	$	667.3
Liability for equity award settlement	25.2
Portion of replacement awards attributable to pre-acquisition service	27.9
Other purchase consideration liabilities	6.5
Deferred consideration	33.2
Total purchase consideration	$	760.1

Fair Values of Assets Acquired and Liabilities Assumed

The following table summarizes the fair values of the assets acquired and liabilities assumed, as of the date of acquisition (in millions):


Cash, cash equivalents, and restricted cash	$	12.1
Accounts receivable	22.1
Prepaid expenses and other assets	4.2
Property and equipment	6.3
Operating lease right-of-use assets	28.6
Intangible assets	322.0
Accounts payable and other liabilities	(6.8)
Lease liabilities	(28.6)
Deferred tax liabilities	(80.1)
Unearned revenue	(34.5)
Total identifiable net assets acquired	245.3
Goodwill	514.8
Total consideration	760.1
Deferred consideration	(33.2)
Cash acquired	(12.1)
Cash paid for acquisitions, net of cash acquired	$	714.8

Components of Identifiable Indefinite-Lived Intangible Assets Acquired

The following table sets forth the components of identifiable intangible assets acquired and the estimated useful lives as of the date of acquisition (in millions):


	Fair Value		Weighted Average Useful Life
Brand portfolio	$	33.0	Indefinite
Developed technology	116.0		5.8 years
Customer relationships	173.0		15.0 years
Total intangible assets	$	322.0

Pro Forma Revenue and Earnings of Acquisition

The unaudited pro forma revenue and earnings of the combined entity had the acquisition date been January 1, 2018, are as follows:


	Revenue	Loss Before Income Taxes
Supplemental pro forma from January 1, 2019 to December 31, 2019	334.1	(48.0)
Supplemental pro forma from January 1, 2018 to December 31, 2018	205.6	(146.4)

Cash, Cash Equivalents, and Short-term Investments (Tables)

12 Months Ended

Dec. 31, 2020

Cash and Cash Equivalents [Abstract]

Schedule of Cash and Cash Equivalents

Cash, cash equivalents, and short-term investments consisted of the following as of December 31, 2020:


(in millions)	Amortized Cost		Unrealized Gains		Unrealized Losses		Estimated Fair Value
Current assets:
Cash	$	100.4	$	—	$	—	$	100.4
Cash equivalents:
Corporate debt securities	72.0		—		—		72.0
Money market mutual funds	91.0		—		—		91.0
U.S. Treasury securities	6.4		—		—		6.4
Total cash equivalents	169.4		—		—		169.4
Total cash and cash equivalents	269.8		—		—		269.8
Short-term investments:
Corporate debt securities	24.0		—		—		24.0
U.S. Treasury securities	2.0		—		—		2.0
U.S. government agency securities	4.6		—		—		4.6
Total short-term investments	30.6		—		—		30.6
Total cash, cash equivalents, and short-term investments	$	300.4	$	—	$	—	$	300.4

Schedule of Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value

The following table summarizes the fair value of our available-for-sale securities that have been in a continuous unrealized loss position as of December 31, 2020:

December 31, 2020

December 31, 2019

(in millions)

Less Than Twelve Months

More Than Twelve Months

Less Than Twelve Months

More Than Twelve Months

Corporate debt securities

$78.0

N/A

Schedule of Short-term Securities

The following table summarizes the cost and estimated fair value of the securities classified as short-term investments based on stated effective maturities as of December 31, 2020:


(in millions)	Amortized Cost	Estimated Fair Value
Due within one year	$30.6	$30.6
Total	$30.6	$30.6

Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2020

Property, Plant and Equipment [Abstract]

Property and Equipment

The Company’s fixed assets consist of the following (in millions):


	December 31,
	2020		2019
Computer equipment	$	7.4	$	4.1
Furniture and fixtures	5.4		4.8
Leasehold improvements	7.0		5.0
Internal use developed software	28.0		19.7
Construction in progress	2.9		0.9
	50.7		34.5
Less: accumulated depreciation	(19.7)		(11.2)
Property and equipment, net	$	31.0	$	23.3

Goodwill and Acquired Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

Intangible assets consisted of the following as of December 31, 2020 (in millions):



	Gross Carrying Amount		Accumulated Amortization		Net		Weighted Average Amortization Period in Years
Intangible assets subject to amortization:
Customer relationships	$	272.0	$	(52.6)	$	219.4	14.9
Acquired technology	195.5		(85.8)		109.7		6.3
Brand portfolio	6.6		(3.0)		3.6		8
Net intangible assets subject to amortization	$	474.1	$	(141.4)	$	332.7

Intangible assets not subject to amortization
Pre-Acquisition ZI brand portfolio					$	33.0
Goodwill					$	1,000.1

Intangible assets consisted of the following as of December 31, 2019 (in millions):



	Gross Carrying Amount		Accumulated Amortization		Net		Weighted Average Amortization Period in Years
Intangible assets subject to amortization:
Customer relationships	$	268.6	$	(34.5)	$	234.1	15
Acquired technology	163.9		(62.5)		101.4		6
Brand portfolio	4.6		(2.5)		2.1		9.7
Net intangible assets subject to amortization	$	437.1	$	(99.5)	$	337.6

Intangible assets not subject to amortization
Pre-Acquisition ZI brand portfolio					$	33.0
Goodwill					$	966.8

Future Amortization Expense

Future amortization expense for intangible assets as of December 31, 2020 is as follows (in millions):


	Estimate Amortization Expense
For years ended December 31,
2021	$	46.2
2022	$	46.2
2023	$	35.8
2024	$	34.2
2025	$	33.4

Changes to Goodwill

The following summarizes changes to the Company’s goodwill (in millions):


Balance at December 31, 2018	$	445.7
Goodwill from 2019 acquisitions	521.1
Balance at December 31, 2019	966.8
Goodwill from 2020 acquisitions	33.3
Balance at December 31, 2020	$	1,000.1

Financing Arrangements (Tables)

12 Months Ended

Dec. 31, 2020

Debt Disclosure [Abstract]

Carrying Values of Borrowings

As of December 31, 2020 and December 31, 2019, the carrying values of the Company’s borrowings were as follows (in millions):


				Carrying Value as of
Instrument	Date of Issuance	Maturity Date	Elected Interest Rate	December 31, 2020		December 31, 2019

First Lien Term Loan	February 1, 2019	February 1, 2026	LIBOR +3.75%	$	744.9	$	841.6
First Lien Revolver	February 1, 2019	February 1, 2024	LIBOR +3.50%	—		—
Second Lien Term Loan	February 1, 2019	February 1, 2027	LIBOR +8.50%	—		361.7
Total Carrying Value of Debt				744.9		1,203.3
Less current portion				—		(8.7)
Total Long-Term Debt				$	744.9	$	1,194.6

Expected Future Principal Payments for Borrowings

The expected future principal payments for all borrowings as of December 31, 2020 is as follows (in millions):


		Contractual Maturity		Discounts and Issuance Costs		As Presented
For the year ended December 31,	2021	$	—	$	(2.6)	$	(2.6)
	2022	—		(2.7)		(2.7)
	2023	—		(2.9)		(2.9)
	2024	—		(3.0)		(3.0)
	2025	—		(0.3)		(0.3)
	Thereafter	756.4		—		756.4
		$	756.4	$	(11.5)	$	744.9

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

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Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives and Hedging Activities (Tables)

12 Months Ended

Dec. 31, 2020

Outstanding Interest Rate Derivatives Designated as Cash Flow Hedges of Interest Rate Risk

As December 31, 2020, the Company had the following outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk ($ in millions):


Interest Rate Derivatives (Level 2)	Number of Instruments	Notional Aggregate Principal Amount		Interest Cap / Swap Rate		Maturity Date
Interest rate cap contract	One	$	256.4	3.500	%	April 30, 2024
Interest rate swap contracts	Two	$	350.0	2.301	%	April 29, 2022
Forward-starting interest rate swap contracts	Two	$	500.0	0.370	%	January 30, 2026

Fair Value and Presentation in the Consolidated Balance Sheets for Derivatives

The following table summarizes the fair value and presentation in the Consolidated Balance Sheets for derivatives as of December 31, 2020 and December 31, 2019 (in millions):


	Fair Value of Derivative Instruments
Instrument	December 31, 2020				December 31, 2019
	Derivative Assets		Derivative Liabilities		Derivative Assets		Derivative Liabilities
Derivatives designated as hedging instruments
Interest rate cap contract(1)	$	—	$	0.2	$	—	$	0.3
Interest rate cap contract(2)	—		0.2		—		0.4
Interest rate swap contracts(1)	—		7.3		—		2.3
Interest rate swap contracts(2)	—		2.2		—		3.0
Forward-starting interest rate swap contracts(3)	1.0		—		—		N/A
Total designated derivative fair value	1.0		9.9		—		6.0

Derivatives not designated as hedging instruments
Interest rate cap contract(1)	—		0.2		—		—
Interest rate cap contract(2)	—		0.2		—		—
Total undesignated derivative fair value	—		0.4		—		—
Total derivative fair value	$	1.0	$	10.3	$	—	$	6.0

________________

(1) Included in Accrued expenses and other current liabilities on our Consolidated Balance Sheets.

(2) Included in Other long-term liabilities on our Consolidated Balance Sheets.

(3) Included in Deferred costs and other assets, net of current portion on our Consolidated Balance Sheets.

Fair Value (Tables)

12 Months Ended

Dec. 31, 2020

Fair Value Disclosures [Abstract]

Assets and (Liabilities) Measured at Fair Value

The fair value (in millions) of our financial assets and (liabilities) was determined using the following inputs:


Fair Value at December 31, 2020	Level 1		Level 2		Level 3
Measured on a recurring basis:
Assets:
Cash equivalents:
Corporate debt securities	$	—	$	72.0	$	—
Money market mutual funds	$	91.0	$	—	$	—
U.S. Treasury securities	$	—	$	6.4	$	—
Short-term investments:
Corporate debt securities	$	—	$	24.0	$	—
U.S. Treasury securities	$	—	$	2.0	$	—
U.S. government agency securities	$	—	$	4.6	$	—
Deferred costs and other assets, net of current portion
Forward-starting interest rate swap contracts	$	—	$	1.0	$	—
Liabilities:
Derivative contracts:
Interest rate cap contract	$	—	$	(0.8)	$	—
Interest rate swap contracts	$	—	$	(9.5)	$	—

Measured on a non-recurring basis:
N/A	$	—	$	—	$	—


Fair Value at December 31, 2019	Level 1		Level 2		Level 3
Measured on a recurring basis:
Liabilities:
Derivative contracts:
Interest rate cap contract	$	—	$	(0.7)	$	—
Interest rate swap contracts	$	—	$	(5.3)	$	—

Measured on a non-recurring basis:
Assets:
Impaired right-of-use assets	$	—	$	—	$	1.4

Commitments and Contingencies Disclosure [Abstract]

Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances.

+ References + Details

Commitment and Contingencies (Tables)

12 Months Ended

Dec. 31, 2020

Recorded Unconditional Purchase Obligations


Fiscal Period:	Amount (in millions)
2021	$	11.7
2022	3.9
2023	2.8
2024	0.1
2025	—
Thereafter	—
Total	$	18.5

Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Basic and Diluted Net Loss Per Share


	Year Ended December 31, 2020
Numerator:
Net loss	$	(36.4)
Add: Net loss attributable to ZoomInfo OpCo before Reorganization Transactions	5.1
Less: Excess of consideration paid over carrying amount to holders of Series A Preferred Units attributable to common shares	(11.0)
Add: Net loss attributable to noncontrolling interests	27.3
Net income (loss) attributable to ZoomInfo Technologies Inc.	$	(15.0)

The following table sets forth the computation of basic and diluted net income per share of Class A and Class C common stock (in millions, except share and per share amounts):


	Year Ended December 31, 2020
	Class A		Class C

Basic net income (loss) per share attributable to common stockholders
Numerator:
Allocation of net income (loss) attributable to ZoomInfo Technologies Inc.	$	(6.0)	$	(9.0)
Denominator:
Weighted average number of shares of Class A and Class C common stock outstanding	62,464,272		94,278,971
Basic net income (loss) per share attributable to common stockholders	$	(0.10)	$	(0.10)


	Year Ended December 31, 2020
	Class A		Class C

Diluted net income (loss) per share attributable to common stockholders
Numerator:
Undistributed earnings for basic computation	$	(6.0)	$	(9.0)
Increase in earnings attributable to common shareholders upon conversion of potentially dilutive instruments	(2.0)		(2.9)
Reallocation of earnings as a result of conversion of potentially dilutive instruments	(1.2)		1.2
Reallocation of undistributed earnings as a result of conversion of Class C to Class A shares	(10.7)		—
Allocation of undistributed earnings	$	(19.9)	$	(10.7)
Denominator:
Number of shares used in basic computation	62,464,272		94,278,971
Add: weighted-average effect of dilutive securities exchangeable for Class A common stock:
HSKB I Class 1 Units	9,384,174		—
Class P Units	8,397,751		—
Exercise of Class A Common Stock Options	179,450		—






Conversion of Class C to Class A common shares outstanding	94,278,971		—
Weighted average shares of Class A and Class C common stock outstanding used to calculate diluted net income (loss) per share	174,704,618		94,278,971
Diluted net income (loss) per share attributable to common stockholders	$	(0.11)	$	(0.11)

Potential Common Stock Equivalents Excluded from Calculation of Diluted Net Loss Per Share


			Year Ended December 31, 2020



OpCo Units			213,410,605
Restricted Stock Units			251,285
HSKB II Phantom Units			545,779
LTIP Units			447,456
HoldCo Units			5,083,280
HSKB II Class 1 Units			5,244,286
Total anti-dilutive securities			224,982,691

Leases (Tables)

12 Months Ended

Dec. 31, 2020

Leases [Abstract]

Additional Details Related to Leases Recorded on the Balance Sheet

The Company’s lease assets and liabilities consist of the following (in millions):


		As of December 31,
(in millions)		2020		2019
Assets
Operating lease right-of-use assets, net	Operating leases	$	32.0	$	36.8

Liabilities
Current portion of operating lease liabilities	Operating leases	$	6.0	$	4.0
Operating lease liabilities, net of current portion	Operating leases	$	33.6	$	40.7

Other Information Related to Leases

Other information related to leases was as follows:


(in millions)	Year ended December 31,
Supplemental Cash Flow Information	2020		2019
Cash paid for amounts included in the measurement of operating lease liabilities	$	7.3	$	3.4

Lease liabilities arising from obtaining right-of-use assets
From acquisitions	$	0.4	$	28.6
From new and existing lease agreements and modifications	$	(0.9)	$	3.8


	As of December 31,
	2020		2019
Weighted Average Remaining Lease Term (in years)	5.0		8.6

Weighted Average Discount Rate	4.2	%	6.3	%

Undiscounted Future Minimum Lease Payments Under Non-Cancellable Leases


Year Ending December 31,	Operating Leases
2021	$	7.5
2022	8.3
2023	8.0
2024	12.8
2025	6.1
Thereafter	1.4
Total future minimum lease payments	44.1
less effects of discounting	4.5
Total lease liabilities	$	39.6

Reported as of December 31, 2020
Current portion of operating lease liabilities	$	6.0
Operating lease liabilities, net of current portion	33.6
Total lease liabilities	$	39.6

Equity-based Compensation (Tables)

12 Months Ended

Dec. 31, 2020

Share-based Payment Arrangement [Abstract]

Schedule of Restricted Stock Unit Activity

Restricted Stock Unit (“RSU”) activity was as follows during the periods indicated:


	Year Ended December 31, 2020
	Restricted Stock Units	Weighted Average Grant Date Fair Value
Unvested at beginning of period	—	$	—

Granted	1,055,609	$	29.09
Vested	(26,674)	$	21.00
Forfeited	(43,537)	$	28.67
Unvested at end of period	985,398	$	28.84

Schedule of Unvested Options Activity

Outstanding options activity was as follows during the period indicated:


	Year Ended December 31, 2020
	Options	Weighted Average Exercise Price
Outstanding at beginning of period	—	$	—
Effect of Reorganization Transactions and IPO	576,708	$	21.00


Forfeited	(24,268)	$	21.00
Outstanding at end of period	552,440	$	21.00


Aggregate intrinsic value (in millions)
Unit Options outstanding	$	15.0
Unit Options exercisable	$	—
Weighted average remaining contractual life (in years)
Unit Options outstanding	9.4 years
Unit Options exercisable	N/A

Equity-based Units Activity

Unvested HoldCo Unit activity was as follows during the periods indicated:


	Year Ended December 31, 2020
	HoldCo Units	Weighted Average Grant Date Fair Value
Unvested at beginning of period	—	$	—
Effect of Reorganization Transactions and IPO	1,332,239	$	8.98

Vested	(74,207)	$	6.27
Forfeited	(43,927)	$	9.36
Unvested at end of period	1,214,105	$	9.13

OpCo Unit activity was as follows during the periods indicated:


	Year Ended December 31, 2020			Year Ended December 31, 2019
	OpCo Units	Weighted Average Grant Date Fair Value		OpCo Units
Unvested at beginning of period	228,819	$	1.72	441,681
Effect of Reorganization Transactions and IPO	(6,909)	$	10.48	—

Vested	(162,218)	$	1.72	(118,867)
Forfeited	(59,692)	$	0.68	(93,995)
Unvested at end of period	—	$	—	228,819

Class P Units were issued under both the prior and current LLC agreement of ZoomInfo OpCo. Class P Unit activity was as follows during the periods indicated:


	Year Ended December 31, 2020			Year Ended December 31, 2019	Year Ended December 31, 2018
	Class P Units	Weighted Average Participation Threshold		Class P Units	Class P Units
Unvested at beginning of period	16,893,603	$	6.19	5,716,467	—
Effect of Reorganization Transactions and IPO	(1,950,930)	$	7.01	—	—
Granted	642,500	$	21.00	13,310,663	5,716,467
Vested	(6,357,566)	$	5.05	(280,563)	—
Forfeited	(430,965)	$	6.56	(1,852,964)	—
Unvested at end of period	8,796,642	$	6.59	16,893,603	5,716,467

LTIP Unit activity was as follows during the periods indicated:


	Year Ended December 31, 2020
	LTIP Units	Weighted Average Participation Threshold
Unvested at beginning of period	—	$	—

Granted	47,620	$	21.00


Unvested at end of period	47,620	$	21.00

Schedule of Valuation Assumptions

The fair value of Class A stock options granted at the time of the IPO was determined using the Black-Scholes option pricing model with the following assumption ranges and fair value per unit:


			Year Ended December 31, 2020
Volatility			39.0% to 39.3%
Expected life			5.6 to 5.9 years
Risk-free rate			0.5%
Fair value per unit			$21.00

The fair value of Class P Units granted was determined using the Black-Scholes option pricing model with the following assumption ranges and fair value per unit:


	Year Ended December 31,
	2020	2019	2018
Risk-free rate	0.5%	1.58% - 2.49%	2.49% - 2.82%
Volatility	39.9%	38.4% - 41.9%	39.1% - 41.2%
Expected life	6.5 - 6.8 years	4 years	4 years
Marketability discount	N/A	(A)	29%
Fair value per unit	$21.00	$5.20 - $14.36	$4.00 - $5.20

Equity-Based Compensation Expense


	Year Ended December 31,
	2020		2019		2018

Cost of service and Operating expenses include equity-based compensation expenses as follows:
Cost of service	$	27.4	$	4.0	$	8.3
Sales and marketing	62.6		11.2		15.8
Research and development	13.6		4.7		1.1
General and administrative	18.0		5.2		7.5
Total equity-based compensation expense	$	121.6	$	25.1	$	32.7

Summary of Unamortized Equity-Based Compensation Costs

As of December 31, 2020, unamortized equity-based compensation costs related to each equity-based incentive award described above is the following:


($ in millions, periods in years)	Amount		Weighted Average Remaining Service Period
Restricted Stock Units	$	29.2	3.5
Class A Common Stock Options	1.1		2.6
HoldCo Units	7.0		2.5
Class P Units	23.8		2.3
LTIP Units	0.9		3.9
HSKB Incentive Units	55.3		1.7
HSKB Phantom Units	4.4		2.5
Total unamortized equity-based compensation cost	$	121.7

Segment and Geographic Data (Tables)

12 Months Ended

Dec. 31, 2020

Segment Reporting [Abstract]

Revenue Disaggregated by Geographic Area

Revenue comprised the following service offerings (in millions):


	Year Ended December 31,
	2020		2019		2018
Subscription	$	471.2	$	289.3	$	143.4
Usage-based	5.0		4.0		0.9
Total revenue	$	476.2	$	293.3	$	144.3

Revenue by geographic region is as follows (in millions):


	Year Ended December 31,
	2020		2019		2018
United States	$	433.2	$	267.3	$	134.9
Rest of world	43.0		26.0		9.4
	$	476.2	$	293.3	$	144.3

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

The provision for income taxes for the years ended December 31, 2020 and 2019 consisted of the following (in millions):


	Year Ended December 31,
	2020		2019		2018
Current tax provision
Federal	$	(1.9)	$	—	$	—
State	(1.3)		(0.5)		(0.1)
Foreign	(3.3)		(0.2)		—
	(6.5)		(0.7)		(0.1)

Deferred tax provision
Federal	(0.9)		5.0		2.0
State	2.7		2.2		1.0
Foreign	—		—		—
	1.8		7.2		3.0

Benefit (expense) from income taxes	$	(4.7)	$	6.5	$	2.9

Schedule of Effective Income Tax Rate Reconciliation

For the years ended December 31, 2020, 2019, and 2018, the effective income tax rate differs from the U.S. federal statutory income tax rate as explained below:


	Year Ended December 31,
	2020		2019		2018
U.S. federal statutory income tax rate	21.0	%	21.0	%	21.0	%
State and local income taxes, net of federal benefit	(4.2)	%	1.6	%	5.8	%
Foreign taxes	(10.5)	%	—	%	—	%
Income allocable to NCI not subject to tax	(0.2)	%	(14.8)	%	(17.4)	%
Non-deductible stock compensation	(42.1)	%	—	%	—	%
Impact of GAAP basis shifts	(9.1)	%	—	%	—	%
R&D credit	3.2	%	—	%	—	%
Other	(0.3)	%	0.5	%	(0.3)	%
Valuation allowance	27.4	%	(0.6)	%	—	%
Effective income tax rate	(14.8)	%	7.7	%	9.1	%

Schedule of Deferred Tax Assets and Liabilities

As of December 31, 2020 and 2019, the components of deferred tax assets and liabilities are as follows (in millions):


	Year Ended December 31,
	2020		2019
Deferred tax assets
Investment in ZoomInfo Holdings LLC	$	649.6	$	—
Net operating loss carryforwards	5.9		4.9
Interest expense carryforward	9.7		7.2
Credit carryforwards	3.1		1.3
Other	—		—
Total deferred tax assets	$	668.3	$	13.4

Deferred tax liabilities
Investment in ZoomInfo Tech LLC	$	22.6	$	94.0
Total deferred tax liabilities	$	22.6	$	94.0

Less valuation allowance	$	(238.3)	$	(2.2)
Net deferred tax asset (liability)	$	407.4	$	(82.8)

Organization and Background (Details) $ / shares in Units, $ in Millions		12 Months Ended
	Jun. 08, 2020 USD ($) agreement $ / shares shares	Dec. 31, 2020 USD ($) office	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Repurchase of shares, value			$ 5.6
Merger consideration payable		$ 24.7	$ 0.3	$ 0.0
Conversion ratio	0
Number of tax receivable agreements \| agreement	2
ZoomInfo HoldCo
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Ownership of consolidated entity (as a percent)		98.00%
Blocker Mergers
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Merger consideration payable	$ 5.5
ZoomInfo HoldCo
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Number of shares repurchased \| shares	48,528,783
Repurchase of shares, value	$ 966.9
ZoomInfo HoldCo \| OpCo
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Ownership percentage of units		45.00%
OpCo
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Number of shares repurchased \| shares	2,370,948
Repurchase of shares, value	$ 47.2
IPO \| Class A common stock
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Number of shares sold \| shares	51,175,000
Public offering price (in dollars per share) \| $ / shares	$ 21.00
Net proceeds	$ 1,019.6
U.S.
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Number of offices \| office		8
Israel
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Number of offices \| office		1

Basis of Presentation and Summary of Significant Accounting Policies (Details)		12 Months Ended
	Jun. 08, 2020 agreement	Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Accounting Policies [Line Items]
Commissions payable		$ 25,600,000
Capitalized costs to obtain revenue contracts		44,900,000	$ 25,300,000
Amortization to sales and marketing expense		25,100,000	8,600,000
Costs capitalized to obtain revenue contract, net		40,300,000	20,500,000
Impairments of costs to obtain revenue contracts		0	0	$ 0
Advertising expenses		$ 13,200,000	9,800,000	2,500,000
Number of reporting units (segment) \| segment		1
Impairment of intangible assets		$ 0	0	0
Impairment of long-lived assets		$ 0	$ 1,100,000	0
Number of tax receivable agreements \| agreement	2
Payment provided as percent of net cash savings	85.00%
Benefit retained as percent of net cash savings	15.00%
Award vesting period		4 years
Company match of employee contribution (as a percent)		50.00%	35.00%
Employer matching contribution, percent of employee's gross pay		7.00%	6.00%
Matching contributions		$ 3,000,000.0	$ 1,400,000	$ 600,000
Vesting term for matching contributions		3 years
Accrued expenses and other current liabilities
Accounting Policies [Line Items]
Commissions payable		$ 23,300,000	$ 9,400,000
Other long-term liabilities
Accounting Policies [Line Items]
Commissions payable		$ 2,300,000
Minimum
Accounting Policies [Line Items]
Subscription contract, term		1 year
Estimated useful life		3 years
Amortization period for deferred sales commissions		1 year
Amortization period		2 years
Maximum
Accounting Policies [Line Items]
Subscription contract, term		3 years
Estimated useful life		10 years
Amortization period for deferred sales commissions		3 years
Amortization period		15 years

Revenue from Contracts with Customers - Revenue Disaggregated by Service Offering (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Total Revenue	$ 476.2	$ 293.3	$ 144.3
Subscription
Disaggregation of Revenue [Line Items]
Total Revenue	471.2	289.3	143.4
Usage-based
Disaggregation of Revenue [Line Items]
Total Revenue	$ 5.0	$ 4.0	$ 0.9

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Add: Net loss attributable to ZoomInfo OpCo before Reorganization Transactions

Revenue from Contracts with Customers - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Revenue recognized	$ 155.4	$ 52.2	$ 37.1
Contract assets recorded within Prepaid expenses and other current assets	2.4	0.1
Unearned revenue	222.7	159.1
Unearned revenue, current portion	$ 221.3	$ 157.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Disaggregation of Revenue [Line Items]
Satisfaction period		1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Disaggregation of Revenue [Line Items]
Satisfaction period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Disaggregation of Revenue [Line Items]
Satisfaction period
Minimum \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Disaggregation of Revenue [Line Items]
Satisfaction period	13 months
Maximum \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Disaggregation of Revenue [Line Items]
Satisfaction period	36 months
Outside the United States \| Revenue from Contract with Customer Benchmark \| Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk (as a percent)	9.00%	9.00%	7.00%

Revenue from Contracts with Customers - Remaining Performance Obligations (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations, amount	$ 559.0	$ 340.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations, amount		$ 266.6
Satisfaction period		1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations, amount	$ 432.2	$ 74.1
Satisfaction period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations, amount	$ 126.8
Satisfaction period

Business Combinations - Narrative (Details) customer in Thousands, $ in Millions			3 Months Ended	12 Months Ended
	Oct. 09, 2019 USD ($)	Feb. 01, 2019 USD ($) customer	Dec. 31, 2020 USD ($)	Dec. 31, 2020 USD ($) business	Dec. 31, 2019 USD ($) business	Dec. 31, 2018 USD ($)	Feb. 01, 2021 USD ($)	Jan. 31, 2019 USD ($)
Business Acquisition [Line Items]
Number of businesses acquired \| business				2	2
Unearned revenue			$ 222.7	$ 222.7	$ 159.1
2020 Business Acquisitions
Business Acquisition [Line Items]
Value of consideration transferred			71.7
Equity interests issuable			2.9
Incentive sompensation			4.8
Cash acquired			2.9
Fair value of acquired unearned revenue			3.4	3.4
Cash, cash equivalents, and restricted cash			2.9	2.9
2020 Business Acquisitions \| Restricted Stock Units
Business Acquisition [Line Items]
Equity interests issuable			2.1
Komiko
Business Acquisition [Line Items]
Value of consideration transferred	$ 8.5
Potential contingent payments	$ 4.0		4.0	4.0
Contingent payments attributable to purchase consideration (as a percent)	40.00%
Additional liability recognized relating to contingent payments				1.6
Fair value of acquired unearned revenue	$ 0.2
Komiko \| Developed technology
Business Acquisition [Line Items]
Identifiable finite-lived intangible assets	$ 2.4
Amortization period	7 years
Pre-Acquisition ZI
Business Acquisition [Line Items]
Value of consideration transferred		$ 760.1
Ownership acquired (as a percent)		100.00%
Number of customers served (over) \| customer		8
Transaction costs incurred		$ 2.7
Cash acquired		12.1
Deferred consideration, current		25.0
Fair value of acquired unearned revenue		34.5
Unearned revenue								$ 68.3
Fair value adjustment of acquired deferred revenue		$ 33.8
Period to recognize acquired deferred revenue		1 year
Pro forma transaction costs and bonuses						$ 9.2
Cash, cash equivalents, and restricted cash		$ 12.1
Pre-Acquisition ZI \| Accrued expense and other current liabilities
Business Acquisition [Line Items]
Deferred consideration, current			10.0	10.0
Pre-Acquisition ZI \| Cash Vesting Payment Program
Business Acquisition [Line Items]
Potential value of future payments			$ 4.2	4.2
Contingent consideration expense				$ 6.4	$ 8.8
Pre-Acquisition ZI \| Forecast
Business Acquisition [Line Items]
Deferred consideration, noncurrent							$ 10.0
Pre-Acquisition ZI \| Developed technology
Business Acquisition [Line Items]
Amortization period		5 years 9 months 18 days

Business Combinations - Acquisition Date Fair Value of Consideration Transferred (Details) - USD ($) $ in Millions			3 Months Ended
	Oct. 09, 2019	Feb. 01, 2019	Dec. 31, 2020
2020 Business Acquisitions
Business Acquisition [Line Items]
Cash			$ 61.6
Purchase consideration liabilities			7.2
Issuance of 67,075 Class A shares			2.9
Total purchase consideration			$ 71.7
2020 Business Acquisitions \| Class A common stock
Business Acquisition [Line Items]
Equity interest issuable (in shares)			67,075
Komiko
Business Acquisition [Line Items]
Cash	$ 8.3
Contingent earnout payments	0.2
Total purchase consideration	$ 8.5
Pre-Acquisition ZI
Business Acquisition [Line Items]
Cash		$ 667.3
Liability for equity award settlement		25.2
Portion of replacement awards attributable to pre-acquisition service		27.9
Other purchase consideration liabilities		6.5
Total purchase consideration		$ 760.1

Business Combinations - Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions			3 Months Ended	12 Months Ended
	Oct. 09, 2019	Feb. 01, 2019	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill			$ 1,000.1	$ 1,000.1	$ 966.8	$ 445.7
Cash paid for acquisitions, net of cash acquired				65.9	$ 723.1	$ 8.5
Komiko
Business Acquisition [Line Items]
Unearned revenue	$ (0.2)
Total identifiable net assets acquired	2.2
Goodwill	6.3
Total consideration	8.5
Contingent earnout payments	(0.2)
Cash paid for acquisitions, net of cash acquired	8.3
Komiko \| Developed technology
Business Acquisition [Line Items]
Finite-lived intangible assets	$ 2.4
Pre-Acquisition ZI
Business Acquisition [Line Items]
Cash, cash equivalents, and restricted cash		$ 12.1
Accounts receivable		22.1
Prepaid expenses and other assets		4.2
Property and equipment		6.3
Operating lease right-of-use assets		28.6
Intangible assets		322.0
Accounts payable and other		(6.8)
Unearned revenue		(34.5)
Lease liabilities		(28.6)
Deferred tax liabilities		(80.1)
Total identifiable net assets acquired		245.3
Goodwill		514.8
Total consideration		760.1
Deferred consideration		(33.2)
Cash acquired		(12.1)
Cash paid for acquisitions, net of cash acquired		$ 714.8
2020 Business Acquisitions
Business Acquisition [Line Items]
Cash, cash equivalents, and restricted cash			2.9	2.9
Accounts receivable			3.0	3.0
Prepaid expenses and other assets			1.1	1.1
Intangible assets			37.0	37.0
Accounts payable and other			(2.2)	(2.2)
Unearned revenue			(3.4)	(3.4)
Total identifiable net assets acquired			38.4	38.4
Goodwill			33.3	33.3
Total consideration			71.7	$ 71.7
Issuance of 67,075 Class A shares			(2.9)
Cash acquired			(2.9)
Cash paid for acquisitions, net of cash acquired			$ 65.9
2020 Business Acquisitions \| Class A common stock
Business Acquisition [Line Items]
Equity interest issuable (in shares)			67,075

Business Combinations - Components of Identifiable Intangible Assets Acquired (Details) - USD ($) $ in Millions		3 Months Ended
	Feb. 01, 2019	Dec. 31, 2020
Pre-Acquisition ZI
Schedule of Acquired Assets by Major Class [Line Items]
Total intangible assets	$ 322.0
Pre-Acquisition ZI \| Developed technology
Schedule of Acquired Assets by Major Class [Line Items]
Fair Value	$ 116.0
Weighted Average Useful Life	5 years 9 months 18 days
Pre-Acquisition ZI \| Customer relationships
Schedule of Acquired Assets by Major Class [Line Items]
Fair Value	$ 173.0
Weighted Average Useful Life	15 years
Pre-Acquisition ZI \| Brand portfolio
Schedule of Acquired Assets by Major Class [Line Items]
Fair Value	$ 33.0
2020 Business Acquisitions
Schedule of Acquired Assets by Major Class [Line Items]
Total intangible assets		$ 37.0
2020 Business Acquisitions \| Developed technology
Schedule of Acquired Assets by Major Class [Line Items]
Fair Value		$ 29.6
Weighted Average Useful Life		7 years
2020 Business Acquisitions \| Database
Schedule of Acquired Assets by Major Class [Line Items]
Fair Value		$ 2.0
Weighted Average Useful Life		4 years
2020 Business Acquisitions \| Customer relationships
Schedule of Acquired Assets by Major Class [Line Items]
Fair Value		$ 3.4
Weighted Average Useful Life		9 years 3 months 18 days
2020 Business Acquisitions \| Brand portfolio
Schedule of Acquired Assets by Major Class [Line Items]
Fair Value		$ 2.0
Weighted Average Useful Life		6 years 6 months

Business Combinations - Pro Forma Revenue and Earnings of Acquisition (Details) - Pre-Acquisition ZI - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Revenue	$ 334.1	$ 205.6
Loss Before Income Taxes	$ (48.0)	$ (146.4)

Cash, Cash Equivalents, and Short-term Investments - Components (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash	$ 100.4
Cash Equivalents, at Carrying Value [Abstract]
Total cash equivalents	169.4
Cash and cash equivalents	269.8	$ 41.4
Short-term investments:
Short-term investments	30.6	$ 0.0
Total cash, cash equivalents, and short-term investments	300.4
Corporate debt securities
Cash Equivalents, at Carrying Value [Abstract]
Total cash equivalents	72.0
Short-term investments:
Short-term investments	24.0
Money market mutual funds
Cash Equivalents, at Carrying Value [Abstract]
Total cash equivalents	91.0
U.S. Treasury securities
Cash Equivalents, at Carrying Value [Abstract]
Total cash equivalents	6.4
Short-term investments:
Short-term investments	2.0
U.S. government agency securities
Short-term investments:
Short-term investments	$ 4.6

Cash, Cash Equivalents, and Short-term Investments - Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value (Details) $ in Millions	Dec. 31, 2020 USD ($) instrument
Debt Securities, Available-for-sale [Line Items]
Securities in an unrealized loss position for less than twelve months	24
Securities in an unrealized loss position for more than twelve months	0
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Less Than Twelve Months \| $	$ 78.0

Cash, Cash Equivalents, and Short-term Investments - Cost and Estimated Fair Value (Details) $ in Millions	Dec. 31, 2020 USD ($)
Cash and Cash Equivalents [Abstract]
Amortized Cost	$ 30.6
Estimated Fair Value	$ 30.6

Property and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
Property and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 50.7	$ 34.5
Less: accumulated depreciation	(19.7)	(11.2)
Property and equipment, net	31.0	23.3
Depreciation expense	8.9	6.1	$ 2.6
Computer equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	7.4	4.1
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	5.4	4.8
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	7.0	5.0
Internal use developed software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	28.0	19.7
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2.9	$ 0.9

Goodwill and Acquired Intangible Assets - Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 474.1	$ 437.1
Accumulated Amortization	(141.4)	(99.5)
Net	332.7	337.6
Goodwill	1,000.1	966.8	$ 445.7
Amortization of intangible assets	41.9	42.6	$ 14.7
Pre-Acquisition ZI brand portfolio
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets not subject to amortization	33.0	33.0
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	272.0	268.6
Accumulated Amortization	(52.6)	(34.5)
Net	$ 219.4	$ 234.1
Weighted Average Amortization Period	14 years 10 months 24 days	15 years
Acquired technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 195.5	$ 163.9
Accumulated Amortization	(85.8)	(62.5)
Net	$ 109.7	$ 101.4
Weighted Average Amortization Period	6 years 3 months 18 days	6 years
Brand portfolio
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 6.6	$ 4.6
Accumulated Amortization	(3.0)	(2.5)
Net	$ 3.6	$ 2.1
Weighted Average Amortization Period	8 years	9 years 8 months 12 days

Goodwill and Acquired Intangible Assets - Future Amortization Expense (Details) $ in Millions	Dec. 31, 2019 USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2021	$ 46.2
2022	46.2
2023	35.8
2024	34.2
2025	$ 33.4

Goodwill and Acquired Intangible Assets - Changes to Goodwill (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Beginning balance	$ 966,800,000	$ 445,700,000
Acquisition	33,300,000	521,100,000
Ending balance	1,000,100,000	966,800,000
Goodwill impairment	$ 0	$ 0

Financing Arrangements - Carrying Values of Borrowings (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total Carrying Value of Debt	$ 744.9	$ 1,203.3
Less current portion	0.0	(8.7)
Total Long-Term Debt	$ 744.9	1,194.6
First Lien Revolver
Debt Instrument [Line Items]
Elected Interest Rate	0.035%
First Lien Revolver	$ 0.0	0.0
Term Loan \| First Lien Term Loan
Debt Instrument [Line Items]
Elected Interest Rate	0.0375%
Total Carrying Value of Debt	$ 744.9	841.6
Term Loan \| Second Lien Term Loan
Debt Instrument [Line Items]
Elected Interest Rate	0.085%
Total Carrying Value of Debt	$ 0.0	$ 361.7

Financing Arrangements - Narrative (Details) - USD ($)					12 Months Ended
Financing Arrangements - Narrative (Details) - USD ($)	Jun. 17, 2020	Jun. 08, 2020	Feb. 19, 2020	Feb. 01, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Mar. 25, 2020
Debt Instrument [Line Items]
Prepayment of aggregate principal amount					$ 510,900,000	$ 649,800,000	$ 3,700,000
Aggregate principal amount outstanding					756,400,000
Loss on extinguishment of debt					$ 14,900,000	$ 9,400,000	$ 0
Redeemable Series A Preferred Units
Debt Instrument [Line Items]
Issuance of Class A common stock in IPO, net of costs (in shares)				51,750,000
Redeemable Series A Preferred Units \| Sale of stock in connection with the acquisition of Pre-Acquisition ZI
Debt Instrument [Line Items]
Proceeds, net of issuance costs				$ 200,200,000
Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate					0.035%
Aggregate principal amount outstanding								$ 35,000,000.0
Effective interest rate		3.70%
Maximum borrowing capacity				100,000,000.0
Extinguishment of debt		$ 35,000,000.0
Draws on revolving credit loan which trigger springing financial covenant (more than)					$ 35,000,000.0
Term Loan \| First Lien Term Loan
Debt Instrument [Line Items]
Face amount of debt				965,000,000
Basis spread on variable rate					0.0375%
Prepayment of aggregate principal amount	$ 101,200,000
Repurchased face amount of debt	100,000,000.0
Accrued interest	$ 1,200,000
Effective interest rate					4.30%	7.50%
Net leverage ratio (not to exceed)					7.65
Term Loan \| First Lien Term Loan \| LIBOR
Debt Instrument [Line Items]
Decrease to interest rate			0.50%
Basis spread on variable rate			4.00%
Term Loan \| First Lien Term Loan \| LIBOR \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate			3.75%
Term Loan \| First Lien Term Loan \| LIBOR \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate			4.00%
Term Loan \| First Lien Term Loan \| Base Rate \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate			2.75%
Term Loan \| First Lien Term Loan \| Base Rate \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate			3.00%
Term Loan \| Second Lien Term Loan
Debt Instrument [Line Items]
Face amount of debt				$ 370,000,000.0
Basis spread on variable rate					0.085%
Prepayment of aggregate principal amount		380,600,000
Accrued interest		$ 6,900,000
Effective interest rate		10.80%				11.90%
Prepayment premiums		$ 3,700,000
Loss on extinguishment of debt		7,300,000
Write-off of unamortized issuance costs and prepayment penalty incurred		$ 11,000,000.0

Financing Arrangements - Expected Future Principal Payments for Borrowings (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Contractual Maturity
2021	$ 0.0
2022	0.0
2023	0.0
2024	0.0
2025	0.0
Thereafter	756.4
Total	756.4
Discounts and Issuance Costs
2021	(2.6)
2022	(2.7)
2023	(2.9)
2024	(3.0)
2025	(0.3)
Thereafter	0.0
Total	(11.5)
As Presented
Thereafter	756.4
Total Carrying Value of Debt	$ 744.9	$ 1,203.3

Derivatives and Hedging Activities - Narrative (Details)	3 Months Ended
	Dec. 31, 2020 USD ($) instrument	Jun. 17, 2020 USD ($)	Apr. 30, 2019 USD ($) instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Aggregate principal amount outstanding	$ 756,400,000
First Lien Term Loan
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount not redesignated for which forecasted interest payments is probable not to occur	93,700,000
Changes in fair value included in AOCI expected to be reclassified over the next 12 months	5,900,000
First Lien Term Loan
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Deferred loss reclassified from AOCI into Interest expense, net	3,300,000
First Lien Term Loan \| First lien term loans
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Repurchased face amount of debt		$ 100,000,000.0
Designated as Hedging Instrument \| Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 850,000,000.0
Designated as Hedging Instrument \| Cash Flow Hedging \| Interest rate swap contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of derivative instruments \| instrument	2		2
Notional amount	$ 350,000,000.0		$ 350,000,000.0
Designated as Hedging Instrument \| Cash Flow Hedging \| Interest rate cap contract
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of derivative instruments \| instrument	1
Notional amount	$ 256,400,000		$ 500,000,000.0
Designated as Hedging Instrument \| Cash Flow Hedging \| Forward-starting interest rate swap contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of derivative instruments \| instrument	2
Notional amount	$ 500,000,000.0
Not Designated as Hedging Instrument \| Cash Flow Hedging \| Interest rate cap contract
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	$ 243,600,000

Derivatives and Hedging Activities - Outstanding Interest Rate Derivatives Designated as Cash Flow Hedges of Interest Rate Risk (Details) - Designated as Hedging Instrument - Cash Flow Hedging $ in Millions	Dec. 31, 2020 USD ($) instrument	Apr. 30, 2019 USD ($) instrument
Derivatives, Fair Value [Line Items]
Notional Aggregate Principal Amount	$ 850.0
Interest rate cap contract
Derivatives, Fair Value [Line Items]
Number of Instruments \| instrument	1
Notional Aggregate Principal Amount	$ 256.4	$ 500.0
Interest Cap (as a percent)	3.50%
Interest rate swap contracts
Derivatives, Fair Value [Line Items]
Number of Instruments \| instrument	2	2
Notional Aggregate Principal Amount	$ 350.0	$ 350.0
Swap Rate (as a percent)	2.301%
Forward-starting interest rate swap contracts
Derivatives, Fair Value [Line Items]
Number of Instruments \| instrument	2
Notional Aggregate Principal Amount	$ 500.0
Swap Rate (as a percent)	0.37%

Derivatives and Hedging Activities - Fair Value and Presentation in the Consolidated Balance Sheets for Derivatives (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 1.0	$ 0.0
Derivative Liabilities	10.3	6.0
Designated as Hedging Instrument \| Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative Assets	1.0	0.0
Derivative Liabilities	9.9	6.0
Designated as Hedging Instrument \| Cash Flow Hedging \| Accrued expenses and other current liabilities \| Interest rate cap contract
Derivatives, Fair Value [Line Items]
Derivative Assets	0.0	0.0
Derivative Liabilities	0.2	0.3
Designated as Hedging Instrument \| Cash Flow Hedging \| Accrued expenses and other current liabilities \| Interest rate swap contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0.0	0.0
Derivative Liabilities	7.3	2.3
Designated as Hedging Instrument \| Cash Flow Hedging \| Other long-term liabilities \| Interest rate cap contract
Derivatives, Fair Value [Line Items]
Derivative Assets	0.0	0.0
Derivative Liabilities	0.2	0.4
Designated as Hedging Instrument \| Cash Flow Hedging \| Other long-term liabilities \| Interest rate swap contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	0.0	0.0
Derivative Liabilities	2.2	3.0
Designated as Hedging Instrument \| Cash Flow Hedging \| Other long-term liabilities \| Forward-starting interest rate swap contracts
Derivatives, Fair Value [Line Items]
Derivative Assets	1.0	0.0
Derivative Liabilities	0.0
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative Assets	0.0	0.0
Derivative Liabilities	0.4	0.0
Not Designated as Hedging Instrument \| Accrued expenses and other current liabilities \| Interest rate cap contract
Derivatives, Fair Value [Line Items]
Derivative Assets	0.0	0.0
Derivative Liabilities	0.2	0.0
Not Designated as Hedging Instrument \| Other long-term liabilities \| Interest rate cap contract
Derivatives, Fair Value [Line Items]
Derivative Assets	0.0	0.0
Derivative Liabilities	$ 0.2	$ 0.0

Fair Value (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	$ 169.4
Short-term investments	30.6	$ 0.0
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	72.0
Short-term investments	24.0
Money market mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	91.0
U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	6.4
Short-term investments	2.0
U.S. government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	4.6
Measured on a recurring basis \| Level 1 \| Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0.0
Short-term investments	0.0
Measured on a recurring basis \| Level 1 \| Money market mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	91.0
Measured on a recurring basis \| Level 1 \| U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0.0
Short-term investments	0.0
Measured on a recurring basis \| Level 1 \| U.S. government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0.0
Measured on a recurring basis \| Level 1 \| Forward-starting interest rate swap contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets:	0.0
Measured on a recurring basis \| Level 1 \| Interest rate cap contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities:	0.0	0.0
Measured on a recurring basis \| Level 1 \| Interest rate swap contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities:	0.0	0.0
Measured on a recurring basis \| Level 2 \| Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	72.0
Short-term investments	24.0
Measured on a recurring basis \| Level 2 \| Money market mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0.0
Measured on a recurring basis \| Level 2 \| U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	6.4
Short-term investments	2.0
Measured on a recurring basis \| Level 2 \| U.S. government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	4.6
Measured on a recurring basis \| Level 2 \| Forward-starting interest rate swap contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets:	1.0
Measured on a recurring basis \| Level 2 \| Interest rate cap contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities:	(0.8)	(0.7)
Measured on a recurring basis \| Level 2 \| Interest rate swap contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities:	(9.5)	(5.3)
Measured on a recurring basis \| Level 3 \| Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0.0
Short-term investments	0.0
Measured on a recurring basis \| Level 3 \| Money market mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0.0
Measured on a recurring basis \| Level 3 \| U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0.0
Short-term investments	0.0
Measured on a recurring basis \| Level 3 \| U.S. government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0.0
Measured on a recurring basis \| Level 3 \| Forward-starting interest rate swap contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets:	0.0
Measured on a recurring basis \| Level 3 \| Interest rate cap contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities:	0.0	0.0
Measured on a recurring basis \| Level 3 \| Interest rate swap contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities:	$ 0.0	0.0
Measured on a non-recurring basis \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets:		0.0
Measured on a non-recurring basis \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets:		0.0
Measured on a non-recurring basis \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets:		$ 1.4

Commitment and Contingencies (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Oct. 09, 2019
Non-cancelable purchase obligations
2021	$ 11.7
2022	3.9
2023	2.8
2024	0.1
2025	0.0
Thereafter	0.0
Total	18.5
Business Acquisition [Line Items]
Liability for taxes owed and related penalties and interest	3.1	$ 2.1
Komiko
Business Acquisition [Line Items]
Potential earnout payment	$ 4.0		$ 4.0

Stockholders' Equity and Members' Deficit (Details)	Dec. 31, 2020 vote shares
Minimum
Class of Stock [Line Items]
Percent of Class B and Class C as outstanding common stock, voting right	5.00%
Maximum
Class of Stock [Line Items]
Percent of Class B and Class C as outstanding common stock, conversion and transfer	5.00%
ZoomInfo HoldCo
Noncontrolling Interest [Line Items]
Number of shares held \| shares	173,820,611
OpCo Units \| ZoomInfo HoldCo
Noncontrolling Interest [Line Items]
Number of shares held \| shares	177,586,542
Ownership interest (as a percent)	45.00%
Class A common stock
Class of Stock [Line Items]
Number of votes per share held	1
Class B common stock
Class of Stock [Line Items]
Number of votes per share held	10
Class B common stock \| OpCo Units
Class of Stock [Line Items]
Conversion ratio to Class A common stock	1
Class B common stock \| HoldCo Units
Class of Stock [Line Items]
Conversion ratio to Class A common stock	1
Class C common stock
Class of Stock [Line Items]
Number of votes per share held	10
Conversion ratio to Class A common stock	1

Redeemable Series A Preferred Units (Details) - USD ($) $ in Millions			3 Months Ended	12 Months Ended
	Jun. 08, 2020	Feb. 01, 2019	Jun. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Shares issued (in shares)				0	0
Stock issuance costs				$ 7.2	$ 0.0	$ 0.0
Shares outstanding (in shares)				0	0
Series A Preferred Unit redemption accretion				$ 74.0
Carrying amount of Units				0.0	$ 200.2
Additional paid-in capital
Class of Stock [Line Items]
Series A Preferred Unit redemption accretion			$ 74.0	$ 74.0
Redeemable Series A Preferred Units
Class of Stock [Line Items]
Shares issued (in shares)		51,750,000
Proceeds from sale of Series A Preferred Units		$ 200.2
Stock issuance costs		$ 0.6
Shares outstanding (in shares)					51,750,000
Outstanding preferred units redeemed and cancelled	$ 274.2
Carrying amount of Units	200.2
Unpaid dividends	45.4
Excess amount due upon early redemption	28.6
Excess due upon early redemption, noncontrolling interests	17.6
Excess amount paid attributable to common stockholders	$ 11.0

Earnings Per Share - Basic and Diluted Net Loss Per Share (Details) - USD ($)
$ / shares in Units, $ in Millions

12 Months Ended

Dec. 31, 2020

Dec. 31, 2019

Dec. 31, 2018

Earnings Per Share [Abstract]

Net loss

$ (36.4)

$ (78.0)

$ (28.6)

5.1

78.0

28.6

Less: Excess of consideration paid over carrying amount to holders of Series A Preferred Units attributable to common shares

(11.0)

Add: Net loss attributable to noncontrolling interests

27.3

$ 0.0

Net income (loss) attributable to ZoomInfo Technologies Inc.

$ (15.0)

Basic net income (loss) per share attributable to common stockholders

Basic net income (loss) per share attributable to common stockholders (in dollars per share)

^[1]

$ (0.10)

Diluted net income (loss) per share attributable to common stockholders

Basic net income (loss) per share attributable to common stockholders

^[1]

$ (0.11)

Class A Shares

Allocation of net income (loss) attributable to ZoomInfo Technologies Inc.

$ (6.0)

Weighted average common shares outstanding - basic (in shares)

62,464,272

Basic net income (loss) per share attributable to common stockholders (in dollars per share)

$ (0.10)

Diluted net income (loss) per share attributable to common stockholders

Increase in earnings attributable to common shareholders upon conversion of potentially dilutive instruments

$ (6.0)

(2.0)

Reallocation of earnings as a result of conversion of potentially dilutive instruments

(1.2)

Reallocation of undistributed earnings as a result of conversion of Class C to Class A shares

(10.7)

Number of shares used in basic computation

$ (19.9)

62,464,272

Conversion of Class C to Class A common shares outstanding (in shares)

94,278,971

Number of shares used in diluted per share computation (in shares)

174,704,618

Class A Shares | HSKB I Class 1 Units

$ (0.11)

Diluted net income (loss) per share attributable to common stockholders

Units exchangeable for Class A common stock (in shares)

9,384,174

Class A Shares | Class P Units

Diluted net income (loss) per share attributable to common stockholders

Units exchangeable for Class A common stock (in shares)

8,397,751

Class A Shares | Exercise of Class A Common Stock Options

Diluted net income (loss) per share attributable to common stockholders

Units exchangeable for Class A common stock (in shares)

179,450

Class C Shares

Basic net income (loss) per share attributable to common stockholders

Allocation of net income (loss) attributable to ZoomInfo Technologies Inc.

$ (9.0)

Weighted average common shares outstanding - basic (in shares)

94,278,971

Basic net income (loss) per share attributable to common stockholders (in dollars per share)

$ (0.10)

Diluted net income (loss) per share attributable to common stockholders

Increase in earnings attributable to common shareholders upon conversion of potentially dilutive instruments

$ (9.0)

(2.9)

Reallocation of earnings as a result of conversion of potentially dilutive instruments

1.2

Number of shares used in basic computation

$ (10.7)

94,278,971

Number of shares used in diluted per share computation (in shares)

94,278,971

$ (0.11)

[1]

Earnings Per Share - Potential Common Stock Equivalents Excluded from Calculation of Diluted Net Loss Per Share (Details)	12 Months Ended
	Dec. 31, 2020 shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities	224,982,691
OpCo Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities	213,410,605
Restricted Stock Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities	251,285
HSKB II Phantom Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities	545,779
LTIP Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities	447,456
HoldCo Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities	5,083,280
HSKB II Class 1 Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities	5,244,286

Leases - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Leases - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Sublease, remaining lease term (less than)	1 year
Rent expense	$ 7.6	$ 6.5	$ 1.9

Leases - Additional Details Related to Leases Recorded on the Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease right-of-use assets, net	$ 32.0	$ 36.8
Current portion of operating lease liabilities	6.0	4.0
Operating lease liabilities, net of current portion	$ 33.6	$ 40.7

Leases - Other Information Related to Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Cash paid for amounts included in the measurement of operating lease liabilities	$ 7.3	$ 3.4
From new and existing lease agreements and modifications	$ (0.9)	$ 3.8
Weighted average remaining lease term	5 years	8 years 7 months 6 days
Weighted average discount rate	4.20%	6.30%
From Zoom Information, Inc. acquisition
Business Acquisition [Line Items]
Lease liabilities arising from obtaining right-of-use assets	$ 0.4	$ 28.6

Leases - Undiscounted Future Minimum Payments Under Non-Cancellable Leases (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
2021	$ 7.5
2022	8.3
2023	8.0
2024	12.8
2025	6.1
Thereafter	1.4
Total future minimum lease payments	44.1
less effects of discounting	4.5
Operating Lease, Liability, Total	39.6
Current portion of operating lease liabilities	6.0	$ 4.0
Operating lease liabilities, net of current portion	$ 33.6	$ 40.7

Equity-based Compensation - Narrative (Details) $ / shares in Units, $ in Millions				1 Months Ended		3 Months Ended	5 Months Ended	12 Months Ended
	Dec. 31, 2020 USD ($) shares	Jun. 08, 2020 USD ($) $ / shares shares	Mar. 31, 2020 USD ($)	Jun. 30, 2020	Dec. 31, 2019 USD ($) grantee shares	Jun. 30, 2020 USD ($)	Jun. 07, 2020	Dec. 31, 2020 USD ($) shares	Dec. 31, 2019 USD ($) shares	Dec. 31, 2018 USD ($) shares	May 27, 2020 shares	Nov. 30, 2019	Dec. 31, 2017 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental grant date fair value \| $		$ 4.0
Award vesting period								4 years
Compensation costs \| $								$ 121.6	$ 25.1	$ 32.7
Shares issued in conversion (in shares)								576,708
Cash distributions \| $								$ 9.9	16.5	93.4
Grants with accelerated vesting (in shares)								4
Expense attributable to service period already elapsed \| $									$ 25.1	$ 32.7
Unit options exercisable, aggregate intrinsic value \| $	$ 50.3							$ 50.3
Options, vested in period, fair value \| $								202.5
Class A common stock \| IPO
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Public offering price (in dollars per share) \| $ / shares		$ 21.00
2020 Omnibus Incentive Plan \| Class A common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Units authorized (in shares)											18,650,000
Increase to authorized plan shares based on stock outstanding, percentage	5.00%
Pre-IPO Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period							4 years
Pre-IPO Awards \| Tranche one
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period							2 years
Award vesting percentage							50.00%
Post-IPO Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				4 years
Post-IPO Awards \| Tranche one
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage				25.00%
Post-IPO Awards \| Tranche two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage				6.25%
Exercise of Class A Common Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued in conversion (in shares)		576,708
Unit options exercisable, aggregate intrinsic value \| $	$ 0.0							$ 0.0
HoldCo Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued in conversion (in shares)		1,325,330						1,332,239
Number of units vested (in shares)								74,207
Number of units not yet vested (in shares)	1,214,105				0			1,214,105	0
Unrecognized equity-based compensation cost, excluding options \| $	$ 7.0							$ 7.0
Class P Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)								642,500	13,310,663	5,716,467
Shares converted (in shares)		(1,950,930)						(1,950,930)	0	0
Number of units vested (in shares)								6,357,566	280,563	0
Number of units not yet vested (in shares)	8,796,642				16,893,603			8,796,642	16,893,603	5,716,467			0
Unrecognized equity-based compensation cost, excluding options \| $	$ 23.8							$ 23.8
HSKB Incentive Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance vesting condition (more than) (as a percent)												90.00%
Number of grantees affected \| grantee					142
Increase in unrecognized equity-based compensation cost \| $					$ 88.4
Amount allocated to be paid if holder of grant remains employed \| $	12.2		$ 5.3					12.2		$ 31.3
Employment period			4 years							3 years
Cash distributions \| $								11.3		$ 21.8
HSKB Incentive Units \| Tranche one
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period					2 years
Award vesting percentage					50.00%
HSKB II Phantom Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs \| $						$ 57.6
Unrecognized equity-based compensation cost, excluding options \| $	$ 4.4							$ 4.4
HSKB II Phantom Units \| ZoomInfo OpCo and HSKB 2019 Phantom Unit Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period to settle awards					30 days
HSKB II Phantom Units \| ZoomInfo OpCo and HSKB 2019 Phantom Unit Plans \| Common Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Economic equivalent of Unit (in shares)								1
OpCo Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares converted (in shares)								(6,909)	0
Number of units vested (in shares)								162,218	118,867
Number of units not yet vested (in shares)	0				228,819			0	228,819	441,681
Class 1 Unit \| Class A common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Economic equivalent of Unit (in shares)								1

Equity-based Compensation - Restricted Stock Units Activity (Details) - Restricted Stock Units	12 Months Ended
	Dec. 31, 2020 $ / shares shares
Shares
Beginning balance (in shares) \| shares	0
Granted (in shares) \| shares	1,055,609
Vested (in shares) \| shares	(26,674)
Forfeited (in shares) \| shares	(43,537)
Ending balance (in shares) \| shares	985,398
Weighted Average Grant Date Fair Value
Beginning balance (in dollars per share) \| $ / shares	$ 0
Granted (in dollars per share) \| $ / shares	29.09
Vested (in dollars per share) \| $ / shares	21.00
Forfeited (in dollars per share) \| $ / shares	28.67
Ending balance (in dollars per share) \| $ / shares	$ 28.84

Equity-based Compensation - Class A Common Stock Options Activity (Details) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
	Jun. 08, 2020	Dec. 31, 2020
Options
Outstanding at beginning of period (in shares)		0
Effect of Reorganization Transactions and IPO (in shares)		576,708
Forfeited (in shares)		(24,268)
Outstanding at end of period (in shares)		552,440
Weighted Average Exercise Price
Outstanding at beginning of period (in dollars per share)		$ 0
Effect of Reorganization Transactions and IPO (in dollars per share)		21.00
Forfeited (in dollars per share)		21.00
Outstanding at end of period (in dollars per share)		$ 21.00
Unit options exercisable, aggregate intrinsic value		$ 50.3
Exercise of Class A Common Stock Options
Options
Effect of Reorganization Transactions and IPO (in shares)	576,708
Weighted Average Exercise Price
Option exercisable (in shares)		0
Unit options outstanding, aggregate intrinsic value		$ 15.0
Unit options exercisable, aggregate intrinsic value		$ 0.0
Unit options outstanding, weighted average remaining term		9 years 4 months 24 days

Equity-based Compensation - Schedule of Valuation Assumptions (Details) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Exercise of Class A Common Stock Options \| Employee Incentive Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility, minimum	39.00%
Volatility, maximum	39.30%
Risk-free rate	0.50%
Fair value per common unit (in dollars per share)	$ 21.00
Exercise of Class A Common Stock Options \| Employee Incentive Program \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life	5 years 7 months 6 days
Exercise of Class A Common Stock Options \| Employee Incentive Program \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life	5 years 10 months 24 days
Class P Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value per common unit (in dollars per share)	$ 21.00
Class P Units \| Employee Incentive Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility	39.90%
Volatility, minimum		38.40%	39.10%
Volatility, maximum		41.90%	41.20%
Expected life		4 years	4 years
Risk-free rate	0.50%
Risk-free rate, minimum		1.58%	2.49%
Risk-free rate, maximum		2.49%	2.82%
Marketability discount (as a percent)			29.00%
Fair value per common unit (in dollars per share)	$ 21.00
Weight applied to IPO scenario (as a percent)		80.00%
Class P Units \| Employee Incentive Program \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life	6 years 6 months
Marketability discount (as a percent)		13.00%
Fair value per common unit (in dollars per share)		$ 5.20	$ 4.00
Period until liquidation event		1 year 6 months
Class P Units \| Employee Incentive Program \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life	6 years 9 months 18 days
Marketability discount (as a percent)		25.00%
Fair value per common unit (in dollars per share)		$ 14.36	$ 5.20
Period until liquidation event		4 years

Equity-based Compensation - HoldCo Unit Activity (Details) - $ / shares		12 Months Ended
	Jun. 08, 2020	Dec. 31, 2020
Shares
Effect of Reorganization Transactions and IPO (in shares)		576,708
Weighted Average Grant Date Fair Value
Effect of Reorganization Transactions and IPO (in dollars per share)		$ 21.00
HoldCo Units
Shares
Beginning balance (in shares)		0
Effect of Reorganization Transactions and IPO (in shares)	1,325,330	1,332,239
Vested (in shares)		(74,207)
Forfeited (in shares)		(43,927)
Ending balance (in shares)		1,214,105
Weighted Average Grant Date Fair Value
Beginning balance (in dollars per share)		$ 0
Effect of Reorganization Transactions and IPO (in dollars per share)		8.98
Vested (in dollars per share)		6.27
Forfeited (in dollars per share)		9.36
Ending balance (in dollars per share)		$ 9.13

Equity-based Compensation - OpCo Unit Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Weighted Average Grant Date Fair Value
Effect of Reorganization Transactions and IPO (in dollars per share)	$ 21.00
OpCo Units
Shares
Beginning balance (in shares)	228,819	441,681
Effect of Reorganization Transactions and IPO (in shares)	(6,909)	0
Vested (in shares)	(162,218)	(118,867)
Forfeited (in shares)	(59,692)	(93,995)
Ending balance (in shares)	0	228,819
Weighted Average Grant Date Fair Value
Beginning balance (in dollars per share)	$ 1.72
Effect of Reorganization Transactions and IPO (in dollars per share)	10.48
Vested (in dollars per share)	1.72
Forfeited (in dollars per share)	0.68
Ending balance (in dollars per share)	$ 0	$ 1.72

Equity-based Compensation - Class P Units Activity (Details) - $ / shares		12 Months Ended
	Jun. 08, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Weighted Average Grant Date Fair Value
Effect of Reorganization Transactions and IPO (in dollars per share)		$ 21.00
Class P Units
Shares
Beginning balance (in shares)		16,893,603	5,716,467	0
Effect of Reorganization Transactions and IPO (in shares)	(1,950,930)	(1,950,930)	0	0
Granted (in shares)		642,500	13,310,663	5,716,467
Vested (in shares)		(6,357,566)	(280,563)	0
Forfeited (in shares)		(430,965)	(1,852,964)	0
Ending balance (in shares)		8,796,642	16,893,603	5,716,467
Weighted Average Grant Date Fair Value
Beginning balance (in dollars per share)		$ 6.19
Effect of Reorganization Transactions and IPO (in dollars per share)		7.01
Granted (in dollars per share)		21.00
Vested (in dollars per share)		5.05
Forfeited (in dollars per share)		6.56
Ending balance (in dollars per share)		$ 6.59	$ 6.19

Equity-based Compensation - LTIP Units Activity (Details) - LTIP Units	12 Months Ended
	Dec. 31, 2020 $ / shares shares
Shares
Beginning balance (in shares) \| shares	0
Granted (in shares) \| shares	47,620
Ending balance (in shares) \| shares	47,620
Weighted Average Participation Threshold
Beginning balance (in dollars per share) \| $ / shares	$ 0
Granted (in dollars per share) \| $ / shares	21.00
Ending balance (in dollars per share) \| $ / shares	$ 21.00

Equity-based Compensation - Equity-based Compensation Expense and Summary of Unamortized Equity-Based Compensation Costs (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs		$ 121.6	$ 25.1	$ 32.7
Total unamortized equity-based compensation cost		$ 121.7
Weighted Average Remaining Service Period (years)
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized equity-based compensation cost, excluding options		$ 29.2
Weighted Average Remaining Service Period (years)		3 years 6 months
Exercise of Class A Common Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized equity-based compensation cost, options		$ 1.1
Weighted Average Remaining Service Period (years)		2 years 7 months 6 days
HoldCo Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized equity-based compensation cost, excluding options		$ 7.0
Weighted Average Remaining Service Period (years)		2 years 6 months
Class P Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized equity-based compensation cost, excluding options		$ 23.8
Weighted Average Remaining Service Period (years)		2 years 3 months 18 days
LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized equity-based compensation cost, excluding options		$ 0.9
Weighted Average Remaining Service Period (years)		3 years 10 months 24 days
HSKB Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized equity-based compensation cost, excluding options		$ 55.3
Weighted Average Remaining Service Period (years)		1 year 8 months 12 days
HSKB II Phantom Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs	$ 57.6
Unrecognized equity-based compensation cost, excluding options		$ 4.4
Weighted Average Remaining Service Period (years)		2 years 6 months
Cost of service
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs		$ 27.4	4.0	8.3
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs		62.6	11.2	15.8
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs		13.6	4.7	1.1
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs		$ 18.0	$ 5.2	$ 7.5

Segment and Geographic Data (Details) $ in Millions	12 Months Ended
Segment and Geographic Data (Details) $ in Millions	Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Segment Reporting [Abstract]
Number of operating segments \| segment	1
Revenue, Major Customer [Line Items]
Revenue	$ 476.2	$ 293.3	$ 144.3
United States
Revenue, Major Customer [Line Items]
Revenue	433.2	267.3	134.9
Rest of world
Revenue, Major Customer [Line Items]
Revenue	$ 43.0	$ 26.0	$ 9.4
Rest of world \| Geographic Concentration Risk \| Revenue from Contract with Customer Benchmark
Revenue, Major Customer [Line Items]
Concentration risk (as a percent)	9.00%	9.00%	7.00%