Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Note 17 - Income Taxes The Company recorded $1.4 million of income tax expense and $1.0 million of income tax benefit for the three months ended September 30, 2020 and 2019, respectively, and $9.8 million of income tax expense and $5.7 million of income tax benefit for the nine months ended September 30, 2020 and 2019, respectively. The Company’s estimated effective tax rate for the nine months ended September 30, 2020 was (15.5)%. The Company’s estimated annual effective tax rate differs from the statutory rate of 21.0% primarily due to certain compensation expenses that will not have a corresponding deduction for tax, and because the Company is not liable for income taxes on the portion of earnings that are attributable to non-controlling interest. As a result of the IPO, the Company recorded a change in the net deferred tax asset position, net of valuation allowance, of $224.4 million, which primarily consisted of the Company’s outside basis differences in its partnership subsidiaries. As a result of the Secondary Offering, the Company recorded an additional deferred tax asset, net of valuation allowance, of $92.9 million, which primarily consists of the Company’s outside basis differences in its partnership subsidiaries. In assessing the realizability of deferred tax assets, including the deferred tax assets recorded as a result of the IPO, Secondary Offering, and current year operations, management determined that it was more likely than not that the deferred tax assets will be realized. In addition, the Company has assessed the need for valuation allowances on indefinite lived assets recorded at its lower tier subsidiaries. As of the result, the Company has recorded a valuation allowance of $207.4 million related to the indefinite outside basis in the corporate stock of its wholly owned subsidiary. The Coronavirus Aid, Relief, and Economic Security (CARES) Act was signed into law on March 27, 2020. The Act contained several retroactive corporate tax provisions, including modifications to net operating loss application and the Section 163(j) limitation on business interest expense. Under U.S. GAAP, the effect of a change in tax law is recorded discretely as a component of the income tax provision related to continuing operations in the period of enactment. The Act did not have a material impact on the income tax benefit or the deferred taxes of the Company for the three and nine months ended September 30, 2020. The Company does not believe it has any significant uncertain tax positions and therefore has no unrecognized tax benefits as of September 30, 2020, that if recognized, would affect the annual effective tax rate. Tax Receivable Agreement The Company expects to obtain an increase in its share of the tax basis in the net assets of ZoomInfo HoldCo when OpCo Units and HoldCo Units are exchanged by Pre-IPO OpCo Unitholders and Pre-IPO OpCo Unitholders, respectively. The Company intends to treat any redemptions and exchanges of HoldCo Units and 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. In connection with the Reorganization Transactions and the IPO, the Company entered into (i) the Exchange Tax Receivable Agreement with certain of our Pre-IPO OpCo Unitholders and (ii) the Reorganization Tax Receivable Agreement with the Pre-IPO Blocker Holder (collectively, the “Tax Receivable Agreements”). The Tax Receivable Agreements provide for the payment by ZoomInfo Technologies Inc. of 85.0% of the amount of any tax benefits that ZoomInfo Technologies Inc. actually realizes, or in some cases is deemed to realize, as a result of (i) increases in ZoomInfo Technologies Inc.’s share of the tax basis in the net assets of ZoomInfo HoldCo resulting from any redemptions or exchanges of HoldCo Units or OpCo Units, (ii) tax basis increases attributable to payments made under the Tax Receivable Agreements, and (iii) deductions attributable to imputed interest pursuant to the Tax Receivable Agreements (the ‘‘TRA Payments”). The Company expects to benefit from the remaining 15.0% of any of cash savings, if any, that it realizes. As of September 30, 2020, the Company had a liability of $182.6 million related to its projected obligations under the Tax Receivable Agreements. Tax Receivable Agreements related liabilities are classified as current or noncurrent based on the expected date of payment and are included in the Company’s Condensed Consolidated Balance Sheets under the captions Current portion of tax receivable agreements liability and Tax receivable agreements liability, net of current portion, respectively.

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.