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Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer.

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Other Intangible Assets, net and Goodwill - Other Intangibles Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jun. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Jan. 01, 2020
Goodwill [Line Items]
Amortization of intangible assets		$ 128,026	$ 65,696	$ 383,270	$ 168,049
Customer First Now
Goodwill [Line Items]
Increase in intangible assets	$ 6,446
Asset acquisition, consideration transferred	$ 6,446
Remaining Range of Years	4 years 8 months 12 days
Discontinued Operations, Disposed of by Sale \| Brand Protection, AntiPiracy, and AntiFraud Solutions
Goodwill [Line Items]
Purchase price							$ 3,751
Impairment of intangible assets					$ 17,967
Computer software \| Customer First Now
Goodwill [Line Items]
Increase in intangible assets	$ 1,000
Remaining Range of Years	3 years
Database Rights \| Customer First Now
Goodwill [Line Items]
Increase in intangible assets	$ 5,446
Remaining Range of Years	5 years
Trade names
Goodwill [Line Items]
Indefinite-lived intangible assets		$ 162,939		$ 162,939		$ 161,245