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Acquisitions - Additional Information (Details) - USD ($) $ in Thousands			1 Months Ended	11 Months Ended	12 Months Ended
	Nov. 30, 2021	Jan. 31, 2020	Jan. 31, 2020	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost And Reserve [Line Items]
Goodwill				$ 770,089	$ 793,892	$ 770,089
Revenues			$ 36,785	$ 472,369	712,295		$ 481,767
Silver Lake Transaction [Member]
Restructuring Cost And Reserve [Line Items]
Fair value of consideration transferred		$ 1,575,958
Closing costs & transaction expenses						$ 31,800
2021 Acquisitions [Member]
Restructuring Cost And Reserve [Line Items]
Cash, net of cash acquired					9,700
Goodwill					3,700
Intangible assets					3,700
Revenues					$ 24,600
Corporate Screening [Member]
Restructuring Cost And Reserve [Line Items]
Fair value of consideration transferred	$ 39,192
Cash, net of cash acquired	$ 39,400
Business acquisition, Percentage acquired	100.00%

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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The expenses and losses recorded for each transaction with the acquiree that was recognized separately from the acquisition of assets and assumptions of liabilities in the business combination.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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