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Equity-Based Compensation - Class B Plans (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Dec. 10, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Class B Units
Equity-Based Compensation
Percentage of Time-Based Vesting Units				50.00%
Percentage of Performance-Based Vesting Units				50.00%
Compensation expense		$ 8,165	$ 1,181	$ 20,846	$ 2,286
Time Based Class B Units
Equity-Based Compensation
Vesting period				5 years
Service period				5 years
Compensation expense		767		$ 2,298
Unrecognized share-based compensation expense		7,230		7,230
Performance Based Class B Units
Equity-Based Compensation
Compensation expense		3,120		10,144
Unrecognized share-based compensation expense		$ 14,072		$ 14,072
Performance Based Class B Units | Maximum
Equity-Based Compensation
Threshold Percentage of Holding by Former Parent Company for Vesting of Performance Based Units				10.00%
Restricted Stock
Equity-Based Compensation
Issuance of restricted stock (in shares)	5,941,693
Vested				1,724,979
Class B Plan | Class B Units
Equity-Based Compensation
Number of units authorized (in units)		6,366,891		6,366,891

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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