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Stock-Based Compensation - Restricted Stock and RSUs to be Settled in Common Stock (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-cash stock compensation expense	$ 88,259	$ 91,641	$ 52,013
Restricted Stock Units to be Settled in Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of vested restricted stock	125,700	51,600	48,700
Non-cash stock compensation expense	67,300	$ 55,700	$ 45,500
Unrecognized compensation cost, related to unvested restricted stock, total	$ 139,500
Expected weighted average period to recognize compensation cost on RSUs to be settled in common stock (in years)	4 years 6 months 14 days
Restricted Stock Units to be Settled in Common Stock \| Equal Installments
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Restricted Stock Units to be Settled in Common Stock \| Minimum \| Unequal Installments
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	5 years
Restricted Stock Units to be Settled in Common Stock \| Maximum \| Unequal Installments
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	10 years