Debt - Senior Secured 5-Year Term Loan (Details) - USD ($)		3 Months Ended
	Feb. 09, 2021	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Line of Credit Facility
Long-term debt		$ 888,086,000		$ 890,323,000
Loss on early extinguishment of debt		19,401,000	$ 805,000
Cash paid for interest		13,528,000	$ 551,000
Senior Secured Term Loan | Maximum
Line of Credit Facility
Unrestricted cash requirement	$ 100,000,000
Senior Secured Term Loan | Minimum
Line of Credit Facility
Unrestricted cash requirement	$ 30,000,000
Five Year Term Loan
Line of Credit Facility
Interest expense		11,200,000
Cash paid for interest		$ 0
Five Year Term Loan | Senior Secured Term Loan
Line of Credit Facility
Debt instrument term (in years)	5 years	5 years
Long-term debt	$ 1,045,000,000.000	$ 1,036,400,000
Fee amount	13,000,000.0
Unamortized discount	20,900,000
Issuance costs		53,300,000
Deferred financing fees	$ 10,200,000	$ 14,000,000.0
Annualized amortization rate (percent)	10.00%
Annualized amortization rate EBITDA threshold (percent)	5.00%
Interest rate (as a percent)		9.40%
Amortization of deferred financing costs		$ 500,000
Amortization of original issue cost		(1,900,000)
Five Year Term Loan | Senior Secured Term Loan | LIBOR
Line of Credit Facility
Variable rate (percent)	7.00%
Five Year Term Loan | Senior Secured Term Loan | Base Rate
Line of Credit Facility
Variable rate (percent)	6.00%
Acquisition Term Loan
Line of Credit Facility
Loss on early extinguishment of debt		2,200,000
Interest expense		13,400,000
Cash paid for interest		13,400,000
Acquisition Term Loan | Senior Secured Term Loan
Line of Credit Facility
Principal outstanding	$ 1,043,000,000.000
Accrued interest	$ 13,300,000
Stated interest rate (as a percent)	11.50%
Issuance costs	$ 34,700,000
Loss on early extinguishment of debt	17,200,000	19,400,000
Deferred financing fees	$ 1,500,000
Amortization of original issue cost		$ (1,200,000)