Income Taxes Reconciliation of Tax Expense (Benefit) and Other (Details) - USD ($)		12 Months Ended
	Jul. 09, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount		$ 200,908,000	$ 48,519,000	$ (136,873,000)
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount		5,722,000	(260,000)	(2,771,000)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount		(10,318,000)	13,000	(105,000)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Amount		(2,578,000)	(3,346,000)	(2,508,000)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount		(1,643,000)	(883,000)	(1,113,000)
Income tax (expense) benefit		192,091,000	44,043,000	(143,370,000)
Proceeds from income tax refunds	$ 7,600,000
Unrecognized tax benefits [Roll Forward]
Unrecognized tax benefits		$ 446,000	$ 446,000	$ 446,000