Income Taxes - Loss Carryforwards and Other (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Mar. 31, 2022
Operating loss carryforwards
Federal deferred tax assets net operating loss carryforwards		$ 7,200
State deferred tax assets net operating loss carryforwards		3,200
Net deferred tax assets		83,982	$ 79,746
Reconciliation of the beginning and ending amount of unrecognized tax benefits, excluding accrued interest and penalties
Balance at beginning of year		28,756	10,199	$ 2,966
Additions based on tax positions related to current year		207
Additions based on tax positions related to prior years	$ 7,300	489	26,858	7,473
Reductions for tax positions related to prior years				(240)
Reductions for settlements with tax authorities	(8,300)		(8,301)
Balance at end of year		29,452	28,756	10,199
Interest and penalties accrued		0	0	0
Reduced provision for income taxes	$ 8,300		$ 8,301
Decrease in unrecognized tax benefits					$ 28,800
Federal
Operating loss carryforwards
Net operating loss carryforwards		34,200
State
Operating loss carryforwards
Net operating loss carryforwards		61,700
Increase in valuation allowance		400
Net deferred tax assets		$ 2,800