Income Taxes - Unrecognized Tax Benefits Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of period	$ 23,703	$ 48,305	$ 48,469
Gross reductions for tax positions related to prior years	0	(22,186)	0
Gross reductions for tax positions related to the lapse of applicable statute of limitations	(2,869)	(2,416)	(164)
Balance at end of period	$ 20,834	$ 23,703	$ 48,305