Income Taxes - Reconciliation of Unrecognized Tax Benefits (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]
Beginning balance	$ 3,050	$ 3,015	$ 10,429
Decreases related to tax positions taken during a prior year	0	0	(7,441)
Increases related to tax positions taken in the current year	685	35	79
Decreases related to expiration of statute of limitations	0	0	(52)
Ending balance	$ 3,735	$ 3,050	$ 3,015