Income Taxes Income Taxes - Unrecognized Tax Benefit Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of the unrecognized tax benefit
Beginning balance	$ 18,892	$ 18,453	$ 19,560
Additions based on tax positions related to current year	2,246	2,397	2,227
Additions based on tax positions related to prior years	632		2,047
Reductions based on settlement refunds from government authorities			(4,414)
Reductions based on tax positions related to prior years	(138)	(73)	(51)
Reductions based on lapse of statute of limitations	(2,038)	(1,885)	(916)
Ending balance	$ 19,594	$ 18,892	$ 18,453