Income Taxes - Unrecognized Tax Benefits Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Unrecognized Tax Benefits Reconciliation
Balance at beginning of year	$ 62,203	$ 52,986	$ 35,879
Additions based on tax positions taken during a prior period	2,528	8,574	13,018
Reductions based on tax positions taken during a prior period	(1,542)	(1,749)	(86)
Additions based on tax positions taken during the current period	9,326	5,174	8,926
Reductions based on tax positions taken during the current period	(370)	(831)	(259)
Reductions related to settlement of tax matters	(692)	(538)	0
Reductions related to a lapse of applicable statute of limitations	(31)	(1,413)	(4,492)
Balance at end of year	71,422	62,203	$ 52,986
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	$ 9,091	$ 8,100