Income Taxes - Unrecognized Tax Benefits Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Unrecognized Tax Benefits [Roll Forward]
Balance at beginning of year	$ 23,516	$ 22,264
Reduction for tax positions related to prior year	(1,427)	(163)
Additions for tax positions related to prior year	1,947	0
Additions for tax positions related to current year	1,956	1,415
Balance at end of year	$ 25,992	$ 23,516