Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits, beginning of year	$ 2,323	$ 2,374		$ 2,338		$ 2,330
Additions for tax positions taken in prior years	0	133		4		44
Reductions for tax positions taken in prior years	0	0		0		(81)
Additions for tax positions related to the current year	51	103		109		87
Lapses of statutes of limitations	0	0		(20)		(42)
Other	0	(828)		(108)		0
Unrecognized tax benefits, end of year	2,374	1,782	$ 2,374	$ 2,323		$ 2,338
Unrecognized tax benefits that would impact effective tax rate, if recognized		1,700
Income tax penalties and interest expense		100	100		$ 400
Cumulative liability for interest and penalties related to uncertain tax positions	$ 2,200	2,300	$ 2,200
Previously unrecognized tax benefit likely to be recognized within the next 12 months		$ 100