Income Taxes - Income Tax Expense Components (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current:
Federal	$ 15,961	$ 14,645	$ 14,123
State	3,494	5,198	5,698
Foreign	687	1,736	1,537
Total current	20,142	21,579	21,358
Deferred:
Federal	4,724	(1,721)	320
State	4,395	314	(25)
Foreign	(303)	(458)	(418)
Total deferred	8,816	(1,865)	(123)
Income tax expense	$ 28,958	$ 19,714	$ 21,235