Income Taxes - Components for Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal	$ 6,010	$ 5,000	$ 4,030
State	2,433	2,724	1,222
Foreign	3,293	1,051	1,183
Total current	11,736	8,775	6,435
Deferred:
Federal	574	1,570	835
State	171	467	250
Foreign	(2,333)	4	293
Total deferred	(1,588)	2,041	1,378
Total provision for income taxes	$ 10,148	$ 10,816	$ 7,813