Income Taxes - Schedule of Components of Provision for Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current
Federal									$ 2,265	$ 2,533	$ 1,393
Foreign									4,418	4,929	4,738
State and local									580	1,137	700
Total current expense									7,263	8,599	6,831
Deferred expense
Federal									1,229	2,084	8,795
Foreign									351	(142)	12
State and local									260	368	704
Total deferred expense									1,840	2,310	9,511
Provision for income taxes	$ 2,556	$ 2,051	$ 706	$ 3,790	$ 2,362	$ 3,453	$ 3,186	$ 1,908	$ 9,103	$ 10,909	$ 16,342