Income Taxes - Components of Provision for Income Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Federal
Current	$ 78	$ 80	$ 60
Deferred	(2)	1	0
Federal income taxes	76	81	60
State and Local
Current	262	126	85
State and local income taxes	262	126	85
Foreign
Current	3,804	3,033	2,375
Deferred	(2,292)	(2,471)	(2,310)
Foreign income taxes	1,512	562	65
Total Provision for Income Taxes	$ 1,850	$ 769	$ 210