Income Taxes - Components of Provision for Income Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current:
Domestic	$ 2,876	$ (12)	$ 11
Foreign	9,547	6,387	4,563
Deferred:
Domestic	0	0	(194)
Foreign	(1,907)	(2,360)	(745)
Provision for income taxes	$ 10,516	$ 4,015	$ 3,635