Income Taxes - Income Before Income Tax (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Domestic									$ (53,916)	$ (42,213)	$ (66,135)
Foreign									14,798	17,774	22,110
Loss Before Income Taxes	$ 3,553	$ (20,919)	$ (9,578)	$ (12,174)	$ (6,176)	$ (5,226)	$ (15,869)	$ 2,832	$ (39,118)	$ (24,439)	$ (44,025)