Income Taxes - Loss Before Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Domestic	$ (109,393)	$ (16,934)	$ (71,644)
Foreign	(1,402)	(1,053)	(330)
Loss before income taxes	$ (110,795)	$ (17,987)	$ (71,974)