Income Taxes - Components of (Loss) Income Before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
United States	$ (85,391)	$ (39,390)	$ (19,092)
International	168	(158)	(113)
Loss before benefit from income taxes	$ (85,223)	$ (39,548)	$ (19,205)