Condensed Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders’ Deficit - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Redeemable convertible preferred stock, beginning balance (in shares) at Dec. 31, 2020	85,391,338
Redeemable convertible preferred stock, beginning balance at Dec. 31, 2020	$ 274,104
Increase (Decrease) in Temporary Equity [Roll Forward]
Exercise of Series A-1 redeemable convertible preferred stock warrants (in shares)	12,595
Exercise of Series A-1 redeemable convertible preferred stock warrants	$ 163
Redeemable convertible preferred stock, ending balance balance (in shares) at Mar. 31, 2021	85,403,933
Redeemable convertible preferred stock, ending balance at Mar. 31, 2021	$ 274,267
Beginning balance (in shares) at Dec. 31, 2020		35,627,503
Beginning balance at Dec. 31, 2020	(260,685)	$ 0	$ 117,818	$ 0	$ (378,503)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	10,562		10,562
Exercise of stock options (in shares)		1,458,200
Exercise of stock options	4,698		4,698
Cumulative translation adjustment	0
Net loss	(17,989)				(17,989)
Ending balance (in shares) at Mar. 31, 2021		37,085,703
Ending balance at Mar. 31, 2021	$ (263,414)	$ 0	133,078	0	(396,492)
Redeemable convertible preferred stock, beginning balance (in shares) at Dec. 31, 2021	0
Redeemable convertible preferred stock, beginning balance at Dec. 31, 2021	$ 0
Redeemable convertible preferred stock, ending balance balance (in shares) at Mar. 31, 2022	0
Redeemable convertible preferred stock, ending balance at Mar. 31, 2022	$ 0
Beginning balance (in shares) at Dec. 31, 2021		139,164,693
Beginning balance at Dec. 31, 2021	389,700	$ 1	848,229	(1)	(458,529)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	14,930		14,930
Exercise of stock options (in shares)		376,578
Exercise of stock options	1,517		1,517
Vesting of restricted stock units (in shares)		32,145
Cumulative translation adjustment	10			10
Net loss	(25,649)				(25,649)
Ending balance (in shares) at Mar. 31, 2022		139,573,416
Ending balance at Mar. 31, 2022	$ 380,508	$ 1	$ 864,676	$ 9	$ (484,178)