Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit) - USD ($)	Total	Redeemable Convertible Preferred Stock [Member]	Series D Redeemable Convertible Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]
Beginning Balance, Values at Dec. 31, 2019		$ 143,984,000
Beginning Balance, Shares at Dec. 31, 2019		111,748,065
Beginning Balance, Shares at Dec. 31, 2019				433,749
Beginning Balance, Values at Dec. 31, 2019	$ (100,454,000)			$ 4,000	$ 2,202,000	$ (80,000)	$ (102,580,000)
Accretion on redeemable convertible preferred stock		$ 705,000
Accretion on redeemable convertible preferred stock	(705,000)				(705,000)
Issuance of redeemable convertible preferred stock, net of issuance costs			$ 96,807,000
Issuance of redeemable convertible preferred stock, net of issuance costs and value of redeemable convertible preferred stock liability, Shares			71,719,859
Beneficial conversion feature on Series D redeemable convertible preferred stock			$ (6,297,000)
Beneficial conversion feature on Series D redeemable convertible preferred stock	6,297,000				6,297,000
Conversion of redeemable convertible preferred stock to common stock upon initial public offering	6,297,000	$ (241,418,000)
Conversion of redeemable convertible preferred stock to common stock upon initial public offering, Shares		(183,467,924)
Conversion of redeemable convertible preferred stock to common stock upon initial public offering	241,418,000			$ 21,000	241,397,000
Conversion of redeemable convertible preferred stock to common stock upon initial public offering, Shares				20,824,938
Deemed dividend of beneficial conversion feature on conversion of redeemable convertible preferred stock		$ 6,219,000
Deemed dividend of beneficial conversion feature on conversion of redeemable convertible preferred stock	(6,219,000)				(6,219,000)
Issuance of common stock in connection with initial public offering, net of issuance costs of $24,700	262,440,000			$ 13,000	262,427,000
Issuance of common stock in connection with initial public offering, net of issuance costs of $24,700, Shares				16,889,403
Stock-based compensation	4,888,000				4,888,000
Stock option exercises	22,000				22,000
Stock option exercises, Shares				9,528
Foreign currency translation adjustment	9,000					9,000
Unrealized loss on available-for-sale securities	(6,000)					(6,000)
Net loss	(63,412,000)						(63,412,000)
Ending Balance, Values at Dec. 31, 2020		$ 0
Ending Balance, Shares at Dec. 31, 2020		0
Ending Balance, Values at Dec. 31, 2020	344,278,000			$ 38,000	510,309,000	(77,000)	(165,992,000)
Ending Balance, Shares at Dec. 31, 2020				38,157,618
Stock-based compensation	16,262,000				16,262,000
Stock option exercises	$ 1,610,000			$ 1,000	1,609,000
Stock option exercises, Shares	391,349			391,349
Issuance of common stock per ESPP purchase	$ 185,000				185,000
Issuance of common stock per ESPP purchase, Shares				11,887
Foreign currency translation adjustment	(5,000)					(5,000)
Unrealized loss on available-for-sale securities	(98,000)					(98,000)
Net loss	(130,323,000)						(130,323,000)
Ending Balance, Values at Dec. 31, 2021	$ 231,909,000			$ 39,000	$ 528,365,000	$ (180,000)	$ (296,315,000)
Ending Balance, Shares at Dec. 31, 2021				38,560,854