Condensed Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit) (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Redeemable Convertible Preferred Stock
Beginning balance at Dec. 31, 2020	$ (272,102)	$ 3	$ 124,755	$ 187	$ (397,047)
Beginning balance, shares at Dec. 31, 2020						85,331,278
Beginning balance at Dec. 31, 2020						$ 727,474
Beginning balance, shares at Dec. 31, 2020		30,707,113
Exercise of stock options	11,038		11,038
Exercise of stock options, shares		1,264,484
Stock-based compensation	9,710		9,710
Stock-based compensation						$ 676
Foreign currency translation adjustment	(24)			(24)
Net loss	(13,732)				(13,732)
Ending balance at Mar. 31, 2021	(265,110)	$ 3	145,503	163	(410,779)
Ending balance, shares at Mar. 31, 2021						85,331,278
Ending balance at Mar. 31, 2021						$ 728,150
Ending balance, shares at Mar. 31, 2021		31,971,597
Beginning balance at Dec. 31, 2020	(272,102)	$ 3	124,755	187	(397,047)
Beginning balance, shares at Dec. 31, 2020						85,331,278
Beginning balance at Dec. 31, 2020						$ 727,474
Beginning balance, shares at Dec. 31, 2020		30,707,113
Net loss	(214,193)
Ending balance at Sep. 30, 2021	1,121,585	$ 13	1,733,411	(599)	(611,240)
Ending balance, shares at Sep. 30, 2021		131,956,462
Beginning balance at Mar. 31, 2021	(265,110)	$ 3	145,503	163	(410,779)
Beginning balance, shares at Mar. 31, 2021						85,331,278
Beginning balance at Mar. 31, 2021						$ 728,150
Beginning balance, shares at Mar. 31, 2021		31,971,597
Exercise of stock options	17,658		17,658
Exercise of stock options, shares		1,644,603
Stock-based compensation	138,055		138,055
Stock-based compensation						225
Conversion of redeemable convertible preferred stock to common stock upon initial public offering	728,375	$ 9	728,366			$ (728,375)
Conversion of redeemable convertible preferred stock to common stock, shares		85,331,278				(85,331,278)
Issuance of common stock upon initial public offering, net of underwriting discounts and offering costs	657,618	$ 1	657,617
Issuance of common stock upon initial public offering, net of underwriting discounts and offering costs, shares		10,410,000
Issuance of common stock, net of common stock withheld for tax liability upon settlement of restricted stock units	(15)		(15)
Issuance of common stock, net of common stock withheld for tax liability, upon settlement of restricted stock units, shares		1,709,527
Foreign currency translation adjustment	(200)			(200)
Net loss	(149,719)				(149,719)
Ending balance at Jun. 30, 2021	1,126,662	$ 13	1,687,184	(37)	(560,498)
Ending balance, shares at Jun. 30, 2021		131,067,005
Exercise of stock options	5,782		5,782
Exercise of stock options, shares		529,934
Stock-based compensation	40,434		40,434
Issuance of common stock upon settlement of restricted stock units, shares		359,523
Offering costs	11		11
Foreign currency translation adjustment	(562)			(562)
Net loss	(50,742)				(50,742)
Ending balance at Sep. 30, 2021	1,121,585	$ 13	1,733,411	(599)	(611,240)
Ending balance, shares at Sep. 30, 2021		131,956,462
Beginning balance at Dec. 31, 2021	1,189,289	$ 13	1,852,071	(583)	(662,212)
Beginning balance, shares at Dec. 31, 2021		134,046,926
Exercise of stock options	6,795		6,795
Exercise of stock options, shares		697,998
Stock-based compensation	39,375		39,375
Issuance of common stock upon settlement of restricted stock units, shares		706,663
Foreign currency translation adjustment	345			345
Net loss	(71,419)				(71,419)
Ending balance at Mar. 31, 2022	1,164,385	$ 13	1,898,241	(238)	(733,631)
Ending balance, shares at Mar. 31, 2022		135,451,587
Beginning balance at Dec. 31, 2021	$ 1,189,289	$ 13	1,852,071	(583)	(662,212)
Beginning balance, shares at Dec. 31, 2021		134,046,926
Exercise of stock options, shares	1,498,783
Net loss	$ (215,747)
Ending balance at Sep. 30, 2022	1,124,301	$ 14	2,004,995	(2,749)	(877,959)
Ending balance, shares at Sep. 30, 2022		137,968,304
Beginning balance at Mar. 31, 2022	1,164,385	$ 13	1,898,241	(238)	(733,631)
Beginning balance, shares at Mar. 31, 2022		135,451,587
Exercise of stock options	8,220		8,220
Exercise of stock options, shares		509,505
Stock-based compensation	35,790		35,790
Issuance of common stock upon settlement of restricted stock units	1	$ 1
Issuance of common stock upon settlement of restricted stock units, shares		552,401
Issuance of common stock for employee stock purchase plan	11,513		11,513
Issuance of common stock for employee stock purchase plan, shares		286,997
Adjustment of holdback share release for business combination, shares		(605)
Foreign currency translation adjustment	(791)			(791)
Net loss	(73,123)				(73,123)
Ending balance at Jun. 30, 2022	1,145,995	$ 14	1,953,764	(1,029)	(806,754)
Ending balance, shares at Jun. 30, 2022		136,799,885
Exercise of stock options	4,232		4,232
Exercise of stock options, shares		291,280
Stock-based compensation	46,999		46,999
Issuance of common stock upon settlement of restricted stock units, shares		877,139
Other comprehensive loss	(1,720)			(1,720)
Net loss	(71,205)				(71,205)
Ending balance at Sep. 30, 2022	$ 1,124,301	$ 14	$ 2,004,995	$ (2,749)	$ (877,959)
Ending balance, shares at Sep. 30, 2022		137,968,304