CONDENSED CONSOLIDATED STATEMENTS OF REDEEMABLE CONVERTIBLE AND CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY (DEFICIT) - USD ($)	Total	Series A Redeemable Convertible Preferred Stock	Series B Convertible Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Losses	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2020		45,000,000	0
Beginning balance at Dec. 31, 2020		$ 31,136,000	$ 0
Temporary Equity [Abstract]
Accretion of preferred stock to redemption value		$ 1,194,000
Ending balance (in shares) at Mar. 31, 2021		45,000,000	0
Ending balance at Mar. 31, 2021		$ 32,330,000	$ 0
Beginning balance (in shares) at Dec. 31, 2020				28,489,599
Beginning balance at Dec. 31, 2020	$ 2,338,000			$ 0	$ 8,347,000	$ 0	$ (6,009,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accretion of redeemable convertible preferred stock to redemption value	(1,194,000)				(1,194,000)
Issuance of common stock and settlement of the anti-dilution obligation (in shares)				1,443,638
Stock-based compensation expense	206,000				206,000
Net loss	(86,660,000)						(86,660,000)
Ending balance (in shares) at Mar. 31, 2021				29,933,237
Ending balance at Mar. 31, 2021	(85,310,000)			$ 0	7,358,000	0	(92,669,000)
Beginning balance (in shares) at Dec. 31, 2020		45,000,000	0
Beginning balance at Dec. 31, 2020		$ 31,136,000	$ 0
Temporary Equity [Abstract]
Accretion of preferred stock to redemption value	1,468,000
Ending balance (in shares) at Sep. 30, 2021		115,761,842	45,658,957
Ending balance at Sep. 30, 2021		$ 196,157,000	$ 199,643,000
Beginning balance (in shares) at Dec. 31, 2020				28,489,599
Beginning balance at Dec. 31, 2020	2,338,000			$ 0	8,347,000	0	(6,009,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(102,456,000)
Change in unrealized gain on investments, net of tax	(9,000)
Ending balance (in shares) at Sep. 30, 2021				32,413,860
Ending balance at Sep. 30, 2021	(94,418,000)			$ 0	14,055,000	(9,000)	(108,465,000)
Beginning balance (in shares) at Mar. 31, 2021		45,000,000	0
Beginning balance at Mar. 31, 2021		$ 32,330,000	$ 0
Temporary Equity [Abstract]
Accretion of preferred stock to redemption value		$ 274,000
Issuance of redeemable convertible preferred stock including settlement of the third and fourth tranche right liability and issuance of convertible stock, net of issuance costs (in shares)		70,761,842	45,658,957
Issuance of redeemable convertible preferred stock including settlement of the third and fourth tranche right liability and issuance of convertible stock, net of issuance costs (in shares)		$ 71,719,000	$ 199,643,000
Reclassification of preferred stock tranche liability upon settlement		$ 91,834,000
Ending balance (in shares) at Jun. 30, 2021		115,761,842	45,658,957
Ending balance at Jun. 30, 2021		$ 196,157,000	$ 199,643,000
Beginning balance (in shares) at Mar. 31, 2021				29,933,237
Beginning balance at Mar. 31, 2021	(85,310,000)			$ 0	7,358,000	0	(92,669,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of Series A redeemable convertible preferred stock, including the settlement of the third and fourth tranche right liability, net of issuance costs of $41	(998,000)				(998,000)
Accretion of redeemable convertible preferred stock to redemption value	(274,000)				(274,000)
Issuance of common stock and settlement of the anti-dilution obligation	7,536,000				7,536,000
Issuance of common stock and settlement of the anti-dilution obligation (in shares)				2,498,850
Stock-based compensation expense	94,000				94,000
Net loss	616,000						616,000
Change in unrealized gain on investments, net of tax	(34,000)					(34,000)
Ending balance (in shares) at Jun. 30, 2021				32,432,087
Ending balance at Jun. 30, 2021	(78,370,000)			$ 0	13,716,000	(34,000)	(92,053,000)
Ending balance (in shares) at Sep. 30, 2021		115,761,842	45,658,957
Ending balance at Sep. 30, 2021		$ 196,157,000	$ 199,643,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchase of unvested restricted common stock (in shares)				(18,227)
Stock-based compensation expense	339,000				339,000
Net loss	(16,412,000)						(16,412,000)
Change in unrealized gain on investments, net of tax	25,000					25,000
Ending balance (in shares) at Sep. 30, 2021				32,413,860
Ending balance at Sep. 30, 2021	$ (94,418,000)			$ 0	14,055,000	(9,000)	(108,465,000)
Beginning balance (in shares) at Dec. 31, 2021	161,420,799	115,761,842	45,658,957
Beginning balance at Dec. 31, 2021	$ 395,800,000	$ 196,157,000	$ 199,643,000
Ending balance (in shares) at Mar. 31, 2022		115,761,842	45,658,957
Ending balance at Mar. 31, 2022		$ 196,157,000	$ 199,643,000
Beginning balance (in shares) at Dec. 31, 2021	32,413,860			32,413,860
Beginning balance at Dec. 31, 2021	$ (156,240,000)			$ 0	15,163,000	(27,000)	(171,376,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclassification of related party forward contract	12,020,000			$ 1,101,525	12,020,000
Stock-based compensation expense	1,123,000				1,123,000
Net loss	(23,840,000)						(23,840,000)
Change in unrealized gain on investments, net of tax	(5,000)					(5,000)
Ending balance (in shares) at Mar. 31, 2022				33,515,385
Ending balance at Mar. 31, 2022	$ (166,942,000)			$ 0	28,306,000	(32,000)	(195,216,000)
Beginning balance (in shares) at Dec. 31, 2021	161,420,799	115,761,842	45,658,957
Beginning balance at Dec. 31, 2021	$ 395,800,000	$ 196,157,000	$ 199,643,000
Temporary Equity [Abstract]
Accretion of preferred stock to redemption value	$ 0
Ending balance (in shares) at Sep. 30, 2022	161,420,799	115,761,842	45,658,957
Ending balance at Sep. 30, 2022	$ 395,800,000	$ 196,157,000	$ 199,643,000
Beginning balance (in shares) at Dec. 31, 2021	32,413,860			32,413,860
Beginning balance at Dec. 31, 2021	$ (156,240,000)			$ 0	15,163,000	(27,000)	(171,376,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)	55,687
Net loss	$ (82,538,000)
Change in unrealized gain on investments, net of tax	$ (427,000)
Ending balance (in shares) at Sep. 30, 2022	33,559,912			33,559,912
Ending balance at Sep. 30, 2022	$ (223,096,000)			$ 0	31,272,000	(454,000)	(253,914,000)
Beginning balance (in shares) at Mar. 31, 2022		115,761,842	45,658,957
Beginning balance at Mar. 31, 2022		$ 196,157,000	$ 199,643,000
Ending balance (in shares) at Jun. 30, 2022		115,761,842	45,658,957
Ending balance at Jun. 30, 2022		$ 196,157,000	$ 199,643,000
Beginning balance (in shares) at Mar. 31, 2022				33,515,385
Beginning balance at Mar. 31, 2022	(166,942,000)			$ 0	28,306,000	(32,000)	(195,216,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchase of unvested restricted common stock (in shares)				(3,116)
Stock-based compensation expense	1,345,000				1,345,000
Net loss	(29,348,000)						(29,348,000)
Change in unrealized gain on investments, net of tax	(118,000)					(118,000)
Ending balance (in shares) at Jun. 30, 2022				33,512,269
Ending balance at Jun. 30, 2022	$ (195,063,000)			$ 0	29,651,000	(150,000)	(224,564,000)
Ending balance (in shares) at Sep. 30, 2022	161,420,799	115,761,842	45,658,957
Ending balance at Sep. 30, 2022	$ 395,800,000	$ 196,157,000	$ 199,643,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)				55,687
Issuance of common stock upon exercise of stock options	204,000				204,000
Repurchase of unvested restricted common stock (in shares)				(8,044)
Stock-based compensation expense	1,417,000				1,417,000
Net loss	(29,350,000)						(29,350,000)
Change in unrealized gain on investments, net of tax	$ (304,000)					(304,000)
Ending balance (in shares) at Sep. 30, 2022	33,559,912			33,559,912
Ending balance at Sep. 30, 2022	$ (223,096,000)			$ 0	$ 31,272,000	$ (454,000)	$ (253,914,000)