Fair Value of Financial Instruments - Reconciliation of Redeemable Convertible Preferred Stock and Warrant Liability (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 2,976	$ 3,870
Issuances	74,284	15
Settlements	(2,976)	0
Change in fair value	(66,605)	(909)
Ending Balance	7,679	2,976
Redeemable convertible preferred stock tranche obligation
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	2,832	3,755
Issuances	0	0
Settlements	(2,832)	0
Change in fair value	0	(923)
Ending Balance	0	2,832
Historic warrants liability
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	144	115
Issuances	0	15
Settlements	(144)	0
Change in fair value	0	14
Ending Balance	0	144
Earnout shares liability
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	0
Issuances	74,284
Settlements	0
Change in fair value	(66,605)
Ending Balance	$ 7,679	$ 0