Stock-Based Awards - Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Options, Number of Shares
Number of Shares, beginning balance	6,721,967	6,419,455
Number of Shares, Granted	5,407,305	2,608,700
Number of Shares, Exercised		(162,388)
Number of Shares, Forfeited and cancelled	(859,873)	(2,143,800)
Number of Shares, ending balance	11,269,399	6,721,967	6,419,455
Number of Shares, Options vested and expected to vest	11,269,399
Number of Shares, Options exercisable	4,174,406
Options, Weighted Average Exercise Price
Weighted Average Exercise Price, beginning balance (in dollars per share)	$ 11.12	$ 15.94
Weighted Average Exercise Price, Granted (in dollars per share)	2.18	1.86
Weighted Average Exercise Price, Exercised (in dollars per share)		1.31
Weighted Average Exercise Price, Forfeited and cancelled (in dollars per share)	13.32	15.06
Weighted Average Exercise Price, ending balance (in dollars per share)	6.72	$ 11.12	$ 15.94
Weighted Average Exercise Price, Options vested and expected to vest (in dollars per share)	6.72
Weighted Average Exercise Price, Options exercisable (in dollars per share)	$ 12.72
Options, Weighted Average Remaining Contractual Term
Weighted Average Remaining Contractual Term (in years)	7 years 8 months 12 days	6 years 9 months 18 days	7 years 1 month 6 days
Weighted Average Remaining Contractual Term, Options vested and expected to vest (in years)	7 years 8 months 12 days
Weighted Average Remaining Contractual Term, Options exercisable (in years)	5 years 9 months 18 days
Aggregate Intrinsic Value
Aggregate Intrinsic Value	$ 8,597	$ 2,968	$ 14
Aggregate Intrinsic Value, Exercised		$ 285
Aggregate Intrinsic Value, Options vested and expected to vest	8,597
Aggregate Intrinsic Value, Options exercisable	$ 2,503
Weighted average grant-date fair value of stock options granted (in dollars per share)	$ 1.61	$ 1.34