Common Stock - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Number of Options Outstanding
Beginning balance (in shares)	6,849,412
Granted (in shares)	2,721,201
Exercised (in shares)	(252,517)
Forfeited or expired (in shares)	(276,242)
Ending balance (in shares)	9,041,854
Weighted Average Exercise Price Per Share
Beginning balance (in dollars per share)	$ 7.28
Granted (in dollars per share)	20.17
Exercised (in dollars per share)	4.30
Forfeited or expired (in dollars per share)	14.24
Ending balance (in dollars per share)	$ 11.03
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract]
Vested and exercisable (in shares)	4,876,287
Vested and expected to vest (in shares)	9,041,854
Vested and exercisable (in dollars per share)	$ 5.60
Vested and expected to vest (in dollars per share)	$ 11.03
Aggregate intrinsic value, outstanding	$ 268,925	$ 73,992
Aggregate intrinsic value, vested and exercisable	171,507
Aggregate intrinsic value, vested and expected to vest	$ 268,925