Net Loss Per Common Share - Schedule of Dilutive Common Stock Equivalents (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Total antidilutive securities (in shares)	125,865	117,717	125,865	117,717
Warrant | Common stock warrants
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Total antidilutive securities (in shares)	38,904	215	38,904	215
Warrant | Redeemable convertible preferred stock warrants
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Total antidilutive securities (in shares)	0	1,305	0	1,305
Redeemable convertible preferred stock
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Total antidilutive securities (in shares)	30,604	62,240	30,604	62,240
Common stock options and RSUs
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Total antidilutive securities (in shares)	56,278	53,957	56,278	53,957
ESPP
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Total antidilutive securities (in shares)	79	0	79	0