NET LOSS PER SHARE - Schedule of Computations of Diluted Weighted-Average Shares Outstanding (Details) - shares	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options to purchase common stock (in shares)	20,323,393	18,955,152
Stock options to purchase common stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options to purchase common stock (in shares)	18,695,256	17,356,577
Common stock issuable upon conversion of Series A convertible preferred stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options to purchase common stock (in shares)	1,250,000	1,250,000
Unvested restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options to purchase common stock (in shares)	378,137	348,575