NET LOSS PER SHARE - Schedule of Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024
Earnings Per Share, Basic [Abstract]
Net loss	$ (12,585)	$ (20,340)	$ (25,120)	$ (23,420)	$ (33,290)	$ (35,731)	$ (58,045)	$ (92,441)
Weighted-average shares outstanding - basic (in shares)	42,607,717			38,381,968			41,457,027	37,286,911
Weighted-average shares outstanding - diluted (in shares)	42,607,717			38,381,968			41,457,027	37,286,911
Net loss per share - basic (usd per share)	$ (0.30)			$ (0.61)			$ (1.40)	$ (2.48)
Net loss per share - diluted (usd per share)	$ (0.30)			$ (0.61)			$ (1.40)	$ (2.48)