NET LOSS PER SHARE - Computation of Net Loss Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Numerator:
Net loss	$ (16,454)	$ (17,121)	$ (42,972)	$ (43,894)
Denominator:
Shares used in computing net loss per share - basic (in shares)	234,571,192	214,951,127	233,818,576	211,009,029
Shares used in computing net loss per share - diluted (in shares)	234,571,192	214,951,127	233,818,576	211,009,029
Net loss per share of common stock - basic (in dollars per share)	$ (0.07)	$ (0.08)	$ (0.18)	$ (0.21)
Net loss per share of common stock - diluted (in dollars per share)	$ (0.07)	$ (0.08)	$ (0.18)	$ (0.21)