STOCK-BASED COMPENSATION - Summary of Company's Stock Option Activity and Related Information (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Number of Stock Options Outstanding
Outstanding at beginning of period (in shares)	7,156,776
Option granted (in shares)	0	0
Options exercised (in shares)	(27,460)
Options cancelled or forfeited (in shares)	(331,784)
Outstanding at end of period (in shares)	6,797,532		7,156,776
Options exercisable (in shares)	6,362,900
Options vested and expected to vest (in shares)	6,765,944
Weighted- Average Exercise Price
Options outstanding at beginning of period (in USD per share)	$ 6.97
Options granted (in USD per share)	0
Options exercised (in USD per share)	2.75
Options cancelled or forfeited (in USD per share)	7.79
Options outstanding at end of period (in USD per share)	6.95		$ 6.97
Options exercisable (in USD per share)	7.12
Options vested and expected to vest (in USD per share)	$ 6.97
Weighted- Average Remaining Contractual Life (Years)
Options outstanding (in years)	5 years 6 months		6 years 1 month 6 days
Options exercisable (in years)	5 years 4 months 24 days
Options vested and expected to vest (in years)	5 years 6 months
Aggregate Intrinsic Value
Options outstanding	$ 2,277		$ 5,203
Options exercisable	1,837
Options vested and expected to vest	$ 2,230