STOCK-BASED COMPENSATION - Summary of Company's Stock Option Activity and Related Information (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	9 Months Ended
	Jun. 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
Options exercised (in shares)	(24,208)
Options cancelled or forfeited (in shares)	(220,154)
Outstanding at end of period (in shares)	6,912,414
Options exercisable (in shares)	6,289,250
Options vested and expected to vest (in shares)	6,866,646
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)	2.76
Options cancelled or forfeited (in USD per share)	7.84
Options outstanding at end of period (in USD per share)	6.96
Options exercisable (in USD per share)	7.13
Options vested and expected to vest (in USD per share)	$ 6.99
Weighted- Average Remaining Contractual Life (Years)
Options outstanding (in years)	5 years 8 months 12 days	6 years 1 month 6 days
Options exercisable (in years)	5 years 6 months
Options vested and expected to vest (in years)	5 years 8 months 12 days
Aggregate Intrinsic Value
Options outstanding	$ 1,228		$ 5,203
Options exercisable	1,008
Options vested and expected to vest	$ 1,201