STOCK-BASED COMPENSATION - RSU Activity Narrative (Details) - Restricted stock units - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of awards vested	$ 2.6
The 2014 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of awards vested		$ 4.0	$ 4.1
The 2014 Plan | Share-based Payment Arrangement, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)		1 year
Vesting (as a percent)		100.00%
The 2014 Plan | Share-based Payment Arrangement, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)		3 years
Vesting (as a percent)		33.00%