SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Restructuring (Benefits) Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Restructuring Reserve [Roll Forward]
Charged to restructuring	$ 938	$ 429
Employee Termination Costs
Restructuring Reserve [Roll Forward]
Balance at beginning of period	895
Charged to restructuring	188
Payments and adjustments	(759)
Balance at end of period	324
Lease-Related Exit Costs
Restructuring Reserve [Roll Forward]
Balance at beginning of period	1,184
Charged to restructuring	525
Payments and adjustments	(218)
Balance at end of period	$ 1,491