LEASES - Schedule of Operating Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Leases [Abstract]
Rent expense	$ 2,900	$ 3,275	$ 8,748	$ 10,061
Variable lease payments	87	72	260	203
Sublease income	$ 999	1,035	$ 3,007	3,154
Weighted-average remaining lease term (in years)	6 years 4 months 24 days		6 years 4 months 24 days		7 years 4 months 24 days
Weighted-average discount rate	8.70%		8.70%		6.10%
Operating lease right-of-use assets recognized in exchange for new operating lease obligations	$ (19,961)	$ 0	$ (20,179)	$ 290