LEASES - Components of Lease Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
LEASES
Operating lease expense	$ 38,794	$ 31,790	$ 26,552
Variable lease expense	6,804	4,188	4,128
Sublease income	(246)	(391)	(626)
Total operating lease expense	$ 45,352	$ 35,587	$ 30,054