SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Allowance for expected credit loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Changes in allowance for expected credit loss
Balance at Beginning of Period	$ 9,223
Charged to Expense, net	2,552	$ 1,837
Less: Deductions	(2,557)
Balance at End of Period	8,638	9,223
Adjusted Balance
Changes in allowance for expected credit loss
Balance at Beginning of Period	$ 8,643
Balance at End of Period		$ 8,643