LEASES - Schedule of Lease Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Depreciation of finance leases	$ 1,037	$ 1,037
Interest on lease liabilities	431	468
Total finance lease cost	1,468	1,505
Operating lease cost	$ 41,663	$ 40,961	$ 37,000