LEASES - Supplemental Lease Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Operating cash flow information:
Cash paid for amounts included in the measurement of lease liabilities	$ 3,422	$ 3,347
Non-cash activity:
Right-of-use assets obtained in exchange for operating lease obligations	$ 27,321	$ 7,661