LEASES - Supplemental Lease Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating cash flow information:
Cash paid for amounts included in the measurement of lease liabilities	$ 1,730	$ 1,692
Non-cash activity:
Right-of-use assets obtained in exchange for operating lease obligations	$ 0	$ 22,188