LEASES - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 6,011	$ 6,301
Operating cash flows from finance leases	0	2
Financing cash flows from finance leases	34	240
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	2,779	1,743
Finance leases	$ 0	$ 0