LEASES - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 4,672	$ 4,513
Right-of-use assets obtained in exchange for lease liabilities
Right-of-use assets obtained in exchange for lease liabilities	$ 4,326	$ 2,935