LEASES - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Lease, Cost [Abstract]
Operating Lease, Cost	$ 2,020	$ 1,826
Short-term Lease, Cost	41	1
Variable Lease, Cost	641	597
Lease, Cost	$ 2,702	$ 2,424