LEASES (Lease Cost) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Leases [Abstract]
Operating lease cost	$ 1,550	$ 1,959	$ 4,989	$ 6,791
Variable lease cost	85	54	299	211
Total lease cost	$ 1,635	$ 2,013	$ 5,288	$ 7,002