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	$ 13,714	$ 13,544	$ 41,512	$ 40,878
Short-term lease cost (12 months or less)	369	291	1,070	938
Sublease income	(1,954)	(1,475)	(5,868)	(2,764)
Total lease cost, net	$ 12,129	$ 12,360	$ 36,714	$ 39,052