LEASES - Other Information Related to Leases (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Leases [Abstract]
Operating cash flows from operating leases	$ 6,113	$ 12,185
Operating cash flows from finance leases	85	220
Financing cash flows from finance leases	66	139
Right-of-use asset obtained in exchange for operating lease obligation	1,313	7,781
Right-of-use asset obtained in exchange for finance lease obligation	$ 290	$ 290