LEASES (Maturity Analysis on an Undiscounted Basis) (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018	Sep. 30, 2018
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2019 (remainder)	$ 13,260
2020	49,226
2021	45,559
2022	41,185
2023	36,641
Thereafter	607,307
Total minimum lease payments	793,178
Less: Lease payments representing interest	371,817
Present value of future minimum lease payments	421,361
Less: Current obligations under leases	30,282
Long-term lease obligations	$ 391,079	$ 0	$ 0