LEASES (Components of Lease Expense) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Leases [Abstract]
Operating lease cost	$ 7,540
Amortization of right-of-use assets	484
Interest on lease liabilities	28
Total finance lease cost	512
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	7,563
Operating cash flow from finance leases	28
Financing cash flows from finance leases	653
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	76,983
Finance lease	$ 0