DEBT - Schedule of Operating and Capital Lease (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2017	$ 3,350
2018	3,434
2019	3,519
2020	3,607
2021	3,698
Thereafter	36,568
Total minimum lease payments	54,176
Less: interest	(19,242)
Capital lease obligations	34,934
Less: current portion	(1,122)	$ (973)
Long-term capital lease obligations	33,812
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2017	648
2018	566
2019	468
2020	393
2021	55
Thereafter	0
Total minimum lease payments	$ 2,130