GOODWILL AND INTANGIBLES (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Oct. 17, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill		$ 69,300		$ 69,300		$ 69,300
Carrying Value of Intangible Assets
Contractual rights		28,017		28,017		28,017
Accumulated amortization		(12,677)		(12,677)		(9,675)
Intangible assets, net		15,340		15,340		$ 18,342
Amortization		1,000	$ 1,000	3,000	$ 3,000
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Remainder of 2017		1,000		1,000
2018		4,000		4,000
2019		4,000		4,000
2020		4,000		4,000
2021		$ 2,300		$ 2,300
Subsequent Event
Subsequent Event [Line Items]
Definitive asset purchase agreement	$ 320,000