RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred financing costs	$ 576	$ 628
Deferred tax liabilities	4,988	0
Net Cash Provided by (Used in) Operating Activities	(97,147)	(66,856)	$ (46,318)
Net Cash Provided by (Used in) Financing Activities	63,213	80,495	32,392
Accounting Standards Update 2014-12 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net Cash Provided by (Used in) Operating Activities		1,200	600
Net Cash Provided by (Used in) Financing Activities		1,200	$ 600
Long-term Debt [Member] | Accounting Standards Update 2015-03 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred financing costs	$ 600
Deferred Financing Costs, Net [Member] | Accounting Standards Update 2015-03 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred financing costs		(600)
Accounting Adjustment One [Member] | Accounting Standards Update 2015-17 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred tax assets		5,800
Current deferred tax assets, net		(5,800)
Accounting Adjustment Two [Member] | Accounting Standards Update 2015-17 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred tax assets		3,800
Deferred tax liabilities		$ (3,800)