SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Revision of Prior Period Financial Statements) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Proceeds from long-term obligations	$ 5,963	$ 225,236	$ 253,520
Repayments of long-term obligations	(55,314)	(16,981)	(778)
Net Cash Used by Financing Activities	$ (31,609)	(33,066)	$ (20,738)
As Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Proceeds from long-term obligations		209,236
Repayments of long-term obligations		(981)
Net Cash Used by Financing Activities		(33,066)
Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Proceeds from long-term obligations		16,000
Repayments of long-term obligations		$ (16,000)