DERIVATIVE INSTRUMENTS - Effect of Derivative Instruments Designated Cash Flow Hedges on Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Derivative Instruments, Gain (Loss) [Roll Forward]
Balance in AOCI Beginning of Period	$ 935	$ (602)	$ 1,871	$ 0
Amount of (Loss) Gain Recognized in AOCI- Effective Portion	297	618	(618)	16
Amount of Loss Reclassified from AOCI into Earnings-Effective Portion	(63)	0	(42)	0
Balance in AOCI End of Period	1,295	16	1,295	16
Interest rate swap \| Interest (expense)
Derivative Instruments, Gain (Loss) [Roll Forward]
Balance in AOCI Beginning of Period	935	(602)	1,871	0
Amount of (Loss) Gain Recognized in AOCI- Effective Portion	297	618	(618)	16
Amount of Loss Reclassified from AOCI into Earnings-Effective Portion	(63)	0	(42)	0
Balance in AOCI End of Period	$ 1,295	$ 16	$ 1,295	$ 16

Accumulated Other Comprehensive Income Loss Cumulative Changes in Net Gain Loss from Cash Flow Hedge Effect Before Tax

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4D
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624177-113959

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- Definition

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

+ References

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