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DEBT (Details) $ in Thousands		6 Months Ended
	Jun. 08, 2016 USD ($)	Jun. 30, 2016 USD ($) item	Jul. 01, 2016	Jun. 29, 2016 USD ($)	Jun. 28, 2016	Dec. 31, 2015 USD ($)	Nov. 04, 2015 USD ($)	Jul. 14, 2015 USD ($)	Jun. 30, 2015 USD ($)	Apr. 07, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 03, 2013 USD ($)	Aug. 30, 2013 USD ($)	Aug. 20, 2010 USD ($)	Aug. 12, 2010 USD ($)
Line of Credit Facility
Principal amount		$ 561,656				$ 588,434
Less: Unamortized debt issuance costs		(8,355)				(9,411)
Current portion		$ (553,301)				(579,023)
Number of credit facilities | item		9
Number of credit facilities with waiver | item		9
Scenario Adjustment | Adoption Of ASU 2015-03
Line of Credit Facility
Current portion						9,411
Deferred financing costs, net						9,411
$98 Million Credit Facility Commitment Letter
Line of Credit Facility
Maximum borrowing capacity		$ 98,000
Collateral security maintenance test (as a percent)				120.00%	140.00%
Minimum | $98 Million Credit Facility Commitment Letter
Line of Credit Facility
Minimum Cash Requirement For Specified Period				$ 25,000
Minimum | Commitment Letter
Line of Credit Facility
Equity Financing	$ 125,000
Minimum | Amended Commitment Letter
Line of Credit Facility
Minimum Cash Requirement For Specified Period		25,000
Maximum | Amended Commitment Letter
Line of Credit Facility
Maximum cash withdrawal under covenant		10,000
Reduction of cash under covenants (per vessel)		250
Centerbridge Partners L.P | Commitment Letter
Line of Credit Facility
Equity financing to be provided by each equity commitment	31,200
Strategic Value Partners LLC | Commitment Letter
Line of Credit Facility
Equity financing to be provided by each equity commitment	17,300
Apollo Global Management LLC | Commitment Letter
Line of Credit Facility
Equity financing to be provided by each equity commitment	14,000
Secured Debt | $100 Million Term Loan Facility
Line of Credit Facility
Principal amount		56,253				60,100
Less: Unamortized debt issuance costs		(1,037)				(1,201)
Current portion		(55,216)
Long-term debt		55,216				58,899
Maximum borrowing capacity		100,000							$ 100,000						$ 100,000
Secured Debt | $253 Million Term Loan Facility
Line of Credit Facility
Principal amount		135,118				145,268
Less: Unamortized debt issuance costs		(2,184)				(2,528)
Current portion		(132,934)
Long-term debt		132,934				142,740
Maximum borrowing capacity		253,000				253,000			253,000					$ 253,000
Secured Debt | $44 Million Term Loan Facility
Line of Credit Facility
Principal amount		37,125				38,500
Less: Unamortized debt issuance costs		(511)				(584)
Current portion		(36,614)
Long-term debt		36,614				37,916
Maximum borrowing capacity		44,000				44,000			44,000			$ 44,000
Secured Debt | $22 Million Term Loan Facility
Line of Credit Facility
Principal amount		17,875				18,625
Less: Unamortized debt issuance costs		(325)				(376)
Current portion		(17,550)
Long-term debt		17,550				18,249
Maximum borrowing capacity		$ 22,000				22,000		$ 22,000	22,000				$ 22,000
Collateral security maintenance test (as a percent)		110.00%	125.00%
Secured Debt | 2014 Term Loan Facilities
Line of Credit Facility
Principal amount		$ 29,688				31,069
Less: Unamortized debt issuance costs		(1,620)				(1,715)
Secured Debt | 2014 Term Loan Facilities | Period from December 31, 2015 to March 30, 2016
Line of Credit Facility
Collateral security maintenance test (as a percent)								130.00%
Secured Debt | Commitment Letter
Line of Credit Facility
Maximum borrowing capacity	$ 400,000
Revolving Credit Facility | 2015 Revolving Credit Facility
Line of Credit Facility
Principal amount		52,935				56,218
Current portion		(52,935)
Long-term debt		52,935				56,218
Maximum borrowing capacity										$ 59,500
Line of Credit Facility | $98 Million Credit Facility
Line of Credit Facility
Principal amount		98,271				98,271
Less: Unamortized debt issuance costs		(2,119)				(2,368)
Current portion		(96,152)
Long-term debt		96,152				95,903
Maximum borrowing capacity		98,000				98,000	$ 98,000
Line of Credit Facility | $98 Million Credit Facility Commitment Letter
Line of Credit Facility
Maximum borrowing capacity		98,000		$ 98,000
Line of Credit Facility | $148 Million Credit Facility
Line of Credit Facility
Principal amount		134,391				140,383
Less: Unamortized debt issuance costs		(559)				(639)
Current portion		(133,832)
Maximum borrowing capacity		$ 148,000				$ 148,000		$ 148,000	$ 148,000		$ 148,000

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