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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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