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GENERAL INFORMATION (Details 1) - USD ($) $ / shares in Units, $ in Thousands | Jul. 09, 2014 | Jul. 27, 2010 | Dec. 31, 2014 | Apr. 21, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Aug. 20, 2010 | Aug. 12, 2010
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Chapter 11 |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Distributable Value | $ 1,230,000 |  |  |  |  |  |  |
Previous period covered under precedent transaction methodology | 5 years |  |  |  |  |  |  |
2007 Credit Facility | Chapter 11 |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Bankruptcy claims settled by conversion into shares of entity (as a percent) | 100.00% |  |  |  |  |  |  |
$253 Million Term Loan Facility |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Floating rate debt |  |  | $ 165,568 |  |  |  |  |
Maximum borrowing capacity |  |  | 253,000 |  |  |  |  |
$253 Million Term Loan Facility | Chapter 11 |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  | 253,000 |  |  |  |  |
$100 Million Term Loan Facility |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Floating rate debt |  |  | 67,792 |  |  |  |  |
Maximum borrowing capacity |  |  | 100,000 |  |  |  |  |
$100 Million Term Loan Facility | Chapter 11 |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  | 100,000 |  |  |  |  |
Common Stock | Chapter 11 |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
New Genco MIP Primary Equity shares distribution as percentage of new stock | 1.80% |  |  |  |  |  |  |
Minimum percentage of new stock providing demand and piggyback registration rights under the registration rights agreement | 10.00% |  |  |  |  |  |  |
Common Stock | 2007 Credit Facility | Chapter 11 |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
New stock issued for bankruptcy claims settlement (as a percent) | 81.10% |  |  |  |  |  |  |
2010 Notes | Chapter 11 |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Bankruptcy claims settled by conversion into shares of entity (as a percent) | 100.00% |  |  |  |  |  |  |
2010 Notes | Common Stock | Chapter 11 |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
New stock issued for bankruptcy claims settlement (as a percent) | 8.40% |  |  |  |  |  |  |
Backstopped rights offering | Common Stock | Chapter 11 |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Percentage of new stock offered under offering | 8.70% |  |  |  |  |  |  |
Aggregate subscription price | $ 100,000 |  |  |  |  |  |  |
Backstopped rights offering | Common Stock | 2007 Credit Facility | Chapter 11 |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Maximum percentage of subscription of new stock under offering | 80.00% |  |  |  |  |  |  |
Backstopped rights offering | 2010 Notes | Chapter 11 |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Maximum percentage of subscription of new stock under offering | 20.00% |  |  |  |  |  |  |
New Genco Equity Warrants | Chapter 11 |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Subscription price (in dollars per share) | $ 20.99 |  |  |  |  |  |  |
Number of warrants issued for old common stock of Genco | 3,938,298 |  |  |  |  |  |  |
Class of Warrant or Right Term | 7 years |  |  |  |  |  |  |
New Genco Equity Warrants | Common Stock | Chapter 11 |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Number of shares of new stock in which each warrant or right can be converted | 1 |  |  |  |  |  |  |
Warrants exercisable as percentage of new stock | 6.00% |  |  |  |  |  |  |
Minimum | Chapter 11 |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Distributable Value |  |  | 1,100,000 |  |  |  |  |
Maximum | Chapter 11 |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Distributable Value |  |  | $ 1,400,000 |  |  |  |  |
Discounted Cash Flow Methodology Valuation Technique | Chapter 11 |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Weighted average cost of capital | 10.10% |  |  |  |  |  |  |
Projection period | 4 years |  |  |  |  |  |  |
Predecessor |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Outstanding amount of derivatives |  |  |  |  | $ 6,975 |  |  |
Predecessor | 2007 Credit Facility |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Floating rate debt |  |  |  |  | 1,055,912 |  |  |
Predecessor | 2007 Credit Facility | Chapter 11 | GS&T and wholly-owned subsidiaries excluding Baltic Trading Limited |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Floating rate debt |  |  |  | $ 1,055,912 |  |  |  |
Predecessor | $253 Million Term Loan Facility |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Floating rate debt |  |  |  |  | 180,793 |  |  |
Maximum borrowing capacity |  |  |  |  | 253,000 | $ 253,000 | $ 253,000 |
Predecessor | $253 Million Term Loan Facility | Chapter 11 | GS&T and wholly-owned subsidiaries excluding Baltic Trading Limited |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Floating rate debt |  |  |  | 175,718 |  |  |  |
Predecessor | $100 Million Term Loan Facility |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Floating rate debt |  |  |  |  | 75,484 |  |  |
Maximum borrowing capacity |  |  |  |  | 100,000 | $ 100,000 |  | $ 100,000
Predecessor | Interest rate swap | Chapter 11 | GS&T and wholly-owned subsidiaries excluding Baltic Trading Limited |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Outstanding amount of derivatives |  |  |  | 5,622 |  |  |  |
Predecessor | 2010 Notes |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Principal amount of the 2010 Notes |  |  |  |  | $ 125,000 |  |  |
Interest rate on convertible notes (as a percent) |  | 5.00% |  |  |  |  |  |
Weighted average cost of capital |  | 10.00% |  |  |  |  |  |
Predecessor | 2010 Notes | Chapter 11 | GS&T and wholly-owned subsidiaries excluding Baltic Trading Limited |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Principal amount of the 2010 Notes |  |  |  | $ 125,000 |  |  |  |
Interest rate on convertible notes (as a percent) |  |  |  | 5.00% |  |  |  |
Predecessor | $100 Million Term Loan Facility | Chapter 11 | GS&T and wholly-owned subsidiaries excluding Baltic Trading Limited |  |  |  |  |  |  |  |
GENERAL INFORMATION |  |  |  |  |  |  |  |
Floating rate debt |  |  |  | $ 73,561 |  |  |  |

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