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VESSEL ACQUISITIONS AND DISPOSITIONS (Details) $ in Thousands |  |  |  |  |  |  |  |  | 6 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 12, 2016 USD ($) | Nov. 04, 2016 USD ($) | Oct. 26, 2016 USD ($) | Oct. 21, 2016 USD ($) | Oct. 20, 2016 USD ($) | May 17, 2016 USD ($) | May 06, 2016 USD ($) | Dec. 30, 2014 USD ($) | Dec. 31, 2014 USD ($) | Jul. 09, 2014 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Jul. 14, 2015 USD ($) | Jan. 01, 2014 USD ($) | Nov. 13, 2013 USD ($) item | Aug. 12, 2010 USD ($) item
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of time charters acquired |  |  |  |  |  |  |  |  | $ (450) |  |  |  |  |  |  |
Time charters acquired |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 0 |  |  |  |
Net proceeds from sale of vessel assets |  |  |  |  |  |  |  |  |  |  | 13,024 |  |  |  |  |
Genco Bourgogne, Genco Muse, and Genco Spirit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of time charters acquired |  |  |  |  |  |  |  |  | (450) |  | 0 | 0 |  |  |  |
Time charters acquired |  |  |  |  |  |  |  |  |  | $ 450 |  |  |  |  |  |
Genco Marine |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of assets |  |  |  |  |  |  | $ 2,187 |  |  |  |  |  |  |  |  |
Broker commission (as a percent) |  |  |  |  |  |  | 2.00% |  |  |  |  |  |  |  |  |
Loss on sale of vessels |  |  |  |  |  | $ 77 |  |  |  |  |  |  |  |  |  |
Net proceeds from sale of vessel assets |  |  |  |  |  | $ 1,923 |  |  |  |  |  |  |  |  |  |
Baltic Trading |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capitalized interest associated with new building contracts |  |  |  |  |  |  |  |  | 400 |  | 0 | 372 |  |  |  |
Baltic Trading | Baltic Wasp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Final payment for vessel |  |  |  |  |  |  |  | $ 19,645 |  |  |  |  |  |  |  |
Predecessor |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of time charters acquired |  |  |  |  |  |  |  |  |  | 68 |  |  |  |  |  |
Predecessor | Baltic Trading |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capitalized interest associated with new building contracts |  |  |  |  |  |  |  |  |  | 295 |  |  |  |  |  |
Predecessor | Yangfan Group Co., LTD | Agreement to Purchase Ultramax Drybulk Vessels | Baltic Trading |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price per vessel |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 28,000 |
Capacity of vessels | item |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 64,000 |
Number of vessels purchased | item |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |
Predecessor | Yangfan Group Co., LTD | Agreement to Purchase Ultramax Drybulk Vessels | Baltic Trading | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of vessels committed to be acquired under purchase agreement | item |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 |
Aggregate purchase price for vessels |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 112,000 |
Number of vessels purchased under option to be acquired per purchase agreement | item |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |
Line of Credit Facility | $148 Million Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount of term loan facility |  |  |  |  |  |  |  |  | 148,000 |  | 148,000 | 148,000 | $ 148,000 |  |  |
Secured Debt | $100 Million Term Loan Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount of term loan facility |  |  |  |  |  |  |  |  |  |  | 100,000 | 100,000 |  |  |  |
Repayments of Secured Debt |  |  |  |  |  |  |  |  | $ 3,846 |  | $ 60,099 | $ 7,692 |  |  |  |
Secured Debt | Predecessor | $100 Million Term Loan Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of vessels purchased | item |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5
Face amount of term loan facility |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100,000 |  | $ 100,000
Repayments of Secured Debt |  |  |  |  |  |  |  |  |  | $ 3,846 |  |  |  |  |  |
Genco Acheron |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of assets | $ 3,480 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Broker commission (as a percent) | 5.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Genco Pioneer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of assets |  |  | $ 2,650 |  |  |  |  |  |  |  |  |  |  |  |  |
Broker commission (as a percent) |  |  | 5.50% |  |  |  |  |  |  |  |  |  |  |  |  |
Genco Pioneer | Line of Credit Facility | $148 Million Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of Secured Debt |  |  | $ 2,504 |  |  |  |  |  |  |  |  |  |  |  |  |
Genco Sugar |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of assets |  |  |  |  | $ 2,450 |  |  |  |  |  |  |  |  |  |  |
Broker commission (as a percent) |  |  |  |  | 5.50% |  |  |  |  |  |  |  |  |  |  |
Genco Sugar | Secured Debt | $100 Million Term Loan Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of Secured Debt |  |  |  | $ 2,315 |  |  |  |  |  |  |  |  |  |  |  |
Genco Leader |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of assets |  | $ 3,470 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Broker commission (as a percent) |  | 3.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Genco Leader | Line of Credit Facility | $148 Million Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of Secured Debt |  | $ 3,366 |  |  |  |  |  |  |  |  |  |  |  |  |  |

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