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VESSEL ACQUISITIONS AND DISPOSITIONS (Details) - USD ($) $ in Thousands |  |  |  |  |  |  |  |  |  |  |  | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
May 16, 2017 | Mar. 19, 2017 | Feb. 16, 2017 | Feb. 09, 2017 | Jan. 09, 2017 | Dec. 12, 2016 | Nov. 04, 2016 | Oct. 26, 2016 | Oct. 21, 2016 | Oct. 20, 2016 | May 17, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2016 | Nov. 10, 2016 | Dec. 31, 2014 | Aug. 12, 2010
Line of Credit Facility | $148 Million Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount of term loan facility |  |  |  |  |  |  |  |  |  |  |  |  | $ 148,000 |  | $ 148,000 |  |  | $ 148,000 |
Secured Debt | $100 Million Term Loan Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of secured debt |  |  |  |  |  |  |  |  |  |  |  |  | 1,923 |  | 3,846 |  |  |  |
Face amount of term loan facility |  |  |  |  |  |  |  |  |  |  |  |  | 100,000 |  | 100,000 |  |  |  | $ 100,000
Secured Debt | $400 Million Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of secured debt |  |  |  |  |  |  |  |  |  |  |  | $ 100 | $ 0 | $ 200 | $ 0 |  |  |  |
Face amount of term loan facility |  |  |  |  |  |  |  |  |  |  |  | $ 400,000 |  | $ 400,000 |  | $ 400,000 | $ 400,000 |  |
Genco Prosperity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of assets | $ 3,050 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Broker commission (as a percent) | 3.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Genco Success |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of assets |  | $ 2,800 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Broker commission (as a percent) |  | 3.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Genco Carrier |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of assets |  |  | $ 3,560 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Brokerage commission |  |  | $ 92 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Genco Reliance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of assets |  |  |  | $ 3,500 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Broker commission (as a percent) |  |  |  | 3.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Genco Wisdom |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of assets |  |  |  |  | $ 3,250 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Broker commission (as a percent) |  |  |  |  | 3.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Genco Acheron |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of assets |  |  |  |  |  | $ 3,480 |  |  |  |  |  |  |  |  |  |  |  |  |
Broker commission (as a percent) |  |  |  |  |  | 5.50% |  |  |  |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of secured debt |  |  |  |  |  |  | $ 3,366 |  |  |  |  |  |  |  |  |  |  |  |
Face amount of term loan facility |  |  |  |  |  |  | $ 148,000 |  |  |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of secured debt |  |  |  |  |  |  |  | $ 2,504 |  |  |  |  |  |  |  |  |  |  |
Face amount of term loan facility |  |  |  |  |  |  |  | $ 148,000 |  |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of secured debt |  |  |  |  |  |  |  |  | $ 2,315 |  |  |  |  |  |  |  |  |  |
Face amount of term loan facility |  |  |  |  |  |  |  |  | $ 100,000 |  |  |  |  |  |  |  |  |  |
Genco Marine |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VESSEL ACQUISITIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of assets |  |  |  |  |  |  |  |  |  |  | $ 2,187 |  |  |  |  |  |  |  |
Broker commission (as a percent) |  |  |  |  |  |  |  |  |  |  | 2.00% |  |  |  |  |  |  |  |

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