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STOCK-BASED COMPENSATION (Details) $ / shares in Units, $ in Thousands							6 Months Ended		12 Months Ended
	Dec. 18, 2014 shares	Aug. 07, 2014 USD ($) $ / shares shares	Aug. 06, 2014 shares	Dec. 19, 2013 shares	Dec. 13, 2012 shares	Mar. 15, 2010 item	Dec. 31, 2014 USD ($) $ / shares shares	Jul. 09, 2014 USD ($) $ / shares shares	Dec. 31, 2014 USD ($) item $ / shares shares	Dec. 31, 2013 USD ($) $ / shares shares	Dec. 31, 2012 USD ($) $ / shares shares	Mar. 13, 2014 shares	May. 17, 2012 shares	Mar. 03, 2010 shares	Jul. 05, 2005 shares
Predecessor
Number of Shares
Forfeited/Cancelled (in shares)										(21,500)	(1,500)
MIP Warrants
Additional disclosures
Total fair value of outstanding awards upon emergence from bankruptcy | $		$ 54,436
Genco Shipping and Trading Limited 2005 Equity Incentive Plan | Predecessor
Nonvested Stock Awards
Aggregate number of shares of common stock available for awards															2,000,000
2005 and 2012 GS&T Plans | Predecessor
Amortization
Number of anniversaries in which award vests								4 years
Number of Shares
Balance at the beginning of the period (in shares)								880,465	880,465	1,108,762	936,787
Granted (in shares)										200,634	464,175
Vested (in shares)								(880,465)		(407,431)	(290,700)
Forfeited/Cancelled (in shares)										(21,500)	(1,500)
Balance at the end of the period (in shares)										880,465	1,108,762
Weighted Average Grant Date Price
Balance at the beginning of the period (in dollars per share) | $ / shares								$ 7.77	$ 7.77	$ 9.47	$ 14.06
Granted (in dollars per share) | $ / shares										1.57	2.71
Vested (in dollars per share) | $ / shares								$ 7.77		9.46	13.49
Forfeited/Cancelled (in dollars per share) | $ / shares										5.53	6.39
Balance at the end of the period (in dollars per share) | $ / shares										$ 7.77	$ 9.47
Additional disclosures
Total fair value of shares vested | $								$ 691		$ 943	$ 733
Genco Shipping and Trading Limited 2012 Equity Incentive Plan | Predecessor
Nonvested Stock Awards
Aggregate number of shares of common stock available for awards													3,000,000
Baltic Trading Plan
Number of Shares
Granted (in shares)									1,086,345
Vested (in shares)									(525,930)
Balance at the end of the period (in shares)							1,941,844		1,941,844
Weighted Average Grant Date Price
Granted (in dollars per share) | $ / shares									$ 2.61
Vested (in dollars per share) | $ / shares									7.21
Balance at the end of the period (in dollars per share) | $ / shares							$ 3.80		$ 3.80
Baltic Trading Plan | Baltic Trading Limited
Amortization
Number of anniversaries in which award vests in connection with IPO | item						4
Number of anniversaries in which award vests not in connection with IPO | item									4
Additional disclosures
Total fair value of shares vested | $							$ 1,168
Unrecognized compensation cost related to nonvested stock awards [Abstract]
Unrecognized compensation cost | $							$ 5,273		$ 5,273
Weighted-average period for recognition of unrecognized compensation cost									3 years 3 months 11 days
Baltic Trading Plan | Predecessor
Number of Shares
Balance at the beginning of the period (in shares)								1,381,429	1,381,429	664,249	545,750
Granted (in shares)										998,680	299,999
Vested (in shares)										(281,500)	(181,500)
Balance at the end of the period (in shares)										1,381,429	664,249
Weighted Average Grant Date Price
Balance at the beginning of the period (in dollars per share) | $ / shares								$ 6.03	$ 6.03	$ 7.70	$ 11.60
Granted (in dollars per share) | $ / shares										5.60	3.04
Vested (in dollars per share) | $ / shares										8.48	11.71
Balance at the end of the period (in dollars per share) | $ / shares										$ 6.03	$ 7.70
Baltic Trading Plan | Predecessor | Baltic Trading Limited
Nonvested Stock Awards
Aggregate number of shares of common stock available for awards												6,000,000		2,000,000
Additional disclosures
Total fair value of shares vested | $								$ 1,143		$ 1,194	$ 663
2014 MIP Plan
Nonvested Stock Awards
Aggregate number of shares of common stock available for awards			250,000,000				9,668,061		9,668,061
Percentage of common stock outstanding ( In percent)							1.80%
Volatility rate ( as a percent)		43.91%
Volatility rate term		6 years
Risk-free interest rate ( as a percent)		1.85%
Dividend rate ( as a percent)		0.00%
Percentage of warrant vest for anniversaries of the grant date		33.33%
Amortization
Number of anniversaries in which award vests			3 years
Number of Shares
Granted (in shares)		1,110,600					1,110,600
Balance at the end of the period (in shares)							1,110,600		1,110,600
Weighted Average Grant Date Price
Granted (in dollars per share) | $ / shares							$ 20.00
Balance at the end of the period (in dollars per share) | $ / shares							$ 20.00		$ 20.00
Additional disclosures
Total fair value of shares vested | $							$ 0
Unrecognized compensation cost related to nonvested stock awards [Abstract]
Unrecognized compensation cost | $							16,748		$ 16,748
Weighted-average period for recognition of unrecognized compensation cost									2 years 7 months 6 days
2014 MIP Plan | MIP Warrants
Amortization
2015 | $							25,941		$ 25,941
2016 | $							11,496		11,496
2017 | $							$ 3,609		$ 3,609
Number of Shares
Granted (in shares)							8,557,461
Balance at the end of the period (in shares)							8,557,461		8,557,461
Weighted Average Exercise price
Granted (in dollars per share) | $ / shares							$ 30.31
Outstanding at the end of the period (in dollars per share) | $ / shares							30.31		$ 30.31
Weighted-average remaining contractual life									5 years 7 months 6 days
Weighted Average Grant Date Price
Granted (in dollars per share) | $ / shares							6.36
Balance at the end of the period (in dollars per share) | $ / shares							$ 6.36		$ 6.36
Unrecognized compensation cost related to nonvested stock awards [Abstract]
Unrecognized compensation cost | $							$ 41,046		$ 41,046
2014 MIP Plan | MIP Warrants | $25.91 Warrants
Nonvested Stock Awards
Aggregate number of shares of common stock available for awards		2,380,664
Strike price (in dollars per share) | $ / shares		$ 25.91
Fair value of warrant (in dollars per share) | $ / shares		$ 7.22
2014 MIP Plan | MIP Warrants | $28.73 Warrants
Nonvested Stock Awards
Aggregate number of shares of common stock available for awards		2,467,009
Strike price (in dollars per share) | $ / shares		$ 28.73
Fair value of warrant (in dollars per share) | $ / shares		$ 6.63
2014 MIP Plan | MIP Warrants | $34.19 Warrants
Nonvested Stock Awards
Aggregate number of shares of common stock available for awards		3,709,788
Strike price (in dollars per share) | $ / shares		$ 34.19
Fair value of warrant (in dollars per share) | $ / shares		$ 5.63
Peter C. Georgiopoulos, Chairman of Board | Baltic Trading Limited
Number of Shares
Granted (in shares)	700,000
Peter C. Georgiopoulos, Chairman of Board | Predecessor | Baltic Trading Limited
Number of Shares
Granted (in shares)				539,000	166,666
Peter C. Georgiopoulos, Chairman of Board | 2005 and 2012 GS&T Plans | Predecessor
Amortization
Number of anniversaries in which award vests, which are not granted as part of grants to all directors								10 years
Number of Shares
Granted (in shares)					100,000

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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Percentage of vesting of share-based compensation awards.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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