Represents the accrual related to estimated customer claims.

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- Definition

Represents the amount of gross transportation tax.

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No definition available.

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- Definition

Represents the net gains (losses) resulting from the difference between the cost of bunker fuel delivered by the terminating charterer and the bunker fuel sold to the new charterer and the lower of cost or market adjustment to re-value bunker fuel on a quarterly basis.

+ References

No definition available.

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- Definition

Represents the number of separate categories of general administrative and management fees, in which the entity broke out during the period.

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No definition available.

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- Definition

Number of vessels for which the Company has determined will more likely than not be scrapped.

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No definition available.

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- Definition

Represents the percentage of gross shipping income attributable to transportation beginning or ending in the U.S. will be subject to a 4% tax without allowance for deductions.

+ References

No definition available.

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Data Type:	num:percentItemType
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- Definition

Represents the percentage of tax without allowance for deductions on gross shipping income attributable to transportation.

+ References

No definition available.

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- References

No definition available.

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- Definition

Represents the estimated scrap value of vessels.

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No definition available.

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Data Type:	us-types:perUnitItemType
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Represents the estimated useful life of vessels.

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No definition available.

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No definition available.

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
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Balance Type:	debit
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- References

No definition available.

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No definition available.

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- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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-Section 45
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- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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- References

No definition available.

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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No definition available.

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No definition available.

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The total amount of other operating income, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operation.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Thousands	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2017 USD ($)	Dec. 31, 2016 USD ($) item	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) segment $ / item	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)	Jun. 08, 2016 item
Segment reporting
Number of reportable segments \| segment				1
Vessels, net
Estimated useful life				25 years
Depreciation and amortization	$ 17,836		$ 18,127	$ 54,194	$ 58,152
Estimated scrap value (in dollars per lightweight ton) \| $ / item				310
Deferred revenue
Accrual related to estimated customer claims	483	$ 220		$ 483		$ 220
Number of categories of General administrative and management fees \| item		2
Voyage expense recognition
Net gain (loss) on purchase and sale of bunker fuel and LCM adjustments	269		(390)	$ 1,205	(4,195)
Percentage of gross shipping income attributable to transportation beginning or ending in the U.S. will be subject to a 4% tax without allowance for deductions				50.00%
Percentage of tax without allowance for deductions on gross shipping income attributable to transportation beginning or ending in the U.S				4.00%
Gross transportation tax	149			$ 246		$ 0
Impairment of vessel assets
Impairment of vessel assets	18,654		0	21,993	69,278
Gain on disposal of vessels
Gain (Loss) on sale of vessels	0			7,712	(77)
Other operating income
Other operating income	0		0	0	182
Vessels
Vessels, net
Depreciation and amortization	16,575		17,077	50,173	54,752
Samsun
Other operating income
Other operating income					157
Genco Surprise
Impairment of vessel assets
Impairment of vessel assets	0			3,339
Genco Marine
Impairment of vessel assets
Impairment of vessel assets			0		1,684
Gain on disposal of vessels
Gain (Loss) on sale of vessels			0		(77)
Genco Acheron, Genco Carrier, Genco Leader, Genco Pioneer, Genco Prosperity, Genco Reliance, Genco Success, Genco Sugar, Genco Wisdom
Impairment of vessel assets
Impairment of vessel assets			$ 0		$ 67,594
Number of vessels scrapped \| item							9
Genco Wisdom, Genco Reliance, Genco Carrier, Genco Success And Genco Prosperity
Gain on disposal of vessels
Gain (Loss) on sale of vessels				7,712
Genco Beauty, Genco Explorer, Genco Knight, Genco Progress and Genco Vigour
Impairment of vessel assets
Impairment of vessel assets	$ 18,654			$ 18,654