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Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified | Mar. 31, 2015 | Dec. 31, 2014
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Noncurrent assets: |  |
Due from charterers, reserve | $ 1,371 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent | $ 1,588 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Vessels, accumulated depreciation | 52,271 gnk_AccumulatedDepreciationVessels | 36,258 gnk_AccumulatedDepreciationVessels
Deferred drydock, accumulated amortization | 722 gnk_AccumulatedDepreciationOfDeferredDrydockCosts | 330 gnk_AccumulatedDepreciationOfDeferredDrydockCosts
Deferred financing costs, accumulated amortization | 1,216 us-gaap_AccumulatedAmortizationOfNoncurrentDeferredFinanceCosts | 729 us-gaap_AccumulatedAmortizationOfNoncurrentDeferredFinanceCosts
Fixed assets, accumulated depreciation and amortization | $ 170 us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment | $ 119 us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Genco Shipping & Trading Limited shareholders' equity: |  |
Common stock, par value (in dollars per share) | $ 0.01 us-gaap_CommonStockParOrStatedValuePerShare | $ 0.01 us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized (in shares) | 250,000,000 us-gaap_CommonStockSharesAuthorized | 250,000,000 us-gaap_CommonStockSharesAuthorized
Common stock, shares issued (in shares) | 61,541,389 us-gaap_CommonStockSharesIssued | 61,541,389 us-gaap_CommonStockSharesIssued
Common stock, shares outstanding (in shares) | 61,541,389 us-gaap_CommonStockSharesOutstanding | 61,541,389 us-gaap_CommonStockSharesOutstanding

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