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Transactions with Related Parties - Additional Information - Other (Details) | 12 Months Ended | 6 Months Ended | 12 Months Ended | 0 Months Ended | 1 Months Ended | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |
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Dec. 31, 2013 USD ($) | Dec. 31, 2012 USD ($) | Dec. 31, 2011 USD ($) | Dec. 31, 2011 Combine Marine Inc. USD ($) | Dec. 31, 2011 Combine Marine Inc. EUR (€) | Dec. 31, 2013 Combine Marine Ltd. USD ($) | Dec. 31, 2013 Combine Marine Ltd. EUR (€) | Nov. 25, 2013 Oceanbulk Maritime S.A. USD ($) | Dec. 31, 2013 Oceanbulk Maritime S.A. USD ($) | Dec. 31, 2013 Maiden Voyage LLC USD ($) | Dec. 31, 2012 Maiden Voyage LLC USD ($) | Dec. 31, 2011 Maiden Voyage LLC USD ($) | Sep. 27, 2012 Maiden Voyage LLC USD ($) | Dec. 31, 2013 OOCAPE1 Holdings LLC USD ($) | Dec. 31, 2012 OOCAPE1 Holdings LLC USD ($) | Dec. 31, 2011 OOCAPE1 Holdings LLC USD ($) | Oct. 19, 2012 OOCAPE1 Holdings LLC USD ($) | Dec. 31, 2013 Sea Cape Shipping LLC USD ($) | Dec. 31, 2012 Sea Cape Shipping LLC USD ($) | Dec. 31, 2011 Sea Cape Shipping LLC USD ($) | Aug. 30, 2013 Sea Cape Shipping LLC USD ($) | Dec. 31, 2013 Sky Cape Shipping LLC USD ($) | Dec. 31, 2012 Sky Cape Shipping LLC USD ($) | Dec. 31, 2011 Sky Cape Shipping LLC USD ($) | Oct. 18, 2013 Sky Cape Shipping LLC USD ($) | Dec. 31, 2013 Glory Supra Shipping LLC USD ($) | Dec. 31, 2012 Glory Supra Shipping LLC USD ($) | Dec. 31, 2011 Glory Supra Shipping LLC USD ($) | Sep. 24, 2013 Glory Supra Shipping LLC USD ($) | Dec. 31, 2013 Pacific Cape Shipping LLC USD ($) | Dec. 31, 2012 Pacific Cape Shipping LLC USD ($) | Dec. 31, 2011 Pacific Cape Shipping LLC USD ($) | Oct. 24, 2013 Pacific Cape Shipping LLC USD ($) | Dec. 31, 2013 Global Cape Shipping LLC USD ($) | Jan. 30, 2014 Global Cape Shipping LLC USD ($) | Dec. 31, 2013 Product Shipping & Trading S.A USD ($) | Dec. 31, 2012 Product Shipping & Trading S.A USD ($) | Dec. 31, 2011 Product Shipping & Trading S.A USD ($) | Jun. 07, 2013 Product Shipping & Trading S.A USD ($)
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Management fee income | $ 1,598,000 | $ 478,000 | $ 153,000 |  |  |  |  |  |  | $ (163,000) | $ (128,000) | $ 0 |  | $ (274,000) | $ (76,000) | $ 0 |  | $ (93,000) | $ 0 | $ 0 |  | $ (56,000) | $ 0 | $ 0 |  | $ (74,000) | $ 0 | $ 0 |  | $ (52,000) | $ 0 | $ 0 |  | $ 0 |  | $ (242,000) | $ 0 | $ 0 |
Rent expense per month |  |  |  | 6,900 | 5,000 | 3,500 | 2,500 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exchange rate EUR/USD | 1.38 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Daily fixed management fee | 750 |  |  |  |  |  |  |  |  |  |  |  | 750 |  |  |  | 750 |  |  |  | 750 |  |  |  | 750 |  |  |  | 750 |  |  |  | 750 |  | 750 |  |  |  | 130
Vessel acquisition commission percentage |  |  |  |  |  |  |  | 0.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pre-delivery installments | 127,814,000 | 91,000 | 96,388,000 |  |  |  |  |  | 519,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Parties Commissions Fees | 773,000 | 1,134,000 | 1,237,000 |  |  |  |  | 2,077,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Flat fee per vessel |  |  |  |  |  |  |  | $ 200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Flat fee charged per each newbuilding vessel, as commission fee relative to the negotiations with the shipyards on the construction of the Company's contracted newbuilding vessels. + References No definition available. + Details
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- Definition Primarily represents commissions incurred in the period based upon the sale by related parties of the entity's goods or services, and fees for sales assistance or product enhancements performed by related parties (such as a distributor or value added reseller). + References No definition available. + Details
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- Definition Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6897108&loc=SL6897125-166521 + Details
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- Definition Base revenue, as contractually stipulated, for operating and managing another entity's business during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(d)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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