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Voyage and Vessel Operating Expenses - Vessel Operating Expenses (Table) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Vessel operating expenses |  |  |
Crew wages and related costs | $ 29,449 us-gaap_SalariesAndWages | $ 14,355 us-gaap_SalariesAndWages | $ 14,498 us-gaap_SalariesAndWages
Insurances | 4,561 us-gaap_GeneralInsuranceExpense | 2,968 us-gaap_GeneralInsuranceExpense | 2,655 us-gaap_GeneralInsuranceExpense
Maintenance, repairs, spares and stores | 9,415 us-gaap_DirectOperatingMaintenanceSuppliesCosts | 5,772 us-gaap_DirectOperatingMaintenanceSuppliesCosts | 6,779 us-gaap_DirectOperatingMaintenanceSuppliesCosts
Lubricants | 3,901 sblk_LubricantsExpense | 2,339 sblk_LubricantsExpense | 3,046 sblk_LubricantsExpense
Tonnage taxes | 1,360 sblk_TonnageTax | 797 sblk_TonnageTax | 169 sblk_TonnageTax
Upgrading expenses | 3,167 sblk_UpgradingExpense | 205 sblk_UpgradingExpense | 19 sblk_UpgradingExpense
Miscellaneous | 1,243 us-gaap_OtherCostAndExpenseOperating | 651 us-gaap_OtherCostAndExpenseOperating | 666 us-gaap_OtherCostAndExpenseOperating
Total vessel operating expenses | $ 53,096 us-gaap_OperatingCostsAndExpenses | $ 27,087 us-gaap_OperatingCostsAndExpenses | $ 27,832 us-gaap_OperatingCostsAndExpenses

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- Definition The tonnage taxes for the period. + References No definition available. + Details
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- Definition Costs of maintenance supplies used that are directly related to goods produced and sold, or services rendered, 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 210.5-03.2(a),(d)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition The expense in the period incurred with respect to protection provided by insurance entities against risks other than risks associated with production (which are allocated to cost of sales). + 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 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Details
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- Definition The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation. + 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 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 3 -Article 5 + Details
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- Definition Expenditures for salaries other than officers. Does not include allocated share-based compensation, pension and post-retirement benefit expense or other labor-related non-salary expense. For commercial and industrial companies, excludes any direct and overhead labor that is included in cost of goods sold. + 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 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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