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Transactions With Related Parties - Additional Information - Interchart (Details) In Thousands, except Share data, unless otherwise specified | 0 Months Ended | 4 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Feb. 25, 2014 USD ($) | Feb. 25, 2014 EUR (€) | Mar. 31, 2015 USD ($) | Jul. 11, 2014 | Dec. 31, 2014
Transactions with Related Parties [Abstract] |  |  |  |  |
Payment to acquire business | $ 200 us-gaap_PaymentsToAcquireBusinessesGross |  |  |  |
Shares to acquire business | 22,598 us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued | 22,598 us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued |  | 54,104,200 us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued |
Percentage of ownership in Interchart acquired | 33.00%us-gaap_EquityMethodInvestmentOwnershipPercentage | 33.00%us-gaap_EquityMethodInvestmentOwnershipPercentage |  |  |
Annual lump sum fee | 610 sblk_ServicesAgreementAnnualLumpFeeRemuneration | 500 sblk_ServicesAgreementAnnualLumpFeeRemuneration |  |  |
Exchange rate EUR/USD |  |  |  |  | 1.22 us-gaap_ForeignCurrencyExchangeRateTranslation1
Monthly lump sum fee |  |  | $ 275 sblk_ServicesAgreementMonthlyLumpFeeRemuneration |  |
Fair value per share transferred | $ 14.51 us-gaap_BusinessAcquisitionSharePrice |  |  |  |

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- Definition Annual lump fee payable to Interchart, as part of the Services Agreement for brokering and commercial services. + References No definition available. + Details
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- Definition Monthly lump fee payable to Interchart, as part of the Services Agreement for brokering and commercial services. + References No definition available. + Details
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- Definition Number of shares of equity interests issued or issuable to acquire entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + 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 The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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