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Transactions with Related Parties - Additional Information - Management and Directors Fees (Details) | 0 Months Ended | 12 Months Ended | 1 Months Ended | 4 Months Ended | 0 Months Ended |  |  |  |  |  |  | 12 Months Ended
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May 03, 2016 | May 03, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Feb. 07, 2011 CEO | May 03, 2013 CEO | May 03, 2016 Former CEO | Mar. 03, 2015 Former CEO | Jul. 31, 2014 Former CEO USD ($) | Jul. 31, 2014 Former CEO EUR (€) | May 27, 2014 First Installment CEO | May 03, 2014 First Installment CEO | Feb. 07, 2012 First Installment CEO | May 03, 2015 Second Installment CEO | Feb. 07, 2013 Second Installment CEO | May 03, 2016 Third Installment CEO | Feb. 07, 2014 Third Installment CEO | Dec. 31, 2014 Consultancy agreements USD ($)
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exchange rate EUR/USD |  |  | 1.22 us-gaap_ForeignCurrencyExchangeRateTranslation1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Severance payment, cash |  |  |  |  |  |  |  |  |  | $ 810,100 us-gaap_PaymentsForPostemploymentBenefits / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = sblk_FormerCeoMember | € 664,000 us-gaap_PaymentsForPostemploymentBenefits / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = sblk_FormerCeoMember |  |  |  |  |  |  |  |
Severance payments,common shares |  |  | 168,842 sblk_PaymentsForPostemploymentBenefitsShares |  |  |  |  |  |  | 168,842 sblk_PaymentsForPostemploymentBenefitsShares / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = sblk_FormerCeoMember | 168,842 sblk_PaymentsForPostemploymentBenefitsShares / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = sblk_FormerCeoMember |  |  |  |  |  |  |  |
Shares cancelled | 9,334 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod | 9,333 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod | (18,667)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod |  |  |  |  | 9,334 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = sblk_FormerCeoMember | 9,333 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = sblk_FormerCeoMember |  |  |  |  |  |  |  |  |  |
Number of shares granted |  |  | 586,009 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod | 279,333 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod | 90,667 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod | 28,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefExecutiveOfficerMember | 28,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefExecutiveOfficerMember |  |  |  |  |  |  |  |  |  |  |  |
Number of shares vested during the period |  |  |  |  |  |  |  |  |  |  |  |  | 9,333 sblk_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsVestedInPeriod / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefExecutiveOfficerMember / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = sblk_FirstInstallmentMember | 9,333 sblk_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsVestedInPeriod / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefExecutiveOfficerMember / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = sblk_FirstInstallmentMember | 9,333 sblk_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsVestedInPeriod / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefExecutiveOfficerMember / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = sblk_SecondInstallmentMember | 9,333 sblk_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsVestedInPeriod / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefExecutiveOfficerMember / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = sblk_SecondInstallmentMember | 9,334 sblk_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsVestedInPeriod / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefExecutiveOfficerMember / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = sblk_ThirdInstallmentMember | 9,334 sblk_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsVestedInPeriod / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefExecutiveOfficerMember / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = sblk_ThirdInstallmentMember |
Number of shares issued in period |  |  |  |  |  |  |  |  |  |  |  | 9,333 us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefExecutiveOfficerMember / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = sblk_FirstInstallmentMember |  |  |  |  |  |  |
Service management costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 492,000 us-gaap_ServiceManagementCosts / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = sblk_ConsultancyAgreementsMember

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- Definition Shares used for payments of postemployment benefits (such as severance pay and health insurance benefits) recognised during the period. Postemployment benefits are benefits paid to employees after employment but before retirement. + References No definition available. + Details
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- Definition The number of equity-based payment instruments that has vested during the reporting period. + 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 Cash outflows for payments of postemployment benefits (such as severance pay and health insurance benefits) recognized during the period. Postemployment benefits are benefits paid to employees after employment but before retirement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
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- Definition The aggregate costs related to delivering management services 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(d)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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