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v2.4.1.9

Vessels and Other Fixed Assets, Net (Details) (USD $) | 12 Months Ended | 7 Months Ended | 9 Months Ended | 6 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Jul. 22, 2014 | Sep. 19, 2014 | Jul. 11, 2014 | Mar. 09, 2012 | Feb. 22, 2012 | Apr. 10, 2013 | Mar. 14, 2013 | Nov. 05, 2013 | Jan. 24, 2014
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Vessel impairment loss | $ 0 us-gaap_AssetImpairmentCharges | $ 0 us-gaap_AssetImpairmentCharges | $ 303,219,000 us-gaap_AssetImpairmentCharges |  |  |  |  |  |  |  |  |
Loss on sale of vessel | 0 us-gaap_GainLossOnSaleOfPropertyPlantEquipment | (87,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment | (3,190,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment |  |  |  |  |  |  |  |  |
Payments to acquire property plant and equipment | 518,447,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | 127,814,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | 91,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment |  |  |  |  |  |  |  |  |
Advances from sale of vessel | 1,100,000 sblk_AdvancePaymentForVesselDisposal | 0 sblk_AdvancePaymentForVesselDisposal |  |  |  |  |  |  |  |  |  |
Star Ypsilon |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Contracted sale / purchase price |  |  |  |  |  |  |  | 9,126,000 us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarYpsilonMember |  |  |  |
Delivery date |  |  | Mar. 09, 2012 |  |  |  |  |  |  |  |  |
Metric tons of fuel oil |  |  |  |  |  |  |  | 667 sblk_FuelQuantity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarYpsilonMember |  |  |  |
Address commission |  |  | 3.00%sblk_AddressCommissionPercentage / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarYpsilonMember |  |  |  |  |  |  |  |  |
Brokerage commission |  |  | 2.00%sblk_BrokerageCommissionPercentage / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarYpsilonMember |  |  |  |  |  |  |  |  |
Carrying amount of vessel |  |  |  |  |  |  | 11,152,000 sblk_VesselNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarYpsilonMember |  |  |  |  |
Loss on sale of vessel |  |  | (3,190,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarYpsilonMember |  |  |  |  |  |  |  |  |
Star Sigma |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Contracted sale / purchase price |  |  |  |  |  |  |  |  |  | 9,044,000 us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarSigmaMember |  |
Delivery date |  | Apr. 10, 2013 |  |  |  |  |  |  |  |  |  |
Address commission |  | 3.00%sblk_AddressCommissionPercentage / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarSigmaMember |  |  |  |  |  |  |  |  |  |
Brokerage commission |  | 1.00%sblk_BrokerageCommissionPercentage / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarSigmaMember |  |  |  |  |  |  |  |  |  |
Carrying amount of vessel |  |  |  |  |  |  |  |  | 8,354,000 sblk_VesselNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarSigmaMember |  |  |
Vessel impairment loss |  |  | 3,205,000 us-gaap_AssetImpairmentCharges / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarSigmaMember |  |  |  |  |  |  |  |  |
Loss on sale of vessel |  | (87,000)us-gaap_GainLossOnSaleOfPropertyPlantEquipment / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarSigmaMember |  |  |  |  |  |  |  |  |  |
Star Challenger |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Contracted sale / purchase price |  |  |  |  |  |  |  |  |  |  | 28,760,000 us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarChallenger1Member |
Delivery date |  | Dec. 12, 2013 |  |  |  |  |  |  |  |  |  |
Brokerage commission |  | 1.00%sblk_BrokerageCommissionPercentage / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarChallenger1Member |  |  |  |  |  |  |  |  |  |
DWT |  | 61,462 sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarChallenger1Member |  |  |  |  |  |  |  |  |  |
Star Fighter |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Contracted sale / purchase price |  |  |  |  |  |  |  |  |  |  | 28,760,000 us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarFighter1Member |
Delivery date |  | Dec. 30, 2013 |  |  |  |  |  |  |  |  |  |
Brokerage commission |  | 1.00%sblk_BrokerageCommissionPercentage / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarFighter1Member |  |  |  |  |  |  |  |  |  |
DWT |  | 61,455 sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarFighter1Member |  |  |  |  |  |  |  |  |  |
Star Vega |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Delivery date | Feb. 13, 2014 |  |  |  |  |  |  |  |  |  |  |
DWT | 98,681 sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarVega2Member |  |  |  |  |  |  |  |  |  |  |
Star Sirius |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Delivery date | Mar. 07, 2014 |  |  |  |  |  |  |  |  |  |  |
DWT | 98,681 sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarSirius2Member |  |  |  |  |  |  |  |  |  |  |
Star Sirius and Star Vega |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Contracted sale / purchase price |  |  |  |  |  |  |  |  |  |  |  | 60,000,000 us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarSiriusStarVega2Member
Gross Daily Charter Rate | 15,000 sblk_GrossDailyCharterRate / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarSiriusStarVega2Member |  |  |  |  |  |  |  |  |  |  |
Brokerage commission | 1.25%sblk_BrokerageCommissionPercentage / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarSiriusStarVega2Member |  |  |  |  |  |  |  |  |  |  |
Peloreus |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  | Jul. 22, 2014 |  |  |  |  |  |  |  |
DWT |  |  |  | 182,000 sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_Peloreus2Member |  |  |  |  |  |  |  |
Payments to acquire property plant and equipment |  |  |  | 34,625,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_Peloreus2Member |  |  |  |  |  |  |  |
Peloreus - Financed by Deutsche Bank AG loan facility |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire property plant and equipment |  |  |  | 32,500,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_PeloreusFinancedByLoanFacilityMember |  |  |  |  |  |  |  |
Peloreus - Financed by existing cash |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire property plant and equipment |  |  |  | 2,125,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_PeloreusFinancedByExistingCashMember |  |  |  |  |  |  |  |
Leviathan |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  | Sep. 19, 2014 |  |  |  |  |  |  |
DWT |  |  |  |  | 182,000 sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_Leviathan2Member |  |  |  |  |  |  |
Payments to acquire property plant and equipment |  |  |  |  | 34,625,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_Leviathan2Member |  |  |  |  |  |  |
Leviathan - Financed by Deutche Bank AG loan facility |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire property plant and equipment |  |  |  |  | 32,500,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_LeviathanFinancedByLoanFacilityMember |  |  |  |  |  |  |
Leviathan - Financed by existing cash |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire property plant and equipment |  |  |  |  | 2,125,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_LeviathanFinancedByExistingCashMember |  |  |  |  |  |  |
Leviathan and Peloreus |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Assets fair value adjustment |  |  |  | 20,600,000 us-gaap_AssetsFairValueAdjustment / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_LeviathanAndPeloreusMember |  |  |  |  |  |  |  |
Excel vessels |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Contracted sale / purchase price | 501,535,000 us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_ExcelVesselsIIMember |  |  |  |  |  |  |  |  |  |  |
Vessels Delivered | 28 sblk_VesselsDelivered / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_ExcelVesselsIIMember |  |  |  |  |  |  |  |  |  |  |
Shares to acquire vessels | 25,659,425 us-gaap_StockIssuedDuringPeriodSharesAcquisitions / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_ExcelVesselsIIMember |  |  |  |  |  |  |  |  |  |  |
Payments to acquire property plant and equipment | 248,751,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_ExcelVesselsIIMember |  |  |  |  |  |  |  |  |  |  |
Held in escrow for Heron vessels |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Shares to acquire vessels |  |  |  |  |  | 2,115,706 us-gaap_StockIssuedDuringPeriodSharesAcquisitions / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HeldInEscrowForHeronVesselsMember |  |  |  |  |  |
Heron vessels |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Value of common shares issued for acquisition of Heron Vessels |  |  |  |  |  | 25,080,000 us-gaap_StockIssuedDuringPeriodValueAcquisitions / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HeronVesselsIIMember |  |  |  |  |  |
Payments to acquire property plant and equipment |  |  |  |  |  | 25,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HeronVesselsIIMember |  |  |  |  |  |
Star Kim |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Delivery date | Jan. 01, 2015 |  |  |  |  |  |  |  |  |  |  |
DWT | 38,858 sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarKimMember |  |  |  |  |  |  |  |  |  |  |
Advances from sale of vessel | 1,100,000 sblk_AdvancePaymentForVesselDisposal / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_StarKimMember |  |  |  |  |  |  |  |  |  |  |
Merger and Pappas Transaction |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Vessels Acquired |  |  |  |  |  | 13 sblk_VesselsAcquired / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_MergerPappasTransaction2Member |  |  |  |  |  |
Fair value of vessels acquired |  |  |  |  |  | 426,000,000 us-gaap_FairValueOfAssetsAcquired / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_MergerPappasTransaction2Member |  |  |  |  |  |

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