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Advances for vessels under construction and acquisition of vessels (Details) | Jun. 30, 2016
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Five newbuilding vessels |
Vessels [Line Items] |
Number of newbuilding contracts | 5

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- Definition The number of newbuildings contracts acquired. + References No definition available. + Details
Name: | sblk_NumberOfNewbuildingContracts
Namespace Prefix: | sblk_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=sblk_FiveNewbuildingVesselsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |