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Income Taxes (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Tonnage Tax | $ 1,360 sblk_TonnageTax | $ 797 sblk_TonnageTax | $ 169 sblk_TonnageTax
Greece |  |  |
Tonnage Tax | $ 1,260 sblk_TonnageTax / us-gaap_IncomeTaxAuthorityAxis = sblk_GreeceMember | $ 668 sblk_TonnageTax / us-gaap_IncomeTaxAuthorityAxis = sblk_GreeceMember |

X
- Definition The tonnage taxes for the period. + References No definition available. + Details
Name: | sblk_TonnageTax
Namespace Prefix: | sblk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=sblk_GreeceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |