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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	$ 1,360sblk_TonnageTax	$ 797sblk_TonnageTax	$ 169sblk_TonnageTax
Greece
Tonnage Tax	$ 1,260sblk_TonnageTax / us-gaap_IncomeTaxAuthorityAxis = sblk_GreeceMember	$ 668sblk_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

X

- Details

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