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Significant Accounting Policies (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Accounting Policies [Abstract] |  |  |
Vessels' depreciation method | straight-line basis |  |
Vessel's useful life | 25 years |  |
Provision for doubtful receivables | $ 0 us-gaap_AllowanceForDoubtfulAccountsReceivable | $ 0 us-gaap_AllowanceForDoubtfulAccountsReceivable |
Vessel salvage value per LWT | 200 |  |
Fleet utilization assumption | 98.00%sblk_FleetUtilizationAssumption |  |
Inflation assumption | 3.00%sblk_InflationAssumption |  |
Vessel impairment loss | 0 us-gaap_AssetImpairmentCharges | 0 us-gaap_AssetImpairmentCharges | 303,219,000 us-gaap_AssetImpairmentCharges
Sensitivity analysis description | In particular, the Company modified the utilization ratio, reducing it from approximately 98% to approximately 92% under a worst case scenario, in order to illustrate the increased idle time of vessels under a weak market environment. |  |
Assets held for sale | 0 us-gaap_AssetsHeldForSaleLongLivedFairValueDisclosure | 0 us-gaap_AssetsHeldForSaleLongLivedFairValueDisclosure |
Annual average BDI price |  | $ 1,206 sblk_AnnualAverageBalticDryIndexPrice | $ 920 sblk_AnnualAverageBalticDryIndexPrice

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- Details
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- Definition For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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