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Basis of Presentation and General Information - Newbuildings (Table) (Details)	12 Months Ended
	Dec. 31, 2014
HN 5016 (tbn Indomitable)
Vessel
DWT	182,160sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN5016Member
Expected Delivery Date	January 2015
HN NE 164 (tbn Honey Badger)
Vessel
DWT	61,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HNNE164Member
Expected Delivery Date	February 2015
HN NE 165 (tbn Wolverine)
Vessel
DWT	61,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HNNE165Member
Expected Delivery Date	February 2015
HN 1061 (tbn Roberta)
Vessel
DWT	64,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN1061Member
Expected Delivery Date	March 2015
HN 1063 (tbn Idee Fixe)
Vessel
DWT	64,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN1063Member
Expected Delivery Date	March 2015
HN NE 166 (tbn Gargantua)
Vessel
DWT	209,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HNNE166Member
Expected Delivery Date	April 2015
HN 1062 (tbn Laura)
Vessel
DWT	64,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN1062Member
Expected Delivery Date	March 2015
HN 5017 (tbn Deep Blue)
Vessel
DWT	182,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN5017Member
Expected Delivery Date	April 2015
HN 1312 (tbn Bruno Marks)
Vessel
DWT	180,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN1312Member
Expected Delivery Date	May 2015
HN 1064 (tbn Kaley)
Vessel
DWT	64,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN1064Member
Expected Delivery Date	May 2015
HN 5040 (tbn Star Aquarius)
Vessel
DWT	60,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_Hull5040Member
Expected Delivery Date	May 2015
HN NE 167 (tbn Goliath)
Vessel
DWT	209,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HNNE167Member
Expected Delivery Date	June 2015
HN NE 184 (tbn Maharaj)
Vessel
DWT	209,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HNNE184Member
Expected Delivery Date	July 2015
HN 1313 (tbn Jenmark)
Vessel
DWT	180,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN1313Member
Expected Delivery Date	July 2015
HN 1080 (tbn Kennadi)
Vessel
DWT	64,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN1080Member
Expected Delivery Date	July 2015
HN 5043 (tbn Star Pisces)
Vessel
DWT	60,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_Hull5043Member
Expected Delivery Date	July 2015
HN 1372 (tbn Star Libra)
Vessel
DWT	208,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HullNo1372Member
Expected Delivery Date	August 2015
HN 1081 (tbn Mackenzie)
Vessel
DWT	64,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN1081Member
Expected Delivery Date	August 2015
HN 5055 (tbn Behemoth)
Vessel
DWT	182,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN5055Member
Expected Delivery Date	September 2015
HN 1338 (tbn Star Aries)
Vessel
DWT	180,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_Hull1338Member
Expected Delivery Date	September 2015
HN NE 196 (tbn Star Antares)
Vessel
DWT	61,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HullNE196Member
Expected Delivery Date	September 2015
HN 1082 (tbn Night Owl)
Vessel
DWT	64,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN1082Member
Expected Delivery Date	October 2015
HN 1359 (tbn Star Marisa)
Vessel
DWT	208,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN1359Member
Expected Delivery Date	November 2015
HN 5056 (tbn Megalodon)
Vessel
DWT	182,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN5056Member
Expected Delivery Date	November 2015
HN 1083 (tbn Early Bird)
Vessel
DWT	64,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN1083Member
Expected Delivery Date	November 2015
HN NE 197 (Star Lutas)
Vessel
DWT	61,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HullNE197Member
Expected Delivery Date	November 2015
HN 1342 (tbn Star Gemini)
Vessel
DWT	208,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_Hull1342Member
Expected Delivery Date	January 2016
HN 1339 (tbn Star Taurus)
Vessel
DWT	180,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_Hull1339Member
Expected Delivery Date	January 2016
HN 1360 (tbn Star Ariadne)
Vessel
DWT	208,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN1360Member
Expected Delivery Date	February 2016
HN 1371 (tbn Star Virgo)
Vessel
DWT	208,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HullNo1371Member
Expected Delivery Date	February 2016
HN NE 198 (tbn Star Poseidon)
Vessel
DWT	209,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HullNE198Member
Expected Delivery Date	March 2016
HN 1343 (tbn Star Leo)
Vessel
DWT	208,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_Hull1343Member
Expected Delivery Date	March 2016
HN 1361 (tbn Star Magnanimus)
Vessel
DWT	208,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN1361Member
Expected Delivery Date	May 2016
HN 1362 (tbn Star Manticore)
Vessel
DWT	208,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN1362Member
Expected Delivery Date	June 2016
HN 1363 (tbn Star Chaucer)
Vessel
DWT	208,000sblk_VesselCapacity / us-gaap_PropertyPlantAndEquipmentByTypeAxis = sblk_HN1363Member
Expected Delivery Date	September 2016

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