The fee rate charged daily, persuant to the management agreement.

No definition available.

Name:	sblk_DailyManagementFee
Namespace Prefix:	sblk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The date of the vessel delivery to the Company.

+ References

No definition available.

+ Details

Name:	sblk_DeliveryDateVessel
Namespace Prefix:	sblk_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Flat fee charged per each newbuilding vessel, as commission fee relative to the negotiations with the shipyards on the construction of the Company's contracted newbuilding vessels.

+ References

No definition available.

+ Details

Name:	sblk_FlatFeePerVessel
Namespace Prefix:	sblk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The number of directors constituting the Board of Directors.

+ References

No definition available.

+ Details

Name:	sblk_NumberOfDirectors
Namespace Prefix:	sblk_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of payment installments.

+ References

No definition available.

+ Details

Name:	sblk_NumberOfInstallments
Namespace Prefix:	sblk_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- 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

- Definition

Primarily represents commissions incurred in the period based upon the sale by related parties of the entity's goods or services, and fees for sales assistance or product enhancements performed by related parties (such as a distributor or value added reseller).

+ References

No definition available.

+ Details

Name:	sblk_RelatedPartiesCommissionsFees
Namespace Prefix:	sblk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of monthly rent.

+ References

No definition available.

+ Details

Name:	sblk_RentExpensePerMonth
Namespace Prefix:	sblk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Monthly lump fee per vessel, as part of an agreement for commercial, technical, crewing or brokering services.

+ References

No definition available.

+ Details

Name:	sblk_ServicesAgreementMonthlyLumpFeeRemunerationPerVessel
Namespace Prefix:	sblk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

This element represents supervision costs for newbuilding vessels paid on behalf of a related party.

+ References

No definition available.

+ Details

Name:	sblk_SupervisionCosts
Namespace Prefix:	sblk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Commission paid to an entity related to negotiations made, with a shipyard, regarding a vessel acquisition.

+ References

No definition available.

+ Details

Name:	sblk_VesselAcquisitionCommissionPercentage
Namespace Prefix:	sblk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of vessels acquired.

+ References

No definition available.

+ Details

Name:	sblk_VesselsAcquired
Namespace Prefix:	sblk_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

+ Details

Name:	us-gaap_ConstructionInProgressGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6897108&loc=SL6897125-166521

+ Details

Name:	us-gaap_ForeignCurrencyExchangeRateTranslation1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of the lessee's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash outflow from construction costs to date on capital projects that have not been completed and assets being constructed that are not ready to be placed into service.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585

+ Details

Name:	us-gaap_PaymentsForConstructionInProcess
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Date of maturity or expiration of arrangements with a related party (for example, but not limited to, leasing and debt arrangements between related parties), in CCYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	us-gaap_RelatedPartyTransactionDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- 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_RelatedPartyTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.

+ References

No definition available.

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=64801991&loc=SL6759159-111685

+ Details

Name:	us-gaap_VariableInterestEntityOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=sblk_CombineMarineLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=sblk_OceanbulkMaritimeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=sblk_ManagedVesselsOceanBulkShippingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=sblk_ProductShippingTradingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=sblk_MaryvilleMaritimeIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=sblk_OaktreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=sblk_CapesizeVesselsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=sblk_NewcastlemaxVesselsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=sblk_UltramaxVesselsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=sblk_HeronVesselsIIMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementScenarioAxis=sblk_BenefialOwnershipOf40OrMoreMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=sblk_OaktreeShareholdersAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_BeneficialOwnerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementScenarioAxis=sblk_BeneficialOwnershipOf25OrMoreMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementScenarioAxis=sblk_BeneficialOwnershipOf15OrMoreMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementScenarioAxis=sblk_BeneficialOwnershipOf5OrMoreMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Transactions with Related Parties - Additional Information (Details)	2 Months Ended	4 Months Ended	6 Months Ended			7 Months Ended	8 Months Ended	9 Months Ended	10 Months Ended	12 Months Ended
	May 31, 2014 USD ($)	Apr. 30, 2014 USD ($)	Jul. 11, 2014	Jul. 10, 2014 USD ($)	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)	Sep. 09, 2016 shares	Sep. 30, 2013 USD ($)	Oct. 28, 2015 shares	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2012 EUR (€)	Aug. 19, 2014	Jul. 31, 2014
Related Party Transaction [Line Items]
Exchange rate EUR/USD										1.05							1.34
Commission fee for newbuilding vessels										$ 64,570,000	$ 127,910,000
Daily fixed management fee												$ 750
Number of directors										9
Combine Marine Ltd
Related Party Transaction [Line Items]
Leasing agreements, Office space, Term of contract														1 year	1 year
Rent expense per month														$ 2,600	€ 2,500
Oceanbulk Maritime S.A.
Related Party Transaction [Line Items]
Number of newbuilding contracts										9
Vessel acquisition commission percentage										0.50%
Related Parties Commissions Fees										$ 2,077,000
Pre-delivery installments		$ 519,000											$ 519,000
Number of installments										4
Commission fee for newbuilding vessels										$ 533,000	280,000
Daily fixed management fee	$ 170					$ 110
Vessel acquisition commission, Flat fee										200,000
Supervision costs										$ 415,000	850,000
Issuance of shares, representing the third and the fourth installment \| shares							138,453		34,234
Managed Vessels of Oceanbulk Shipping LLC
Related Party Transaction [Line Items]
Daily fixed management fee				$ 750
Expiration date of agreement										Jul. 11, 2014
Product Shipping & Trading S.A.
Related Party Transaction [Line Items]
Daily fixed management fee					$ 20			$ 130
Expiration date of agreement										Jul. 01, 2014
Maryville Maritime Inc.
Related Party Transaction [Line Items]
Monthly lump sum management fee per vessel											$ 17,500
Oaktree
Related Party Transaction [Line Items]
Voting percentage			33.00%
Equity Method Investment Ownership Percentage			61.30%
Capesize vessels
Related Party Transaction [Line Items]
Number of vessels acquired																6
Capesize vessels \| Oceanbulk Maritime S.A.
Related Party Transaction [Line Items]
Number of newbuilding contracts										2
Newcastlemax vessels \| Oceanbulk Maritime S.A.
Related Party Transaction [Line Items]
Number of newbuilding contracts										3
Ultramax vessels \| Oceanbulk Maritime S.A.
Related Party Transaction [Line Items]
Number of newbuilding contracts										4
Heron vessels
Related Party Transaction [Line Items]
Delivery date										December 5, 2014
Number of vessels acquired										2
Beneficial Ownership Of 40% Or More \| Shareholders Agreement \| Oaktree
Related Party Transaction [Line Items]
Number of directors										4
Beneficial Ownership of 25% but less than 40% \| Shareholders Agreement \| Oaktree
Related Party Transaction [Line Items]
Number of directors										3
Beneficial Ownership of 15% but less than 25% \| Shareholders Agreement \| Oaktree
Related Party Transaction [Line Items]
Number of directors										2
Beneficial Ownership of 5% but less than 15% \| Shareholders Agreement \| Oaktree
Related Party Transaction [Line Items]
Number of directors										1
Maximum \| Beneficial Ownership of 25% but less than 40% \| Shareholders Agreement \| Oaktree
Related Party Transaction [Line Items]
Voting percentage										40.00%
Maximum \| Beneficial Ownership of 15% but less than 25% \| Shareholders Agreement \| Oaktree
Related Party Transaction [Line Items]
Voting percentage										25.00%
Maximum \| Beneficial Ownership of 5% but less than 15% \| Shareholders Agreement \| Oaktree
Related Party Transaction [Line Items]
Voting percentage										15.00%
Minimum \| Beneficial Ownership Of 40% Or More \| Shareholders Agreement \| Oaktree
Related Party Transaction [Line Items]
Voting percentage										40.00%
Minimum \| Beneficial Ownership of 25% but less than 40% \| Shareholders Agreement \| Oaktree
Related Party Transaction [Line Items]
Voting percentage										25.00%
Minimum \| Beneficial Ownership of 15% but less than 25% \| Shareholders Agreement \| Oaktree
Related Party Transaction [Line Items]
Voting percentage										15.00%
Minimum \| Beneficial Ownership of 5% but less than 15% \| Shareholders Agreement \| Oaktree
Related Party Transaction [Line Items]
Voting percentage										5.00%