The fees related to receiving management consultancy services during the reporting period.

No definition available.

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

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM format.

+ References

No definition available.

+ Details

Name:	sblk_DebtInstrumentMaturityDate1
Namespace Prefix:	sblk_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The aggregate consultancy fees related to executive officers of the Company.

+ References

No definition available.

+ Details

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

- Definition

The gross daily charter-in rate.

+ References

No definition available.

+ Details

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

- Definition

The gross daily charter out rate.

+ References

No definition available.

+ Details

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

- Definition

Date which lease or group of leases is set to expire, in YYYY-MM format.

+ References

No definition available.

+ Details

Name:	sblk_LeaseExpirationDate
Namespace Prefix:	sblk_
Data Type:	xbrli:stringItemType
Balance Type:	na
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

The monthly rent expense.

+ 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 payable to Interchart, as part of the Services Agreement for brokering and commercial services.

+ References

No definition available.

+ Details

Name:	sblk_ServicesAgreementMonthlyLumpFeeRemuneration
Namespace Prefix:	sblk_
Data Type:	xbrli:monetaryItemType
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

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

+ Details

Name:	us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4332-108586

+ Details

Name:	us-gaap_DebtConversionConvertedInstrumentAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types: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/disclosureRef
-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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32618-110901

+ Details

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

- Definition

Amount of investment in equity method investee and investment in and advance to affiliate.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980

+ Details

Name:	us-gaap_LesseeOperatingLeaseTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 55
-Paragraph 53
-URI http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (g)(3)
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980

+ Details

Name:	us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- 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 YYYY-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

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=123419778&loc=SL6759159-111685

+ Details

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

- Details

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

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=sblk_SongaVesselsMember
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:	srt_CurrencyAxis=currency_EUR
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

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

- Details

Name:	srt_StatementScenarioAxis=sblk_NonEmployeeDirectorsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=sblk_ChairmanForAuditCommitteeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=sblk_EachMemberForAuditCommitteeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=sblk_AttendanceOfMeetingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

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

- Details

Name:	srt_StatementScenarioAxis=sblk_BeneficialOwnershipOf40OrMoreMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=sblk_BeneficialOwnershipOf25OrMoreButLessThan40Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=sblk_BeneficialOwnershipOf15OrMoreButLessThan25Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=sblk_BeneficialOwnershipOf5OrMoreButLessThan15Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	srt_StatementScenarioAxis=sblk_HeldByLocalEntrepreneursMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

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

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=sblk_PiraeusBankS.A.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_BusinessAcquisitionAxis=sblk_InterchartShippingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Transactions with Related Parties (Details Narrative)	6 Months Ended	12 Months Ended
Transactions with Related Parties (Details Narrative)	Jul. 03, 2020 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 EUR (€)	Dec. 31, 2020 USD ($)	Dec. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 21, 2016 USD ($)	Dec. 31, 2012 EUR (€)	Aug. 03, 2018	Jul. 06, 2018	Dec. 31, 2014
Augustea Technoservices Ltd. and affiliates [Member]
Related Party Transaction [Line Items]
Vessels acquired									16
Songa Vessels [Member]
Related Party Transaction [Line Items]
Vessels acquired										15
Oaktree Capital Management L.P. [Member]
Related Party Transaction [Line Items]
Number of directors		3	3
Voting percentage		33.00%	33.00%
Euro Member Countries, Euro
Related Party Transaction [Line Items]
Foreign Currency Exchange Rate, Translation		1.14
Interchart [Member] \| Services Agreement [Member]
Related Party Transaction [Line Items]
Monthly lump sum fee		$ 345,000		$ 315,000		$ 325,000
Expiration date of agreement		Dec. 31, 2021	Dec. 31, 2021
Management [Member]
Related Party Transaction [Line Items]
Consultancy fees		$ 537,000
Management [Member] \| Non - Employee Directors [Member]
Related Party Transaction [Line Items]
Consultancy fees		15,000
Management [Member] \| Chairman of Audit Committee [Member]
Related Party Transaction [Line Items]
Consultancy fees		15,000
Management [Member] \| Audit Committee Member [Member]
Related Party Transaction [Line Items]
Consultancy fees		7,500
Management [Member] \| Attendance Of Meetings [Member]
Related Party Transaction [Line Items]
Consultancy fees		5,000
Combine Marine Ltd [Member]
Related Party Transaction [Line Items]
Rent expense per month		$ 2,900
Lease expiration date		January 2024	January 2024
Combine Marine Ltd [Member] \| Euro Member Countries, Euro
Related Party Transaction [Line Items]
Rent expense per month \| €								€ 2,500
Alma Properties [Member]
Related Party Transaction [Line Items]
Rent expense per month							$ 300
Lessee, Operating Lease, Term of Contract							6 years
Alma Properties [Member] \| Euro Member Countries, Euro
Related Party Transaction [Line Items]
Rent expense per month \| €			€ 300
Oaktree Shareholder Agreement [Member] \| Oaktree Capital Management L.P. [Member]
Related Party Transaction [Line Items]
Number of directors		9	9
Oaktree Shareholder Agreement [Member] \| Beneficial ownership of 40% ore more [Member] \| Oaktree Capital Management L.P. [Member]
Related Party Transaction [Line Items]
Number of directors		4	4
Oaktree Shareholder Agreement [Member] \| Beneficial Ownershio of 25% or more but less than 40% [Member] \| Oaktree Capital Management L.P. [Member]
Related Party Transaction [Line Items]
Number of directors		3	3
Oaktree Shareholder Agreement [Member] \| Beneficial Ownership of 15% or more but less than 25% [Member] \| Oaktree Capital Management L.P. [Member]
Related Party Transaction [Line Items]
Number of directors		2	2
Oaktree Shareholder Agreement [Member] \| Beneficial ownership of 5% or more but less than 15% [Member] \| Oaktree Capital Management L.P. [Member]
Related Party Transaction [Line Items]
Number of directors		1	1
Starocean [Member]
Related Party Transaction [Line Items]
Ownership percentage		25.00%
Equity method investment		$ 152,000		$ 128,000
Starocean [Member] \| Held By Local Entrepreneurs [Member]
Related Party Transaction [Line Items]
Ownership percentage		75.00%
Eagle Bulk [Member]
Related Party Transaction [Line Items]
Charter-out hire daily rate		$ 39,300
Eagle Bulk [Member] \| First Vessel [Member]
Related Party Transaction [Line Items]
Charter-in hire daily rate						$ 16,300
Operating Lease, Weighted Average Remaining Lease Term						2 months
Eagle Bulk [Member] \| Second Vessel [Member]
Related Party Transaction [Line Items]
Charter-in hire daily rate						$ 15,800
Operating Lease, Weighted Average Remaining Lease Term						2 months
Piraeus Bank S. A. [Member]
Related Party Transaction [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 50,350,000
Maturity date	September 2021
CCL Pool [Member]
Related Party Transaction [Line Items]
Ownership percentage					25.00%
Debt Conversion, Converted Instrument, Amount		$ 125,000			$ 125,000
Interchart [Member]
Related Party Transaction [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired											33.00%