Name:	sblk_AssetAcquisitionConsiderationTransferred2
Namespace Prefix:	sblk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The average repurchase price per stock.

No definition available.

Name:	sblk_AverageRepurchaseStockValue
Namespace Prefix:	sblk_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

Represents the value of shares that were authorized for repurchase under a share repurchase program but remained unrepurchased at the time the program was formally cancelled. This element captures the unexecuted portion of the repurchase authorization that is no longer valid due to the program's termination.

No definition available.

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

The cost for repurchased common stock and treasury shares.

No definition available.

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

The delivery date of the vessel to its buyers.

No definition available.

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

The expected date of the vessel delivery to the Company.

No definition available.

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

Amount of Gain (Loss) on early termination of Interest Rate Swap recognized in the income statement within "Gain/(Loss) in debt extinguishment, net"

No definition available.

Name:	sblk_GainsLossesOnEarlyTerminationOfInterestRateSwap
Namespace Prefix:	sblk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Date the declared dividend will be paid, in YYYY-MM-DD format.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 230
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Name:	us-gaap_DividendPayableDateToBePaidDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

The per share amount of a dividend declared, but not paid, as of the financial reporting date.

Name:	us-gaap_DividendsPayableAmountPerShare
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

Date the holder must own the stock to be entitled to the dividend, in YYYY-MM-DD format.

No definition available.

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

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

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

Number of shares that have been repurchased during the period and are being held in treasury.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-URI https://asc.fasb.org/1943274/2147481112/505-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-Topic 505
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-Name Accounting Standards Codification
-Section S99
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Name:	us-gaap_TreasuryStockSharesAcquired
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_ShareRepurchaseProgramAxis=sblk_ShareRepurchaseProgramMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_ShareRepurchaseProgramAxis=sblk_NewShareRepurchaseProgramMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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

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

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

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