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Vessels and other fixed assets, net: (Details Narrative) $ in Thousands	Jun. 30, 2020 USD ($)
Financing Receivable, Nonaccrual [Line Items]
Number of vessels owned	116
First-priority mortgage [Member]
Financing Receivable, Nonaccrual [Line Items]
Number of vessels owned	82
Amount of vessels pledged as collateral	$ 2,231,837
Collateral, Bareboat vessels [Member]
Financing Receivable, Nonaccrual [Line Items]
Number of vessels owned	34
Capital Leases Balance Sheet Assets By Major Class Net	$ 707,940
Second-priority mortgage [Member]
Financing Receivable, Nonaccrual [Line Items]
Amount of vessels pledged as collateral	$ 699,726

X

- Definition

Number of vessels owned by the Company.

+ References

No definition available.

+ Details

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Namespace Prefix:	sblk_
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Balance Type:	na
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X

- Definition

The total gross amount less the charge for the use of the long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121616839&loc=d3e45280-112737

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X

- Definition

Amount of assets pledged to secure a debt instrument.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

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- 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.

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- Details

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