Basis of Presentation and General Information - Non-Vessel Owning Subsidiaries (Details)	6 Months Ended
Jun. 30, 2026
Dynagas Operating GP LLC
Basis of Presentation and General Information
Ownership percentage	100.00%
Dynagas Holding Ltd
Basis of Presentation and General Information
Ownership percentage	42.90%
Dynagas Operating GP LLC
Basis of Presentation and General Information
General partner interest in dynagas LNG partners LP	100.00%
Dynagas Operating LP
Basis of Presentation and General Information
Ownership interest in subsidiary	100.00%
Dynagas Holding Ltd \| General Partner
Basis of Presentation and General Information
General partner interest in dynagas LNG partners LP	0.10%

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 28
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-28

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481687/323-10-50-3

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- Definition

Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482987/272-10-50-3

+ Details

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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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- Definition

The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership.

+ References

No definition available.

+ Details

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- Details

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