XML 39 R33.htm IDEA: XBRL DOCUMENT v3.23.3

Basis of Presentation and General Information - Major Charterers (Details)	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Basis of Presentation and General Information
Percentage of time charter revenue	100.00%	100.00%
Charterer A
Basis of Presentation and General Information
Percentage of time charter revenue	45.00%	44.00%
Charterer B
Basis of Presentation and General Information
Percentage of time charter revenue	39.00%	40.00%
Charterer C
Basis of Presentation and General Information
Percentage of time charter revenue	16.00%	16.00%

X

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

No definition available.

+ Details

Name:	dlng_ConcentrationRiskPercentage
Namespace Prefix:	dlng_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

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

X

- Details

Name:	srt_MajorCustomersAxis=dlng_MajorChartererAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=dlng_MajorChartererBMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_MajorCustomersAxis=dlng_MajorChartererCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: