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Partners' Capital (Deficit) - Distributions of Available Cash (Details)	9 Months Ended
	Sep. 30, 2025
Partners' Capital Notes [Abstract]
Distribution period (days)	45 days

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- Definition

Limited Partners' Capital Account, Distribution Period

+ References

No definition available.

+ Details

Name:	mmlp_LimitedPartnersCapitalAccountDistributionPeriod
Namespace Prefix:	mmlp_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

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