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Partners' Capital (Deficit) - Distributions of Available Cash (Details)	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Distribution period (in days)	45 days

X

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