$MMLP
MARTIN MIDSTREAM PARTNERS L.P. Stock $mmlp

$mmlp Overview Financials Valuation SEC Filings Company Website

2021 Q1 Form 10-K Financial Statement

#000117633421000061 Filed on March 03, 2021

Income Statement

Concept	2021 Q1	2020 Q4	2020
Revenue	$201.0M	$180.1M	$672.1M
YoY Change	1.05%	-25.54%	-20.66%
Cost Of Revenue	$114.9M	$107.5M	$356.9M
YoY Change	5.55%	-26.41%	-27.57%
Gross Profit	$86.12M	$72.61M	$315.2M
YoY Change	-4.39%	-24.21%	-11.04%
Gross Profit Margin	42.85%	40.32%	46.9%
Selling, General & Admin	$10.61M	$10.24M	$40.90M
YoY Change	1.41%	-2.77%	-1.29%
% of Gross Profit	12.32%	14.1%	12.98%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$14.43M	$15.60M	$61.46M
YoY Change	-5.28%	3.59%	2.33%
% of Gross Profit	16.76%	21.49%	19.5%
Operating Expenses	$10.61M	$61.06M	$40.90M
YoY Change	1.41%	-21.48%	-1.29%
Operating Profit	$15.69M	$11.93M	$46.50M
YoY Change	0.55%	-33.83%	-19.97%
Interest Expense	-$12.51M	-$13.60M	-$44.40M
YoY Change	31.71%	27.58%	-11.2%
% of Operating Profit	-79.77%	-114.05%	-95.48%
Other Income/Expense, Net	-$12.95M	-$362.0K	-$51.54M
YoY Change	101.2%	-8.12%	-0.28%
Pretax Income	$2.733M	-$2.338M	-$5.035M
YoY Change	-70.17%	-133.54%	-178.43%
Income Tax	$222.0K	$226.0K	$1.736M
% Of Pretax Income	8.12%
Net Earnings	$2.511M	-$2.564M	-$6.771M
YoY Change	-71.51%	-138.6%	-96.13%
Net Earnings / Revenue	1.25%	-1.42%	-1.01%
Basic Earnings Per Share
Diluted Earnings Per Share	$64.87K	-$66.32K	-$175.7K
COMMON SHARES
Basic Shares Outstanding	38.89M shares	38.85M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2021 Q1	2020 Q4	2020
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.112M	$4.958M	$5.000M
YoY Change	1535.29%	73.6%	72.41%
Cash & Equivalents	$1.112M	$4.958M
Short-Term Investments
Other Short-Term Assets	$8.294M	$8.991M	$9.000M
YoY Change	29.67%	54.14%	-17.43%
Inventory	$38.72M	$54.12M	$54.10M
Prepaid Expenses
Receivables	$65.23M	$52.75M	$52.70M
Other Receivables	$22.21M	$14.81M	$14.90M
Total Short-Term Assets	$135.6M	$135.6M	$135.6M
YoY Change	6.36%	-25.22%	-25.25%
LONG-TERM ASSETS
Property, Plant & Equipment	$392.3M	$402.1M	$402.1M
YoY Change	-5.31%	-3.61%	-8.84%
Goodwill	$16.82M	$16.82M
YoY Change	-4.98%	-4.98%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$3.314M	$2.805M	$23.70M
YoY Change	-12.79%	-21.36%	-2.87%
Total Long-Term Assets	$434.6M	$444.0M	$444.0M
YoY Change	-10.34%	-8.6%	-8.6%
TOTAL ASSETS
Total Short-Term Assets	$135.6M	$135.6M	$135.6M
Total Long-Term Assets	$434.6M	$444.0M	$444.0M
Total Assets	$570.2M	$579.6M	$579.6M
YoY Change	-6.86%	-13.12%	-13.13%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$56.27M	$51.90M	$51.90M
YoY Change	6.75%	-19.91%	-19.91%
Accrued Expenses	$16.76M	$27.85M	$27.80M
YoY Change	-4.1%	19.24%	18.8%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$0.00	$28.79M	$31.50M
YoY Change	-100.0%		363.24%
Total Short-Term Liabilities	$78.24M	$119.4M	$119.4M
YoY Change	-82.57%	11.27%	11.28%
LONG-TERM LIABILITIES
Long-Term Debt	$513.3M	$484.6M	$484.9M
YoY Change	210.05%	-14.95%	-15.0%
Other Long-Term Liabilities	$8.541M	$7.067M	$22.20M
YoY Change	-4.11%	-20.69%	-13.28%
Total Long-Term Liabilities	$521.8M	$491.7M	$507.1M
YoY Change	199.12%	-15.04%	-14.93%
TOTAL LIABILITIES
Total Short-Term Liabilities	$78.24M	$119.4M	$119.4M
Total Long-Term Liabilities	$521.8M	$491.7M	$507.1M
Total Liabilities	$614.5M	$626.5M	$626.5M
YoY Change	-4.23%	-10.93%	-10.93%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	-$44.33M	-$46.87M	-$46.90M
YoY Change
Total Liabilities & Shareholders Equity	$570.2M	$579.6M	$579.6M
YoY Change	-6.86%	-13.12%	-13.13%

Cashflow Statement

Concept	2021 Q1	2020 Q4	2020
OPERATING ACTIVITIES
Net Income	$2.511M	-$2.564M	-$6.771M
YoY Change	-71.51%	-138.6%	-96.13%
Depreciation, Depletion And Amortization	$14.43M	$15.60M	$61.46M
YoY Change	-5.28%	3.59%	2.33%
Cash From Operating Activities	$3.854M	$45.64M	$64.79M
YoY Change	-91.41%	-9.09%	-14.55%
INVESTING ACTIVITIES
Capital Expenditures	$2.514M	-$4.917M	$28.62M
YoY Change	-79.49%	-37.15%	-6.53%
Acquisitions			$0.00
YoY Change			-100.0%
Other Investing Activities	-$1.671M	$20.27M	$31.20M
YoY Change	-128.01%	196.84%	-84.81%
Cash From Investing Activities	-$4.185M	$15.35M	$2.604M
YoY Change	-33.52%	-1641.27%	-98.51%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$17.00K		$9.000K
YoY Change	88.89%		-97.7%
Debt Paid & Issued, Net	$87.79M		$333.6M
YoY Change	-22.21%		-53.92%
Cash From Financing Activities	-$3.515M	-57.89M	-$65.29M
YoY Change	-91.51%	20.24%	-73.68%
NET CHANGE
Cash From Operating Activities	$3.854M	45.64M	$64.79M
Cash From Investing Activities	-$4.185M	15.35M	$2.604M
Cash From Financing Activities	-$3.515M	-57.89M	-$65.29M
Net Change In Cash	-$3.846M	3.096M	$2.102M
YoY Change	37.95%	193.74%	-17.76%
FREE CASH FLOW
Cash From Operating Activities	$3.854M	$45.64M	$64.79M
Capital Expenditures	$2.514M	-$4.917M	$28.62M
Free Cash Flow	$1.340M	$50.55M	$36.16M
YoY Change	-95.89%	-12.87%	-19.98%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0001176334
CY2020	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020	dei	Amendment Flag AmendmentFlag	false
CY2021Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	38893342	shares
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:OtherAccruedLiabilitiesCurrent
CY2019Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:OtherAccruedLiabilitiesCurrent
CY2020	dei	Document Type DocumentType	10-K
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-12-31
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	05-0527861
CY2020	dei	Entity Registrant Name EntityRegistrantName	MARTIN MIDSTREAM PARTNERS L.P.
CY2020	dei	Entity Shell Company EntityShellCompany	false
CY2020Q2	dei	Entity Public Float EntityPublicFloat	37935739	USD
CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	000-50056
CY2020Q4	us-gaap	Assets Current AssetsCurrent	135626000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	181364000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	31497000	USD
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	4200 Stone Road
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	Kilgore
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
CY2020	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	75662
CY2020	dei	City Area Code CityAreaCode	903
CY2020	dei	Local Phone Number LocalPhoneNumber	983-6200
CY2020	dei	Security12b Title Security12bTitle	Common Units representing limited partnership interests
CY2020	dei	Trading Symbol TradingSymbol	MMLP
CY2020	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2020	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2020	dei	Entity Small Business EntitySmallBusiness	false
CY2020	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2020	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	false
CY2020	dei	Entity Shell Company EntityShellCompany	false
CY2021Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	38893342	shares
CY2020Q4	us-gaap	Cash Cash	4958000	USD
CY2019Q4	us-gaap	Cash Cash	2856000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	261000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	532000	USD
CY2020Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	52748000	USD
CY2019Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	87254000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	54122000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	62540000	USD
CY2020Q4	us-gaap	Due From Affiliate Current DueFromAffiliateCurrent	14807000	USD
CY2019Q4	us-gaap	Due From Affiliate Current DueFromAffiliateCurrent	17829000	USD
CY2020Q4	us-gaap	Other Assets Current OtherAssetsCurrent	8991000	USD
CY2019Q4	us-gaap	Other Assets Current OtherAssetsCurrent	5833000	USD
CY2020Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group Current AssetsHeldForSaleNotPartOfDisposalGroupCurrent	0	USD
CY2019Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group Current AssetsHeldForSaleNotPartOfDisposalGroupCurrent	5052000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	889108000	USD
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	884728000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	509237000	USD
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	467531000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	379871000	USD
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	417197000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	16823000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	17705000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	22260000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	23901000	USD
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	22253000	USD
CY2019Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	23422000	USD
CY2020Q4	mmlp	Intangible And Other Assets Net Noncurrent IntangibleAndOtherAssetsNetNoncurrent	2805000	USD
CY2019Q4	mmlp	Intangible And Other Assets Net Noncurrent IntangibleAndOtherAssetsNetNoncurrent	3567000	USD
CY2020Q4	us-gaap	Assets Assets	579638000	USD
CY2019Q4	us-gaap	Assets Assets	667156000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	6758000	USD
CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	51900000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	64802000	USD
CY2020Q4	mmlp	Product Exchange Payables ProductExchangePayables	373000	USD
CY2019Q4	mmlp	Product Exchange Payables ProductExchangePayables	4322000	USD
CY2020Q4	us-gaap	Due To Affiliate Current DueToAffiliateCurrent	435000	USD
CY2019Q4	us-gaap	Due To Affiliate Current DueToAffiliateCurrent	1470000	USD
CY2020Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	556000	USD
CY2019Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	472000	USD
CY2020Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	207000	USD
CY2019Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	667000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	34407000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	28789000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	119375000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	107280000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	484597000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	626509000	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	569788000	USD
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	289000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	717000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	15181000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	16656000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	7067000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	8911000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	703352000	USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Partners Capital PartnersCapital	-46871000	USD
CY2019Q4	us-gaap	Partners Capital PartnersCapital	-36196000	USD
CY2020Q4	mmlp	Partners Capital Total PartnersCapitalTotal	-46871000	USD
CY2019Q4	mmlp	Partners Capital Total PartnersCapitalTotal	-36196000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	579638000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	667156000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	659306000	USD
CY2020	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	183747000	USD
CY2019	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	209313000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	672142000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	847118000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1020104000	USD
CY2020	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	356926000	USD
CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	492795000	USD
CY2018	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	216182000	USD
CY2020	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	40900000	USD
CY2019	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	41433000	USD
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	39116000	USD
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2018	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	61462000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	60060000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	61484000	USD
CY2020	us-gaap	Costs And Expenses CostsAndExpenses	643035000	USD
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	803601000	USD
CY2018	us-gaap	Costs And Expenses CostsAndExpenses	976088000	USD
CY2020	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	12488000	USD
CY2019	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	14587000	USD
CY2018	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	1041000	USD
CY2020	mmlp	Gain Loss On Involuntary Conversion Of Property Plant And Equipment GainLossOnInvoluntaryConversionOfPropertyPlantAndEquipment	4907000	USD
CY2019	mmlp	Gain Loss On Involuntary Conversion Of Property Plant And Equipment GainLossOnInvoluntaryConversionOfPropertyPlantAndEquipment	0	USD
CY2018	mmlp	Gain Loss On Involuntary Conversion Of Property Plant And Equipment GainLossOnInvoluntaryConversionOfPropertyPlantAndEquipment	0	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	46502000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	58104000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	45057000	USD
CY2020	mmlp	Pre Acquisition Income Loss Allocated To Parent PreAcquisitionIncomeLossAllocatedToParent	0	USD
CY2019	mmlp	Pre Acquisition Income Loss Allocated To Parent PreAcquisitionIncomeLossAllocatedToParent	0	USD
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-46210000	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-51690000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-52349000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	3484000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2020	us-gaap	Gains Losses On Restructuring Of Debt GainsLossesOnRestructuringOfDebt	-8817000	USD
CY2019	us-gaap	Gains Losses On Restructuring Of Debt GainsLossesOnRestructuringOfDebt	0	USD
CY2018	us-gaap	Gains Losses On Restructuring Of Debt GainsLossesOnRestructuringOfDebt	0	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	38000	USD
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-51537000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-51684000	USD
CY2018	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-52311000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-5035000	USD
CY2018	mmlp	Pre Acquisition Income Loss Allocated To Parent PreAcquisitionIncomeLossAllocatedToParent	11550000	USD
CY2020	mmlp	Income Loss Allocable To Unvested Restricted Unit Income IncomeLossAllocableToUnvestedRestrictedUnitIncome	-21000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	6420000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-7254000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1736000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1900000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	577000	USD
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-6771000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	4520000	USD
CY2018	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-7831000	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-179466000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	63486000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-6771000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-174946000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	55655000	USD
CY2020	us-gaap	Net Income Loss Allocated To General Partners NetIncomeLossAllocatedToGeneralPartners	-135000	USD
CY2019	us-gaap	Net Income Loss Allocated To General Partners NetIncomeLossAllocatedToGeneralPartners	-3499000	USD
CY2018	us-gaap	Net Income Loss Allocated To General Partners NetIncomeLossAllocatedToGeneralPartners	882000	USD
CY2019	mmlp	Income Loss Allocable To Unvested Restricted Unit Income IncomeLossAllocableToUnvestedRestrictedUnitIncome	41000	USD
CY2018	mmlp	Income Loss Allocable To Unvested Restricted Unit Income IncomeLossAllocableToUnvestedRestrictedUnitIncome	28000	USD
CY2020	us-gaap	Net Income Loss Allocated To Limited Partners NetIncomeLossAllocatedToLimitedPartners	-6615000	USD
CY2019	us-gaap	Net Income Loss Allocated To Limited Partners NetIncomeLossAllocatedToLimitedPartners	-171488000	USD
CY2018	us-gaap	Net Income Loss Allocated To Limited Partners NetIncomeLossAllocatedToLimitedPartners	43195000	USD
CY2020	mmlp	Operating Expenses Related Party OperatingExpensesRelatedParty	80075000	USD
CY2019	mmlp	Operating Expenses Related Party OperatingExpensesRelatedParty	88194000	USD
CY2018	mmlp	Operating Expenses Related Party OperatingExpensesRelatedParty	90878000	USD
CY2020	mmlp	Selling General And Administrative Expense Related Party SellingGeneralAndAdministrativeExpenseRelatedParty	32886000	USD
CY2019	mmlp	Selling General And Administrative Expense Related Party SellingGeneralAndAdministrativeExpenseRelatedParty	32622000	USD
CY2018	mmlp	Selling General And Administrative Expense Related Party SellingGeneralAndAdministrativeExpenseRelatedParty	26441000	USD
CY2020	mmlp	Income Loss From Continuing Operations Attributable To Limited Partners Interest IncomeLossFromContinuingOperationsAttributableToLimitedPartnersInterest	-6615000	USD
CY2019	mmlp	Income Loss From Continuing Operations Attributable To Limited Partners Interest IncomeLossFromContinuingOperationsAttributableToLimitedPartnersInterest	4430000	USD
CY2018	mmlp	Income Loss From Continuing Operations Attributable To Limited Partners Interest IncomeLossFromContinuingOperationsAttributableToLimitedPartnersInterest	-18982000	USD
CY2020	mmlp	Income Loss From Discontinuing Operations Attributable To Limited Partners Interest IncomeLossFromDiscontinuingOperationsAttributableToLimitedPartnersInterest	0	USD
CY2019	mmlp	Income Loss From Discontinuing Operations Attributable To Limited Partners Interest IncomeLossFromDiscontinuingOperationsAttributableToLimitedPartnersInterest	-175918000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Outstanding Limited Partnership Unit Basic IncomeLossFromDiscontinuedOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitBasic	-4.55
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Outstanding Limited Partnership Unit Basic IncomeLossFromDiscontinuedOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitBasic	1.60
CY2020	us-gaap	Net Income Loss Per Outstanding Limited Partnership Unit Basic Net Of Tax NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	-0.17
CY2019	us-gaap	Net Income Loss Per Outstanding Limited Partnership Unit Basic Net Of Tax NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	-4.44
CY2018	us-gaap	Net Income Loss Per Outstanding Limited Partnership Unit Basic Net Of Tax NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	1.11
CY2020	us-gaap	Weighted Average Limited Partnership Units Outstanding WeightedAverageLimitedPartnershipUnitsOutstanding	38657000	shares
CY2019	us-gaap	Weighted Average Limited Partnership Units Outstanding WeightedAverageLimitedPartnershipUnitsOutstanding	38659000	shares
CY2018	us-gaap	Weighted Average Limited Partnership Units Outstanding WeightedAverageLimitedPartnershipUnitsOutstanding	38907000	shares
CY2020	us-gaap	Income Loss From Continuing Operations Net Of Tax Per Outstanding Limited Partnership Unit Diluted IncomeLossFromContinuingOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	-0.17
CY2019	us-gaap	Income Loss From Continuing Operations Net Of Tax Per Outstanding Limited Partnership Unit Diluted IncomeLossFromContinuingOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	0.11
CY2018	us-gaap	Income Loss From Continuing Operations Net Of Tax Per Outstanding Limited Partnership Unit Diluted IncomeLossFromContinuingOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	-0.49
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Outstanding Limited Partnership Unit Diluted1 IncomeLossFromDiscontinuedOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted1	0
CY2018	mmlp	Income Loss From Discontinuing Operations Attributable To Limited Partners Interest IncomeLossFromDiscontinuingOperationsAttributableToLimitedPartnersInterest	62177000	USD
CY2020	us-gaap	Net Income Loss Allocated To Limited Partners NetIncomeLossAllocatedToLimitedPartners	-6615000	USD
CY2019	us-gaap	Net Income Loss Allocated To Limited Partners NetIncomeLossAllocatedToLimitedPartners	-171488000	USD
CY2018	us-gaap	Net Income Loss Allocated To Limited Partners NetIncomeLossAllocatedToLimitedPartners	43195000	USD
CY2020	mmlp	Income Loss From Continuing Operations Attributable To General Partners Interest IncomeLossFromContinuingOperationsAttributableToGeneralPartnersInterest	-135000	USD
CY2019	mmlp	Income Loss From Continuing Operations Attributable To General Partners Interest IncomeLossFromContinuingOperationsAttributableToGeneralPartnersInterest	91000	USD
CY2018	mmlp	Income Loss From Continuing Operations Attributable To General Partners Interest IncomeLossFromContinuingOperationsAttributableToGeneralPartnersInterest	-387000	USD
CY2020	mmlp	Income Loss From Discontinuing Operations Attributable To General Partners Interest IncomeLossFromDiscontinuingOperationsAttributableToGeneralPartnersInterest	0	USD
CY2019	mmlp	Income Loss From Discontinuing Operations Attributable To General Partners Interest IncomeLossFromDiscontinuingOperationsAttributableToGeneralPartnersInterest	-3590000	USD
CY2018	mmlp	Income Loss From Discontinuing Operations Attributable To General Partners Interest IncomeLossFromDiscontinuingOperationsAttributableToGeneralPartnersInterest	1269000	USD
CY2020	us-gaap	Net Income Loss Allocated To General Partners NetIncomeLossAllocatedToGeneralPartners	-135000	USD
CY2019	us-gaap	Net Income Loss Allocated To General Partners NetIncomeLossAllocatedToGeneralPartners	-3499000	USD
CY2018	us-gaap	Net Income Loss Allocated To General Partners NetIncomeLossAllocatedToGeneralPartners	882000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	-0.17
CY2019	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	0.11
CY2018	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	-0.49
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Outstanding Limited Partnership Unit Basic IncomeLossFromDiscontinuedOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitBasic	0
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Outstanding Limited Partnership Unit Diluted1 IncomeLossFromDiscontinuedOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted1	-4.55
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Outstanding Limited Partnership Unit Diluted1 IncomeLossFromDiscontinuedOperationsNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted1	1.60
CY2020	us-gaap	Net Income Loss Net Of Tax Per Outstanding Limited Partnership Unit Diluted NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	-0.17
CY2019	us-gaap	Net Income Loss Net Of Tax Per Outstanding Limited Partnership Unit Diluted NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	-4.44
CY2018	us-gaap	Net Income Loss Net Of Tax Per Outstanding Limited Partnership Unit Diluted NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	1.11
CY2020	us-gaap	Weighted Average Limited Partnership Units Outstanding Diluted WeightedAverageLimitedPartnershipUnitsOutstandingDiluted	38657000	shares
CY2019	us-gaap	Weighted Average Limited Partnership Units Outstanding Diluted WeightedAverageLimitedPartnershipUnitsOutstandingDiluted	38659000	shares
CY2018	us-gaap	Weighted Average Limited Partnership Units Outstanding Diluted WeightedAverageLimitedPartnershipUnitsOutstandingDiluted	38923000	shares
CY2017Q4	us-gaap	Partners Capital PartnersCapital	322481000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	55655000	USD
CY2018	mmlp	Partners Capital Account Public Sale Of Units Net PartnersCapitalAccountPublicSaleOfUnitsNet	-118000	USD
CY2018	us-gaap	Partners Capital Account Contributions PartnersCapitalAccountContributions	0	USD
CY2018	us-gaap	Partners Capital Account Distributions PartnersCapitalAccountDistributions	78441000	USD
CY2018	us-gaap	Limited Partners Capital Account Distribution Amount LimitedPartnersCapitalAccountDistributionAmount	12070000	USD
CY2018	us-gaap	Limited Partners Capital Account Distribution Amount LimitedPartnersCapitalAccountDistributionAmount	12070000	USD
CY2018	mmlp	Adjustmentto Partners Capital Reimbursementof Excess Purchase Price Over Carrying Valueof Acquired Assets AdjustmenttoPartnersCapitalReimbursementofExcessPurchasePriceOverCarryingValueofAcquiredAssets	0	USD
CY2018	mmlp	Partners Capital Account Decrease From Business Combination PartnersCapitalAccountDecreaseFromBusinessCombination	26000	USD
CY2018	us-gaap	Partners Capital Account Unit Based Compensation PartnersCapitalAccountUnitBasedCompensation	1224000	USD
CY2018	us-gaap	Partners Capital Account Treasury Units Purchases PartnersCapitalAccountTreasuryUnitsPurchases	273000	USD
CY2018Q4	us-gaap	Partners Capital PartnersCapital	288432000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-174946000	USD
CY2019	mmlp	Partners Capital Account Public Sale Of Units Net PartnersCapitalAccountPublicSaleOfUnitsNet	-289000	USD
CY2019	us-gaap	Partners Capital Account Distributions PartnersCapitalAccountDistributions	49093000	USD
CY2019	mmlp	Adjustmentto Partners Capital Excess Purchase Price Over Carrying Valueof Acquired Assets AdjustmenttoPartnersCapitalExcessPurchasePriceOverCarryingValueofAcquiredAssets	102393000	USD
CY2019	mmlp	Partners Capital Account Acquired Deferred Taxes PartnersCapitalAccountAcquiredDeferredTaxes	24781000	USD
CY2019	us-gaap	Partners Capital Account Unit Based Compensation PartnersCapitalAccountUnitBasedCompensation	1424000	USD
CY2019	us-gaap	Partners Capital Account Treasury Units Purchases PartnersCapitalAccountTreasuryUnitsPurchases	392000	USD
CY2019	us-gaap	Partners Capital Account Return Of Capital PartnersCapitalAccountReturnOfCapital	23720000	USD
CY2019Q4	us-gaap	Partners Capital PartnersCapital	-36196000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-6771000	USD
CY2020	us-gaap	Partners Capital Account Distributions PartnersCapitalAccountDistributions	5317000	USD
CY2020	us-gaap	Partners Capital Account Unit Based Compensation PartnersCapitalAccountUnitBasedCompensation	1422000	USD
CY2020	us-gaap	Partners Capital Account Treasury Units Purchases PartnersCapitalAccountTreasuryUnitsPurchases	9000	USD
CY2020Q4	us-gaap	Partners Capital PartnersCapital	-46871000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-6771000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-174946000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	55655000	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-179466000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	63486000	USD
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-6771000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	4520000	USD
CY2018	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-7831000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	61462000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	60060000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	61484000	USD
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	3422000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4041000	USD
CY2018	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	3445000	USD
CY2020	mmlp	Amortizationof Debt Premium AmortizationofDebtPremium	191000	USD
CY2019	mmlp	Amortizationof Debt Premium AmortizationofDebtPremium	306000	USD
CY2018	mmlp	Amortizationof Debt Premium AmortizationofDebtPremium	306000	USD
CY2018	us-gaap	Increase Decrease In Derivative Assets IncreaseDecreaseInDerivativeAssets	14024000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1169000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1360000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	208000	USD
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	9788000	USD
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	13332000	USD
CY2018	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	1041000	USD
CY2020	mmlp	Gain Loss On Involuntary Conversion Of Property Plant And Equipment GainLossOnInvoluntaryConversionOfPropertyPlantAndEquipment	4907000	USD
CY2019	mmlp	Gain Loss On Involuntary Conversion Of Property Plant And Equipment GainLossOnInvoluntaryConversionOfPropertyPlantAndEquipment	0	USD
CY2018	mmlp	Gain Loss On Involuntary Conversion Of Property Plant And Equipment GainLossOnInvoluntaryConversionOfPropertyPlantAndEquipment	0	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	3484000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2020	mmlp	Gain On Exchange Of Senior Unsecured Notes GainOnExchangeOfSeniorUnsecuredNotes	749000	USD
CY2019	mmlp	Gain On Exchange Of Senior Unsecured Notes GainOnExchangeOfSeniorUnsecuredNotes	0	USD
CY2018	mmlp	Gain On Exchange Of Senior Unsecured Notes GainOnExchangeOfSeniorUnsecuredNotes	0	USD
CY2020	us-gaap	Increase Decrease In Derivative Assets IncreaseDecreaseInDerivativeAssets	-8209000	USD
CY2019	us-gaap	Increase Decrease In Derivative Assets IncreaseDecreaseInDerivativeAssets	-5137000	USD
CY2018	mmlp	Derivative Net Cash Receivedon Hedge DerivativeNetCashReceivedonHedge	13948000	USD
CY2020	mmlp	Derivative Net Cash Receivedon Hedge DerivativeNetCashReceivedonHedge	-8669000	USD
CY2019	mmlp	Derivative Net Cash Receivedon Hedge DerivativeNetCashReceivedonHedge	-4466000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	1422000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	1424000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	1224000	USD
CY2020	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-30741000	USD
CY2019	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-62000	USD
CY2018	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-29085000	USD
CY2020	mmlp	Increase Decrease In Product Exchange Receivables IncreaseDecreaseInProductExchangeReceivables	0	USD
CY2019	mmlp	Increase Decrease In Product Exchange Receivables IncreaseDecreaseInProductExchangeReceivables	-166000	USD
CY2018	mmlp	Increase Decrease In Product Exchange Receivables IncreaseDecreaseInProductExchangeReceivables	137000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-5264000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-21493000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-13370000	USD
CY2020	us-gaap	Increase Decrease In Due From Affiliates Current IncreaseDecreaseInDueFromAffiliatesCurrent	-2932000	USD
CY2019	us-gaap	Increase Decrease In Due From Affiliates Current IncreaseDecreaseInDueFromAffiliatesCurrent	-1822000	USD
CY2018	us-gaap	Increase Decrease In Due From Affiliates Current IncreaseDecreaseInDueFromAffiliatesCurrent	-5961000	USD
CY2020	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	5733000	USD
CY2019	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	254000	USD
CY2018	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-1485000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	-7318000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	-898000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	-27321000	USD
CY2020	mmlp	Increase Decrease In Product Exchange Payables IncreaseDecreaseInProductExchangePayables	-3949000	USD
CY2019	mmlp	Increase Decrease In Product Exchange Payables IncreaseDecreaseInProductExchangePayables	-7781000	USD
CY2018	mmlp	Increase Decrease In Product Exchange Payables IncreaseDecreaseInProductExchangePayables	555000	USD
CY2020	us-gaap	Increase Decrease In Due To Affiliates Current IncreaseDecreaseInDueToAffiliatesCurrent	-1035000	USD
CY2019	us-gaap	Increase Decrease In Due To Affiliates Current IncreaseDecreaseInDueToAffiliatesCurrent	-1469000	USD
CY2018	us-gaap	Increase Decrease In Due To Affiliates Current IncreaseDecreaseInDueToAffiliatesCurrent	99000	USD
CY2020	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	84000	USD
CY2019	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	27000	USD
CY2018	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-65000	USD
CY2020	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	4144000	USD
CY2019	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-3017000	USD
CY2018	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-6636000	USD
CY2020	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	1470000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	543000	USD
CY2018	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	-1206000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	64785000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	68046000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	74709000	USD
CY2020	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	0	USD
CY2019	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	7769000	USD
CY2018	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	30321000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	64785000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	75815000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	105030000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	28622000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	23720000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-34327000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	30621000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	35255000	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2020	mmlp	Payments For Plant Turnaround Costs PaymentsForPlantTurnaroundCosts	1478000	USD
CY2019	mmlp	Payments For Plant Turnaround Costs PaymentsForPlantTurnaroundCosts	5677000	USD
CY2018	mmlp	Payments For Plant Turnaround Costs PaymentsForPlantTurnaroundCosts	1893000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	25154000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	20660000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	11483000	USD
CY2020	mmlp	Proceeds From Involuntary Conversion Of Property Plantand Equipment ProceedsFromInvoluntaryConversionOfPropertyPlantandEquipment	7550000	USD
CY2019	mmlp	Proceeds From Involuntary Conversion Of Property Plantand Equipment ProceedsFromInvoluntaryConversionOfPropertyPlantandEquipment	5031000	USD
CY2018	mmlp	Proceeds From Involuntary Conversion Of Property Plantand Equipment ProceedsFromInvoluntaryConversionOfPropertyPlantandEquipment	0	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	2604000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-25665000	USD
CY2020	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	0	USD
CY2019	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	209155000	USD
CY2018	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	173287000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	2604000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	174828000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	147622000	USD
CY2020	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	338199000	USD
CY2019	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	729514000	USD
CY2018	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	559201000	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	282019000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	638000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	399000000	USD
CY2020	mmlp	Proceedsfrom Issuanceof Common Stock Net ProceedsfromIssuanceofCommonStockNet	0	USD
CY2019	mmlp	Proceedsfrom Issuanceof Common Stock Net ProceedsfromIssuanceofCommonStockNet	-289000	USD
CY2018	mmlp	Proceedsfrom Issuanceof Common Stock Net ProceedsfromIssuanceofCommonStockNet	-118000	USD
CY2020	mmlp	Payments Of Distributions To Limited Partner PaymentsOfDistributionsToLimitedPartner	0	USD
CY2019	mmlp	Payments Of Distributions To Limited Partner PaymentsOfDistributionsToLimitedPartner	0	USD
CY2018	mmlp	Payments Of Distributions To Limited Partner PaymentsOfDistributionsToLimitedPartner	12070000	USD
CY2020	mmlp	Excess Purchase Price Over Carrying Valueof Acquired Assets ExcessPurchasePriceOverCarryingValueofAcquiredAssets	0	USD
CY2019	mmlp	Excess Purchase Price Over Carrying Valueof Acquired Assets ExcessPurchasePriceOverCarryingValueofAcquiredAssets	102393000	USD
CY2018	mmlp	Excess Purchase Price Over Carrying Valueof Acquired Assets ExcessPurchasePriceOverCarryingValueofAcquiredAssets	26000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	9000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	392000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	273000	USD
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	3781000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	4406000	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1312000	USD
CY2020	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	5317000	USD
CY2019	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	49093000	USD
CY2018	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	78441000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-65287000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-248087000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-252441000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	2102000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	2556000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	211000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2856000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	300000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	89000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	4958000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2856000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	300000	USD
CY2020	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	4	segment
CY2020Q1	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	4352000	USD
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4	segment
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
CY2020	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
CY2018	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	3781000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	4406000	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1312000	USD
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	3422000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4041000	USD
CY2018	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	3445000	USD
CY2020Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	22655000	USD
CY2019Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	24644000	USD
CY2020	us-gaap	Derivatives Methods Of Accounting Hedging Derivatives DerivativesMethodsOfAccountingHedgingDerivatives	Derivative Instruments and Hedging Activities<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div style="text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In accordance with certain provisions of ASC 815-10 related to accounting for derivative instruments and hedging activities, all derivatives and hedging instruments are included in the Consolidated Balance Sheets as an asset or liability measured at fair value and changes in fair value are recognized currently in earnings unless specific hedge accounting criteria are met. If a derivative qualifies for hedge accounting, changes in the fair value can be offset against the change in the fair value of the hedged item through earnings or recognized in other comprehensive income until such time as the hedged item is recognized in earnings.</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div>Derivative instruments not designated as hedges are marked to market with all market value adjustments being recorded in the Consolidated Statements of Operations.
CY2020	us-gaap	Use Of Estimates UseOfEstimates	Use of EstimatesManagement has made a number of estimates and assumptions relating to the reporting of assets and liabilities and the disclosure of contingent assets and liabilities to prepare these consolidated financial statements in conformity with accounting principles generally accepted in the U.S. Actual results could differ from those estimates.
CY2020	us-gaap	Increase Decrease In Assets Held For Sale IncreaseDecreaseInAssetsHeldForSale	-700000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	60418000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	56673000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	56839000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	43829000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	45172000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	294141000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	557072000	USD
CY2020Q4	us-gaap	Energy Related Inventory Natural Gas Liquids EnergyRelatedInventoryNaturalGasLiquids	27878000	USD
CY2019Q4	us-gaap	Energy Related Inventory Natural Gas Liquids EnergyRelatedInventoryNaturalGasLiquids	19097000	USD
CY2020Q4	mmlp	Sulfur Sulfur	24000	USD
CY2019Q4	mmlp	Sulfur Sulfur	4586000	USD
CY2020Q4	mmlp	Sulfur Based Products SulfurBasedProducts	10854000	USD
CY2019Q4	mmlp	Sulfur Based Products SulfurBasedProducts	15852000	USD
CY2020Q4	us-gaap	Energy Related Inventory Chemicals EnergyRelatedInventoryChemicals	11002000	USD
CY2019Q4	us-gaap	Energy Related Inventory Chemicals EnergyRelatedInventoryChemicals	18925000	USD
CY2020Q4	us-gaap	Energy Related Inventory Other Fossil Fuel EnergyRelatedInventoryOtherFossilFuel	4364000	USD
CY2019Q4	us-gaap	Energy Related Inventory Other Fossil Fuel EnergyRelatedInventoryOtherFossilFuel	4080000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	54122000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	62540000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	889108000	USD
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	884728000	USD
CY2020	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	55817000	USD
CY2019	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	53856000	USD
CY2018	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	58615000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1755000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	2686000	USD
CY2018	us-gaap	Capital Leases Income Statement Amortization Expense CapitalLeasesIncomeStatementAmortizationExpense	1174000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset Before Accumulated Amortization FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization	10352000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset Before Accumulated Amortization FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization	15367000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	3703000	USD
CY2019Q4	mmlp	Capital Leased Assets Accumulated Amortization CapitalLeasedAssetsAccumulatedAmortization	3941000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	468000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	3791000	USD
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	2166000	USD
CY2020	mmlp	Finance Lease Right Of Use Asset Additions FinanceLeaseRightOfUseAssetAdditions	83000	USD
CY2019	mmlp	Finance Lease Right Of Use Asset Additions FinanceLeaseRightOfUseAssetAdditions	1308000	USD
CY2018	mmlp	Capital Leased Assets Additions CapitalLeasedAssetsAdditions	10472000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	16823000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	17705000	USD
CY2020	mmlp	Lessee Lease Termination Period LesseeLeaseTerminationPeriod	P1Y
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	10672000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	10805000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1755000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	2686000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	294000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	671000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	13187000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	13756000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	109000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	92000	USD
CY2020	us-gaap	Lease Cost LeaseCost	26017000	USD
CY2019	us-gaap	Lease Cost LeaseCost	28010000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	23996000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	24526000	USD
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	294000	USD
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	671000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	3701000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	5517000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	7779000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	9122000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	83000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	1309000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	22260000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	23901000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	7529000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	7722000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	15181000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	16656000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	22710000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	24378000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset Before Accumulated Amortization FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization	10352000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset Before Accumulated Amortization FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization	15367000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	3703000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	3941000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	6649000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	11426000	USD
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	2707000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	6758000	USD
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	289000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	717000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	2996000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	7475000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y10M13D
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y3M3D
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P1Y4M20D
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P0Y11M19D
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0504
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0527
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0604
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0683
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	8445000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	2733000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	6016000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	289000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	3250000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	9000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1727000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	0	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1111000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	5830000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	26379000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	3031000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	3669000	USD
CY2020Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	35000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	22710000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	2996000	USD
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	20333000	USD
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	13692000	USD
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	13297000	USD
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	13297000	USD
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	12908000	USD
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	38539000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	33000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	1000	USD
CY2020Q4	us-gaap	Interest Payable Current InterestPayableCurrent	16104000	USD
CY2019Q4	us-gaap	Interest Payable Current InterestPayableCurrent	10761000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	1692000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	25000	USD
CY2020Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	4869000	USD
CY2019Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	5411000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	3244000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	3011000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	7529000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	7722000	USD
CY2020Q4	mmlp	Miscellaneous Accrued Liabilities Current MiscellaneousAccruedLiabilitiesCurrent	969000	USD
CY2020Q4	mmlp	Catalysts And Turnaround Costs Net CatalystsAndTurnaroundCostsNet	803000	USD
CY2019Q4	mmlp	Catalysts And Turnaround Costs Net CatalystsAndTurnaroundCostsNet	1655000	USD
CY2020Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	586000	USD
CY2019Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	936000	USD
CY2020Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	1416000	USD
CY2019Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	976000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2805000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	3567000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5235000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5797000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2353000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	3222000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	926000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	245000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	62000	USD
CY2019Q4	mmlp	Miscellaneous Accrued Liabilities Current MiscellaneousAccruedLiabilitiesCurrent	1859000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	34407000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	28789000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	8936000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	12429000	USD
CY2020	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	918000	USD
CY2019	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	0	USD
CY2020	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	410000	USD
CY2019	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	407000	USD
CY2020	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1505000	USD
CY2019	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	3900000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	8759000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	8936000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	1692000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	569788000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	25000	USD
CY2020Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	7067000	USD
CY2019Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	8911000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	513387000	USD
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	28790000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	0	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	484597000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	569788000	USD
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	2707000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	6758000	USD
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	289000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	717000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	2996000	USD
CY2020	us-gaap	Debt Instrument Basis Spread On Variable Rate1 DebtInstrumentBasisSpreadOnVariableRate1	0.0375
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	7475000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	37678000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	48025000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	50543000	USD
CY2020	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	43000	USD
CY2019	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	5000	USD
CY2018	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	624000	USD
CY2020Q4	us-gaap	Limited Partners Capital Account Units Outstanding LimitedPartnersCapitalAccountUnitsOutstanding	38851174	shares
CY2020	mmlp	Limited Partners Capital Account Distribution Period LimitedPartnersCapitalAccountDistributionPeriod	P45D
CY2020	us-gaap	Weighted Average Limited Partnership Units Outstanding WeightedAverageLimitedPartnershipUnitsOutstanding	38656559	shares
CY2019	us-gaap	Weighted Average Limited Partnership Units Outstanding WeightedAverageLimitedPartnershipUnitsOutstanding	38658881	shares
CY2018	us-gaap	Weighted Average Limited Partnership Units Outstanding WeightedAverageLimitedPartnershipUnitsOutstanding	38907000	shares
CY2020	us-gaap	Weighted Average Numer Diluted Limited Partnership Units Outstanding Adjustment WeightedAverageNumerDilutedLimitedPartnershipUnitsOutstandingAdjustment	0	shares
CY2019	us-gaap	Weighted Average Numer Diluted Limited Partnership Units Outstanding Adjustment WeightedAverageNumerDilutedLimitedPartnershipUnitsOutstandingAdjustment	0	shares
CY2018	us-gaap	Weighted Average Numer Diluted Limited Partnership Units Outstanding Adjustment WeightedAverageNumerDilutedLimitedPartnershipUnitsOutstandingAdjustment	15678	shares
CY2020	us-gaap	Weighted Average Limited Partnership Units Outstanding Diluted WeightedAverageLimitedPartnershipUnitsOutstandingDiluted	38656559	shares
CY2019	us-gaap	Weighted Average Limited Partnership Units Outstanding Diluted WeightedAverageLimitedPartnershipUnitsOutstandingDiluted	38658881	shares
CY2018	us-gaap	Weighted Average Limited Partnership Units Outstanding Diluted WeightedAverageLimitedPartnershipUnitsOutstandingDiluted	38922678	shares
CY2017Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	3000000	shares
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-174000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	174000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	741000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	366000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	369000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	567000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	540000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	369000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	1027000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	882000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	142000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	478000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	208000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1169000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1360000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	208000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1736000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1900000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	577000	USD
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	416000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	515000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	431000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	59000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	64000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	13893000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	15245000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	244000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	500000	USD
CY2020Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	0	USD
CY2019Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	658000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	12671000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	12879000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	251000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	147000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	27118000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	29493000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	27118000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	29493000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	4861000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	6069000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	4000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	2000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	0	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	0	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	4865000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	6071000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	22253000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	23422000	USD
CY2020Q4	mmlp	Difference Between Partnership Tax Basis And Reported Amounts DifferenceBetweenPartnershipTaxBasisAndReportedAmounts	88526000	USD
CY2019Q4	mmlp	Difference Between Partnership Tax Basis And Reported Amounts DifferenceBetweenPartnershipTaxBasisAndReportedAmounts	78649000	USD
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4	segment
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	672142000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	61462000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	46502000	USD
CY2020	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	26777000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	847118000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	60060000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	58104000	USD
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	37923000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1020104000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	61484000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	45057000	USD
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	35214000	USD
CY2020Q4	us-gaap	Assets Assets	579638000	USD
CY2019Q4	us-gaap	Assets Assets	667156000	USD
CY2020Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	198883000	USD
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	140638000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	152533000	USD
CY2020Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	180088000	USD
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	15600000	USD
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	7960000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	11013000	USD
CY2020Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	11928000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	8815000	USD
CY2020Q2	mmlp	Net Income Loss Per Outstanding Limited Partnership Unit Basicand Diluted NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicandDiluted	-0.06
CY2020Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-2203000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-10819000	USD
CY2020Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-2564000	USD
CY2020Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2020Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2020Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2020Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	8815000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-2203000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-10819000	USD
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	-2564000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	0.23
CY2020Q2	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	-0.06
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	-0.28
CY2020Q4	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	-0.07
CY2020Q1	mmlp	Net Income Loss Per Outstanding Limited Partnership Unit Basicand Diluted NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicandDiluted	0.22
CY2020Q3	mmlp	Net Income Loss Per Outstanding Limited Partnership Unit Basicand Diluted NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicandDiluted	-0.27
CY2020Q4	mmlp	Net Income Loss Per Outstanding Limited Partnership Unit Basicand Diluted NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicandDiluted	-0.06
CY2019Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	240033000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	187323000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	177900000	USD
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	241862000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	9606000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	5010000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	25461000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	18027000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-4758000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-10614000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	13250000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	6642000	USD
CY2019Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	1102000	USD
CY2019Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	-180568000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	6642000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	-0.12
CY2019Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2019Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	-3656000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	-191182000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	13250000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	-0.27
CY2019Q3	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	0.34
CY2019Q4	us-gaap	Income Loss From Continuing Operations Per Outstanding Limited Partnership Unit Basic Net Of Tax IncomeLossFromContinuingOperationsPerOutstandingLimitedPartnershipUnitBasicNetOfTax	0.17
CY2019Q1	mmlp	Net Income Loss Per Outstanding Limited Partnership Unit Basicand Diluted NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicandDiluted	0.09
CY2019Q2	mmlp	Net Income Loss Per Outstanding Limited Partnership Unit Basicand Diluted NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicandDiluted	-4.82
CY2019Q3	mmlp	Net Income Loss Per Outstanding Limited Partnership Unit Basicand Diluted NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicandDiluted	0.33
CY2019Q4	mmlp	Net Income Loss Per Outstanding Limited Partnership Unit Basicand Diluted NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicandDiluted	0.14

Files In Submission

Name	View Source	Status
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0001176334-21-000061-index.html	Edgar Link	pending
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$MMLP
MARTIN MIDSTREAM PARTNERS L.P. Stock $mmlp

2021 Q1 Form 10-K Financial Statement

#000117633421000061 Filed on March 03, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MMLP MARTIN MIDSTREAM PARTNERS L.P. Stock $mmlp

2021 Q1 Form 10-K Financial Statement

#000117633421000061 Filed on March 03, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MMLP
MARTIN MIDSTREAM PARTNERS L.P. Stock $mmlp