Name:	mtor_AccountsReceivableFactoringAndSecuritizationLineItems
Namespace Prefix:	mtor_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Costs associated with off balance sheet factoring arrangements.

No definition available.

Name:	mtor_CostsAssociatedWithOffBalanceSheetFactoringArrangements
Namespace Prefix:	mtor_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Maximum limit for sale of eligible trade receivables.

No definition available.

Name:	mtor_MaximumLimitForSaleOfEligibleTradeReceivables
Namespace Prefix:	mtor_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Maximum Limit For Securitization Financing Arrangement.

No definition available.

Name:	mtor_MaximumLimitForSecuritizationFinancingArrangement
Namespace Prefix:	mtor_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Outstanding balance under accounts receivable securitization program at the end of the reporting period.

No definition available.

Name:	mtor_OutstandingBalanceUnderAccountsReceivableSecuritizationProgram
Namespace Prefix:	mtor_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Ratio of Total Priority Debt (consisting principally of amounts outstanding under revolving credit facility, U.S. accounts receivable securitization and factoring programs, and third-party non-working capital foreign debt) to EBITDA Through Period End

No definition available.

Name:	mtor_RatioofTotalPriorityDebttoEBITDAThroughPeriodEnd
Namespace Prefix:	mtor_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

Utilization Of Accounts Receivable Factoring Facility Under Arrangement.

No definition available.

Name:	mtor_UtilizationOfAccountsReceivableFactoringFacilityUnderArrangement
Namespace Prefix:	mtor_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

No definition available.

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Name:	us-gaap_DebtInstrumentAxis=mtor_USSecuritizationFinancingFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_StatementGeographicalAxis=mtor_SwedenFactoringFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_StatementGeographicalAxis=mtor_USFactoringFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_StatementGeographicalAxis=mtor_UnitedKingdomFactoringFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_StatementGeographicalAxis=mtor_ItalyFactoringFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: