Name:	mpaa_IncreaseDecreaseInMaximumBorrowingCapacity
Namespace Prefix:	mpaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	mpaa_MaximumAmountOfCapitalExpendituresByFiscalYearAbstract
Namespace Prefix:	mpaa_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The maximum amount of capital expenditures to which the entity is restricted, pursuant to a debt agreement, in the current fiscal period.

No definition available.

Name:	mpaa_MaximumAmountOfCapitalExpendituresCurrentFiscalPeriod
Namespace Prefix:	mpaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

The maximum amount of capital expenditures to which the entity is restricted, pursuant to a debt agreement, in the fourth fiscal period subsequent to the balance sheet date.

No definition available.

Name:	mpaa_MaximumAmountOfCapitalExpendituresFiscalPeriodFour
Namespace Prefix:	mpaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

The maximum amount of capital expenditures to which the entity is restricted, pursuant to a debt agreement, in the first fiscal period subsequent to the balance sheet date.

No definition available.

Name:	mpaa_MaximumAmountOfCapitalExpendituresFiscalPeriodOne
Namespace Prefix:	mpaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

The maximum amount of capital expenditures to which the entity is restricted, pursuant to a debt agreement, in the third fiscal period subsequent to the balance sheet date.

No definition available.

Name:	mpaa_MaximumAmountOfCapitalExpendituresFiscalPeriodThree
Namespace Prefix:	mpaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

The maximum amount of capital expenditures to which the entity is restricted, pursuant to a debt agreement, in the second fiscal period subsequent to the balance sheet date.

No definition available.

Name:	mpaa_MaximumAmountOfCapitalExpendituresFiscalPeriodTwo
Namespace Prefix:	mpaa_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5