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Financial Risk Management and Derivatives - Financial Risk Management and Derivatives (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Loss from Forward Foreign Currency Exchange Contracts [Member] | Foreign Exchange Impact of Lease Liabilities and Forward Contracts [Member]
Offsetting Assets [Line Items]
(Loss) gain from forward foreign currency exchange contracts	$ (585,000)	$ 541,000	$ (7,404,000)	$ (1,771,000)

X

- Definition

Amount of gain (loss) from the increase (decrease) in fair value of foreign currency exchange contract derivatives not designated as hedging instruments.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=mpaa_ForeignCurrencyTransactionGainLossMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: