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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)

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- 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

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- 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_
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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