XML 58 R47.htm IDEA: XBRL DOCUMENT
v3.25.3

Contract Assets (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Contract Assets [Abstract] |  |  |  |
Long-term contract assets, write-down | $ 1,225,000 | $ 1,164,000 | $ 2,251,000 | $ 1,558,000
Reduction in carrying value of remanufactured cores and long-term core inventory deposit | $ 14,154,000 |  | $ 14,154,000 |

X
- Definition Amount of loss from reductions in long-term contract assets due to quarterly revaluation of contract assets. + References No definition available. + Details
Name: | mpaa_LongTermContractAssetsWriteDown
Namespace Prefix: | mpaa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of reduction in the carrying value of remanufactured cores held at customers’ locations and long-term core inventory deposits, recognized during the period, in connection with the realignment of inventory at certain customer distribution centers. + References No definition available. + Details
Name: | mpaa_ReductionInCarryingValueOfRemanufacturedCoresAndLongTermCoreInventoryDeposits
Namespace Prefix: | mpaa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_ContractWithCustomerAssetNetAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration