XML 33 R21.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Accounts Receivable Discount Programs | 9 Months Ended
--- | ---
Dec. 31, 2018
Accounts Receivable Discount Programs [Abstract] |
Accounts Receivable Discount Programs |
13. | Accounts Receivable Discount Programs
The Company uses receivable discount programs with certain customers and their respective banks. Under these programs, the Company may sell those customers’ receivables to those banks at a discount to be agreed upon at the time the receivables are sold. These discount arrangements allow the Company to accelerate receipt of payment on customers’ receivables. The following is a summary of the Company’s accounts receivable discount programs:
|  | Nine Months Ended December 31, |
|  | 2018 |  |  | 2017 |
Receivables discounted |  | $ | 287,206,000 |  |  | $ | 263,833,000 |
Weighted average days |  |  | 340 |  |  |  | 341 |
Annualized weighted average discount rate |  |  | 4.2 | % |  |  | 3.2 | %
Amount of discount as interest expense |  | $ | 11,377,000 |  |  | $ | 7,854,000 |

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

X
- Definition Describes the nature of the entity's non-recourse receivable discount programs with its customers and their respective banks. + References No definition available. + Details
Name: | mpaa_AccountsReceivableDiscountProgramsTextBlock
Namespace Prefix: | mpaa_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration