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COMMITMENTS AND CONTINGENCIES - Dealer Floor Plan Financing (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
COMMITMENTS AND CONTINGENCIES |  |
Repurchases of inventory |  | $ 3.4
Redistributed amounts |  | 3.1
Net realizable value of repurchased inventory |  | 0.3
Costs associated with repurchases |  | $ 0.1
Total purchase obligation | $ 13.2 |
Floor plan lender one |  |
COMMITMENTS AND CONTINGENCIES |  |
Liability related to repurchase remains outstanding | $ 0.0 |
Repurchase limit in percentage of amount of average net receivables | 16.00% |
Total purchase obligation | $ 9.7 |
Additional floor plan lenders |  |
COMMITMENTS AND CONTINGENCIES |  |
Total purchase obligation | $ 3.5 |

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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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- Definition This element represents the percentage of the average net receivables which is used to calculate the contractual repurchase limit. + References No definition available. + Details
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- Definition The amount of liability related to repurchase outstanding. + References No definition available. + Details
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- Definition Costs associated with repurchases under repurchase obligations. + References No definition available. + Details
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- Definition Redistributed amounts under repurchase obligations. + References No definition available. + Details
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- Definition Amount of repurchases of inventory under contractual agreements. + References No definition available. + Details
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Namespace Prefix: | mpx_
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- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. + References No definition available. + Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Period Type: |