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Organization, Basis of Presentation, and Summary of Significant Accounting Policies Tender Offer (Details) (USD $) In Millions, except Share data in Thousands, unless otherwise specified | 0 Months Ended |
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Apr. 15, 2015 | Mar. 13, 2015
Common Stock [Member] |  |
Class of Stock [Line Items] |  |
Stock Repurchase Program, Authorized Amount |  | $ 70,000 us-gaap_StockRepurchaseProgramAuthorizedAmount1 / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember
Minimum [Member] |  |
Class of Stock [Line Items] |  |
stock repurchase per share |  | $ 21.00 mbuu_Stockrepurchasepershare / us-gaap_RangeAxis = us-gaap_MinimumMember
Maximum [Member] |  |
Class of Stock [Line Items] |  |
stock repurchase per share |  | $ 23.50 mbuu_Stockrepurchasepershare / us-gaap_RangeAxis = us-gaap_MaximumMember
Subsequent Event [Member] | Common Stock [Member] |  |
Class of Stock [Line Items] |  |
Stock Repurchased During Period, Shares | 3,333 us-gaap_StockRepurchasedDuringPeriodShares / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
stock repurchase per share | $ 21.00 mbuu_Stockrepurchasepershare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |

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- Definition stock repurchase per share + References No definition available. + Details
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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- Definition Amount of stock repurchase plan authorized. + References No definition available. + Details
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- Details
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- Details
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