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v2.4.1.9

Stock Ownership (Summary of the changes in the number of shares of common stock, Class C preferred stock and treasury stock) (Details) | 12 Months Ended |
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Mar. 28, 2015 | Mar. 29, 2014 | Mar. 30, 2013 | Mar. 31, 2012
Treasury Stock |  |  |  |
Summary of the changes in the number of shares of common stock, Class C preferred stock and treasury stock |  |  |  |
Shares Issued, Beginning balance | 6,076,951 us-gaap_SharesIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember | 6,073,836 us-gaap_SharesIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember | 5,967,991 us-gaap_SharesIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |
Stock options exercised | 103,538 mnro_StockIssuedDuringPeriodSharesStockOptionsExercisedPreStockSplit / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember | 3,115 mnro_StockIssuedDuringPeriodSharesStockOptionsExercisedPreStockSplit / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember | 105,845 mnro_StockIssuedDuringPeriodSharesStockOptionsExercisedPreStockSplit / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |
Shares Issued, Ending balance | 6,180,489 us-gaap_SharesIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember | 6,076,951 us-gaap_SharesIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember | 6,073,836 us-gaap_SharesIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |
Common Stock |  |  |  |
Summary of the changes in the number of shares of common stock, Class C preferred stock and treasury stock |  |  |  |
Shares Issued, Beginning balance | 37,567,902 us-gaap_SharesIssued / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember | 37,327,967 us-gaap_SharesIssued / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember | 36,855,258 us-gaap_SharesIssued / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember |
Stock options exercised | 439,635 mnro_StockIssuedDuringPeriodSharesStockOptionsExercisedPreStockSplit / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember | 239,935 mnro_StockIssuedDuringPeriodSharesStockOptionsExercisedPreStockSplit / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember | 472,709 mnro_StockIssuedDuringPeriodSharesStockOptionsExercisedPreStockSplit / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember |
Shares Issued, Ending balance | 38,007,537 us-gaap_SharesIssued / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember | 37,567,902 us-gaap_SharesIssued / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember | 37,327,967 us-gaap_SharesIssued / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember |
Class C Convertible Preferred Stock [Member] |  |  |  |
Summary of the changes in the number of shares of common stock, Class C preferred stock and treasury stock |  |  |  |
Shares Issued, Beginning balance |  |  |  | 32,500 us-gaap_SharesIssued / us-gaap_StatementClassOfStockAxis = mnro_ConvertibleClassOtherPreferredStockMember
Shares Issued, Ending balance | 32,500 us-gaap_SharesIssued / us-gaap_StatementClassOfStockAxis = mnro_ConvertibleClassOtherPreferredStockMember | 32,500 us-gaap_SharesIssued / us-gaap_StatementClassOfStockAxis = mnro_ConvertibleClassOtherPreferredStockMember | 32,500 us-gaap_SharesIssued / us-gaap_StatementClassOfStockAxis = mnro_ConvertibleClassOtherPreferredStockMember | 32,500 us-gaap_SharesIssued / us-gaap_StatementClassOfStockAxis = mnro_ConvertibleClassOtherPreferredStockMember

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- Definition Number of share options (or share units) exercised during the current period prior to the stock split. + References No definition available. + Details
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Namespace Prefix: | mnro_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury. + References Reference 1: 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 + Details
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Namespace Prefix: | us-gaap_
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- Details
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- Details
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- Details
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Period Type: |

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- Details
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