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v2.4.1.9

Related Party Transactions (Details) (USD $) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2015 item | Mar. 31, 2004 item | Mar. 28, 2015 item | Mar. 29, 2014 | Mar. 30, 2013
Related Party Transactions [Abstract] |  |  |  |  |
Related party leases assumed |  | 6 mnro_NumberOfRelatedPartyLeasesAssumed |  |  |
Related party leases assumed and acquired | 1 mnro_NumberOfRelatedPartyLeasesAssumedAcquired |  |  |  |
Related party leases assumed remaining |  |  | 5 mnro_NumberOfRelatedPartyLeasesAssumedRemaining |  |
New leases contemplated |  |  | 0 mnro_NumberOfNewLeases |  |
Purchased property and building of leased location | $ 1,000,000 us-gaap_PaymentsToAcquireOtherPropertyPlantAndEquipment |  |  |  |
Operating and capital leases |  |  | 717,000 mnro_OperatingAndCapitalLeases | 702,000 mnro_OperatingAndCapitalLeases | 685,000 mnro_OperatingAndCapitalLeases
Annual advisory fee |  |  | 300,000 mnro_RelatedPartyInvestmentAdvisoryFees | 300,000 mnro_RelatedPartyInvestmentAdvisoryFees | 300,000 mnro_RelatedPartyInvestmentAdvisoryFees
Amount payable |  |  | $ 0 us-gaap_DueToRelatedPartiesCurrentAndNoncurrent | $ 0 us-gaap_DueToRelatedPartiesCurrentAndNoncurrent |

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- Definition Number of new leases. + References No definition available. + Details
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Namespace Prefix: | mnro_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Number Of Related Party Leases Assumed + References No definition available. + Details
Name: | mnro_NumberOfRelatedPartyLeasesAssumed
Namespace Prefix: | mnro_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Number Of Related Party Leases Assumed Acquired + References No definition available. + Details
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Data Type: | xbrli:integerItemType
Balance Type: | na
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- Definition Number Of Related Party Leases Assumed Remaining + References No definition available. + Details
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Balance Type: | na
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- Definition Operating and capital lease payments made to a related party. + References No definition available. + Details
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Namespace Prefix: | mnro_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Advisory fees arising from transactions with related parties who are not affiliates or joint ventures. + References No definition available. + Details
Name: | mnro_RelatedPartyInvestmentAdvisoryFees
Namespace Prefix: | mnro_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Carrying amount as of the balance sheet date of obligations due all related parties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.17) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(3),(4)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition The cash outflow for acquisition of or capital improvements of property, plant and equipment, used to produce goods or deliver services, and not otherwise defined in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585 + Details
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- Details
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