XML 31 R57.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Long-Term Debt (Details Textual 1) | 12 Months Ended
--- | ---
Mar. 31, 2012
Line of Credit Facility [Line Items] |
Interest rate over LIBOR on the facility | 1.00%
Maximum [Member] |
Line of Credit Facility [Line Items] |
Interest rate over LIBOR on the facility | 1.00%
Percentage of net income permit as cash dividend, maximum | 50.00%
Minimum [Member] |
Line of Credit Facility [Line Items] |
Interest rate over LIBOR on the facility | 0.50%

X
- Definition The maximum allowed percentage of the preceding year's net income permitted to be paid as a cash dividend. + References No definition available. + Details
Name: | mnro_LineOfCreditFacilityDividend
Namespace Prefix: | mnro_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_LineOfCreditFacilityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration