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Basis Of Presentation Basis Of Presentation (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Apr. 04, 2015
Accounting Changes and Error Corrections [Abstract]  
ErrorCorrectionAndPriorPeriodAdjustmentsOfPreviousYearsReductionInWorkingCapitalAndEarningsBeforeIncomeTax $ 8,300mog_ErrorCorrectionAndPriorPeriodAdjustmentsOfPreviousYearsReductionInWorkingCapitalAndEarningsBeforeIncomeTax
ErrorCorrectionsAndPriorPeriodAdjustmentsNotMaterialToPreviouslyReportedFinancialStatementsIn2014and2015 not material