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Derivative Financial Instruments (Narrative) (Details) (USD $) In Thousands, unless otherwise specified | 6 Months Ended | 3 Months Ended
--- | --- | ---
Mar. 29, 2014 | Apr. 04, 2015 | Apr. 04, 2015
Derivative [Line Items] |  |  |
Cash Flow Hedge Ineffectiveness is Immaterial | not material |  |
Designated as Hedging Instrument [Member] |  |  |
Derivative [Line Items] |  |  |
Cash Flow Hedge Ineffectiveness is Immaterial |  | not material |
Designated as Hedging Instrument [Member] | Interest Rate Swaps [Member] |  |  |
Derivative [Line Items] |  |  |
Notional Amount, Derivative |  | 245,000 invest_DerivativeNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateSwapMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember | $ 245,000 invest_DerivativeNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateSwapMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember
Conversion Rate Of Interest Rate Swaps From Variable to Fixed |  | 2.30%mog_ConversionRateOfInterestRateSwapsFromVariableToFixed / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateSwapMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember | 2.30%mog_ConversionRateOfInterestRateSwapsFromVariableToFixed / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateSwapMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember
Basis Spread on Variable Rate |  |  | 163.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateSwapMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember
Designated as Hedging Instrument [Member] | Interest Rate Swaps [Member] | Minimum [Member] |  |  |
Derivative [Line Items] |  |  |
Maturity of Interest Rate Swaps |  | Jan. 15, 2016 |
Designated as Hedging Instrument [Member] | Interest Rate Swaps [Member] | Maximum [Member] |  |  |
Derivative [Line Items] |  |  |
Maturity of Interest Rate Swaps |  | Jun. 05, 2017 |
Designated as Hedging Instrument [Member] | Foreign Currency Forwards [Member] |  |  |
Derivative [Line Items] |  |  |
Notional Amount, Derivative |  | 60,714 invest_DerivativeNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember | 60,714 invest_DerivativeNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember
Maturity of Interest Rate Swaps |  | Dec. 29, 2016 |
Not Designated as Hedging Instrument [Member] | Foreign Currency Forwards [Member] |  |  |
Derivative [Line Items] |  |  |
Notional Amount, Derivative |  | 131,051 invest_DerivativeNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | $ 131,051 invest_DerivativeNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
Name: | invest_DerivativeNotionalAmount
Namespace Prefix: | invest_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

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- Definition Conversion rate of interest rate swaps. + References No definition available. + Details
Name: | mog_ConversionRateOfInterestRateSwapsFromVariableToFixed
Namespace Prefix: | mog_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition A disclosure of an assertion that the amount of cash flow hedge ineffectiveness is immaterial. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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

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- Definition Date the derivative contract matures, in CCYY-MM-DD format. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |