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Employee Retirement Plans Additional Information (Details) | 3 Months Ended
--- | ---
Mar. 30, 2013 plan
Defined Benefit Plan Disclosure [Line Items] |
Number of defined contribution 401K savings plans | 2

X
- Definition Number of Plans + References No definition available. + Details
Name: | midd_NumberOfPlans
Namespace Prefix: | midd_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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