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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