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Financing Arrangements - Additional Information (Details) (USD $)
12 Months Ended
Jan. 03, 2015
Dec. 28, 2013
Debt Instrument [Line Items]    
Maximum borrowing capacity $ 1,000,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity  
Senior secured revolving credit line 587,500,000us-gaap_LineOfCreditFacilityAmountOutstanding 568,600,000us-gaap_LineOfCreditFacilityAmountOutstanding
Letters of credit outstanding 11,300,000us-gaap_LettersOfCreditOutstandingAmount  
Remaining borrowing capacity 401,200,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity  
Credit facility, average interest rate 1.42%midd_LineOfCreditAverageInterestRate  
Variable commitment fee 0.25%us-gaap_LineOfCreditFacilityCommitmentFeePercentage  
Carrying Value 598,167,000us-gaap_DebtInstrumentCarryingAmount 571,598,000us-gaap_DebtInstrumentCarryingAmount
Credit facility, additional interest rate above LIBOR 1.25%midd_DebtInstrumentInterestAdditionalInterestAboveLiborRate  
Ratio of indebtedness to net capital 0us-gaap_RatioOfIndebtednessToNetCapital1  
Fixed charge coverage ratio 0midd_FixedChargeCoverageRatio  
Houno A/S [Member]    
Debt Instrument [Line Items]    
Maximum borrowing capacity 3,400,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_BusinessAcquisitionAxis
= midd_HounoAsMember
 
Long-term line of credit 2,200,000us-gaap_LineOfCredit
/ us-gaap_BusinessAcquisitionAxis
= midd_HounoAsMember
 
Carrying Value 1,200,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_BusinessAcquisitionAxis
= midd_HounoAsMember
 
Credit facility, additional interest rate above LIBOR 1.25%midd_DebtInstrumentInterestAdditionalInterestAboveLiborRate
/ us-gaap_BusinessAcquisitionAxis
= midd_HounoAsMember
 
Interest rate at period end 3.05%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_BusinessAcquisitionAxis
= midd_HounoAsMember
 
Maturity date 2022  
Interest rate at end of period, debt 4.55%us-gaap_DebtInstrumentInterestRateAtPeriodEnd
/ us-gaap_BusinessAcquisitionAxis
= midd_HounoAsMember
 
Acquisition of Giga [Member]    
Debt Instrument [Line Items]    
Maximum borrowing capacity 600,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_BusinessAcquisitionAxis
= midd_GigaGrandiCucineSrlMember
 
Credit facility, average interest rate 3.36%midd_LineOfCreditAverageInterestRate
/ us-gaap_BusinessAcquisitionAxis
= midd_GigaGrandiCucineSrlMember
 
Celfrost [Member]    
Debt Instrument [Line Items]    
Maximum borrowing capacity 2,700,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_BusinessAcquisitionAxis
= midd_CelfrostMember
 
Line of Credit Facility, Interest Rate Description 0.0125  
Credit facility, average interest rate 10.75%midd_LineOfCreditAverageInterestRate
/ us-gaap_BusinessAcquisitionAxis
= midd_CelfrostMember
 
Cozzini Inc [Member]    
Debt Instrument [Line Items]    
Maximum borrowing capacity $ 3,700,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_BusinessAcquisitionAxis
= midd_CozziniIncMember
 
Line of Credit Facility, Interest Rate Description 0.015  
Credit facility, average interest rate 11.57%midd_LineOfCreditAverageInterestRate
/ us-gaap_BusinessAcquisitionAxis
= midd_CozziniIncMember