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Interest Rate Swaps in Effect (Details) $ in Millions	Sep. 30, 2017 USD ($)
Debt Disclosure [Line Items]
Fixed Interest Rate	1.30%
Derivative, Notional Amount	$ 324.0

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- Definition

Debt Disclosure [Line Items]

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No definition available.

+ Details

Name:	midd_DebtDisclosureLineItems
Namespace Prefix:	midd_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

Derivative Fixed Interest Rate, NonCurrent

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No definition available.

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Name:	midd_DerivativeFixedInterestRateNonCurrent
Namespace Prefix:	midd_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

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- Definition

Derivative Notional Amount, NonCurrent

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No definition available.

+ Details

Name:	midd_DerivativeNotionalAmountNonCurrent
Namespace Prefix:	midd_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant