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

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- Definition Debt Disclosure [Line Items] + References No definition available. + Details
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Namespace Prefix: | midd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Derivative Fixed Interest Rate, NonCurrent + References No definition available. + Details
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Namespace Prefix: | midd_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Derivative Notional Amount, NonCurrent + References No definition available. + Details
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Balance Type: | debit
Period Type: | instant