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Subsequent Event (Details) (USD $) In Millions, unless otherwise specified | Sep. 29, 2012 | Oct. 31, 2012 Acquisition [Member]
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Subsequent Event [Line Items] |  |
MiddBusinessAcquisitionEstimatedRevenues |  | $ 20
Line Of Credit Average Interest Rate | 1.82% |
Ratio of Indebtedness to Net Capital | 3.5 |
Fixed Charge Coverage Ratio | 1.25 |
Percentage Of Indebtedness To Net Capital | 65.00% |

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- Definition Fixed Charge Coverage Ratio + References No definition available. + Details
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Namespace Prefix: | midd_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

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- Definition Line of Credit, Average Interest Rate + References No definition available. + Details
Name: | midd_LineOfCreditAverageInterestRate
Namespace Prefix: | midd_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition MiddBusinessAcquisitionEstimatedRevenues + References No definition available. + Details
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Namespace Prefix: | midd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

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- Definition Percentage of Indebtedness to Net Capital + References No definition available. + Details
Name: | midd_PercentageOfIndebtednessToNetCapital
Namespace Prefix: | midd_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Total Aggregate Indebtedness divided by Net Capital. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Rule 15c3 -Number 240 -Article 15c3 -Section 1 -Subsection a -Paragraph 1 -Subparagraph i + Details
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- Details
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