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Commitments and Contingencies (Details) $ in Millions | 9 Months Ended
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Oct. 01, 2016 USD ($)
Commitments and Contingencies [Abstract] |
Term of guarantees | 1 year
Payments required to be made under guarantees, maximum | $ 7.0

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- Definition Represents the term of guarantees. + References No definition available. + Details
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Namespace Prefix: | mli_
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Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
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