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Intangible Assets (Narrative) (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2017 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived intangible assets acquired | $ 1,254.8
Metaldyne Performance Group and USM Mexico Manufacturing LLC [Domain] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Finite-lived intangible assets acquired | $ 1,254.8

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Details
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