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Derivatives (Outstanding Contracts Not Designated as Cash Flow Hedges) (Details) - Not Designated as Hedging Instrument [Member] € in Millions, ₨ in Millions, lb in Millions, $ in Millions, $ in Millions, $ in Millions | Mar. 31, 2018 EUR (€) lb | Mar. 31, 2018 USD ($) lb | Mar. 31, 2018 CAD ($) lb | Mar. 31, 2018 MXN ($) lb | Mar. 31, 2018 INR (₨) lb | Dec. 31, 2017 EUR (€) lb | Dec. 31, 2017 USD ($) lb | Dec. 31, 2017 CAD ($) lb | Dec. 31, 2017 MXN ($) lb | Dec. 31, 2017 INR (₨) lb
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Copper Commodity Contract [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, nonmonetary notional amount (in lbs) | lb | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8
Aluminum Commodity Contract [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, nonmonetary notional amount (in lbs) | lb | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8
Foreign Exchange Forward [Member] | Chinese Yuan [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, notional amount |  | $ 97.5 |  |  |  |  | $ 73.8 |  |  |
Foreign Exchange Forward [Member] | Mexican Peso [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, notional amount |  |  |  | $ 0.0 |  |  |  |  | $ 136.6 |
Foreign Exchange Forward [Member] | Euro [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, notional amount | € | € 99.9 |  |  |  |  | € 64.4 |  |  |  |
Foreign Exchange Forward [Member] | Canadian Dollar [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, notional amount | € | 20.0 |  |  |  |  | 27.3 |  |  |  |
Foreign Exchange Forward [Member] | British Pounds [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, notional amount |  |  | $ 4.2 |  |  |  |  | $ 4.5 |  |
Foreign Exchange Forward [Member] | Singapore, Dollars [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, notional amount |  | $ 6.4 |  |  |  |  | 7.0 |  |  |
Foreign Exchange Forward [Member] | Australia Dollar [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, notional amount |  |  |  |  |  |  | $ 107.0 | $ 177.0 |  |
Foreign Exchange Forward [Member] | New Zealand Dollar [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, notional amount | € | € 9.6 |  |  |  |  | € 5.0 |  |  |  |
Foreign Exchange Forward [Member] | Indian Rupee [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, notional amount | ₨ |  |  |  |  | ₨ 0.0 |  |  |  |  | ₨ 39.8

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- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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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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