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Pension, Post-Retirement and Post-Employment Plans (Details) - Major Categories of Assets in Company’s Defined Benefit Pension Plans - USD ($) $ in Millions | Dec. 31, 2015 | Dec. 31, 2014 | Oct. 31, 2013
--- | --- | --- | ---
Asset Category |  |  |  |
Balance |  | $ 158.6 | $ 142.2 | $ 0.0
Assets using NAV |  | 119.6 | 86.3 |
Defined Benefit Plan, Fair Value of Plan Assets After NAV |  | 278.2 | 228.5 |
Fair Value, Inputs, Level 1 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 70.7 | 57.9 |
Fair Value, Inputs, Level 2 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 10.7 | 1.1 |
Fair Value, Inputs, Level 3 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 77.2 | 83.2 |
Private Equity Funds, Domestic [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 26.3 | 28.9 |
Private Equity Funds, Domestic [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 26.3 | 28.9 |
Private Equity Funds, Domestic [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.0 | 0.0 |
Private Equity Funds, Domestic [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.0 | 0.0 |
Foreign Equities [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.3 |  |
Foreign Equities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.3 |  |
Foreign Equities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.0 |  |
Foreign Equities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.0 |  |
Mutual Funds Holding U.S. Treasury Securities [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 11.9 | 11.8 |
Mutual Funds Holding U.S. Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 11.9 | 11.8 |
Mutual Funds Holding U.S. Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.0 | 0.0 |
Mutual Funds Holding U.S. Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.0 | 0.0 |
Fixed Income Securities [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 16.1 |  |
Fixed Income Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 16.1 |  |
Fixed Income Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.0 |  |
Fixed Income Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.0 |  |
U.S. Treasuries & Other Fixed Income Securities [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 4.9 | 4.8 |
U.S. Treasuries & Other Fixed Income Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 4.9 | 4.8 |
U.S. Treasuries & Other Fixed Income Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.0 | 0.0 |
U.S. Treasuries & Other Fixed Income Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.0 | 0.0 |
US Treasury Securities [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 5.0 |  |
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.0 |  |
US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 5.0 |  |
US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.0 |  |
Limited Partnership Interests [Member] |  |  |  |
Asset Category |  |  |  |
Balance | [1] | 1.3 | 1.1 |
Limited Partnership Interests [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Asset Category |  |  |  |
Balance | [1] | 0.0 | 0.0 |
Limited Partnership Interests [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Asset Category |  |  |  |
Balance | [1] | 1.3 | 1.1 |
Limited Partnership Interests [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Asset Category |  |  |  |
Balance | [1] | 0.0 | 0.0 |
Insurance Buy In Policy [Member] |  |  |  |
Asset Category |  |  |  |
Balance | [2] | 77.2 | 83.2 |
Insurance Buy In Policy [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Asset Category |  |  |  |
Balance | [2] | 0.0 | 0.0 |
Insurance Buy In Policy [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Asset Category |  |  |  |
Balance | [2] | 0.0 | 0.0 |
Insurance Buy In Policy [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Asset Category |  |  |  |
Balance | [2] | 77.2 | 83.2 |
Cash and Cash Equivalents [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 11.2 | 12.4 |
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 11.2 | 12.4 |
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.0 | 0.0 |
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.0 | $ 0.0 |
Collective Investment Funds (CIFs) [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 2.9 |  |
Collective Investment Funds (CIFs) [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.0 |  |
Collective Investment Funds (CIFs) [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 2.9 |  |
Collective Investment Funds (CIFs) [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.0 |  |
Mutual Funds Holding Domestic Securities [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 1.5 |  |
Mutual Funds Holding Domestic Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 0.0 |  |
Mutual Funds Holding Domestic Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | 1.5 |  |
Mutual Funds Holding Domestic Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Asset Category |  |  |  |
Balance |  | $ 0.0 |  |
[1] | This category includes assets held in a fund with the Bank of Taiwan as prescribed by the Taiwan government in accordance with local statutory rules.
[2] | This category represents assets in the U.K Pension Plan invested in insurance contract with PIC in connection with the “Buy-In” of the U.K Pension Plan.

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- Definition Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=29635418&loc=d3e12355-114930 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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