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Derivative Financial Instruments (Details) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2015 USD ($) | Dec. 31, 2015 EUR (€) | Dec. 31, 2014 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Unrealized translation gain on net investment hedge included in accumulated other comprehensive (loss) income, net of taxes | $ 10.0 |  | $ (24.5)
Euro-denominated notes |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Unrealized translation gain on net investment hedge included in accumulated other comprehensive (loss) income, net of taxes | 14.1 |  |
Designated as economic hedges | Forward contracts |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Unrealized translation gain on net investment hedge included in accumulated other comprehensive (loss) income, net of taxes | (4.1) |  |
Not designated as hedges | Forward contracts |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Gain associated with forward contracts included in interest and other expenses | 0.6 |  |
€400 due September 2022 | Designated as economic hedges | Euro-denominated notes |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Principal amount | 431.0 | € 400,000,000 |
€350 due June 2018 | Designated as economic hedges | Euro-denominated notes |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Principal amount | $ 379.2 | € 350,000,000.0 |

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- Definition Cumulative adjustment resulting from gains and losses on foreign currency derivatives that are designated as, and are effective as, hedges of a net investment in a foreign entity, commencing as of the designation date. Adjustment reported in equity as part of accumulated other comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -Subparagraph (b),(c) -URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32211-110900 + Details
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