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Income Taxes - Narratives (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 USD ($) country | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Income Tax Disclosure [Abstract] |  |  |
Income tax benefit related to the CICE payroll tax credit | $ 1.5 | $ 2.8 |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |
Noncurrent deferred tax assets | 83.9 | 106.2 |
Noncurrent deferred tax liabilities | 157.4 | 46.7 |
Deferred tax asset on net operating losses | 106.5 |  |
Valuation allowance, net operating losses | 91.1 |  |
Pretax income of non-United States operations | 511.2 | 485.9 | $ 298.1
Unremitted earnings of non-United States subsidiaries that are considered to be permanently invested | 516.9 |  |
Unremitted earnings of non-United States subsidiaries that may be remitted | 604.4 |  |
Deferred tax liability, undistributed foreign earnings | 132.0 | 53.1 |
Tax benefits relating to unrecognized tax benefits | 1.0 | 1.4 |
Amount of unrecognized tax benefit that would affect the effective tax rate, if recognized | 37.9 | 29.4 |
Interest and penalties related to unrecognized tax benefits | $ 12.1 | (0.6) | $ 6.3
Number of countries and territories in which the Company operates | country | 80 |  |
Future income tax (expense) benefits | New Accounting Pronouncement, Early Adoption, Effect |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |
Current deferred tax assets |  | (52.2) |
Accrued liabilities | New Accounting Pronouncement, Early Adoption, Effect |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |
Current deferred tax liabilities |  | (20.6) |
Other assets | New Accounting Pronouncement, Early Adoption, Effect |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |
Noncurrent deferred tax assets |  | 52.2 |
Other long-term liabilities | New Accounting Pronouncement, Early Adoption, Effect |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |
Noncurrent deferred tax liabilities |  | $ 20.6 |

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