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Reconciliation of Income Tax Rate (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Amount [Abstract] |  |  |
Tax provision at U.S. statutory rate | $ 44.7 | $ 52.4 | $ 42.1
Foreign income tax rate differential | 8.2 | (1.4) | (0.3)
Tax benefits of foreign legal structure | (0.9) | (1.1) | (2.2)
Foreign tax incentives |  | 0 | (12.7)
Adjustments to valuation allowances | 1.2 | 0 | 5.9
French business tax classified as income tax | 2.2 | 2.4 | 2.6
Other foreign taxes, net | (0.5) | (0.8) | (2.3)
Other, net | (1.9) | (2.0) | (0.3)
Provision for income taxes | 53.0 | 49.5 | 32.8
Percent [Abstract] |  |  |
Tax provision at U.S. statutory rate | 35.00% | 35.00% | 35.00%
Foreign income tax rate differential | 6.40% | (2.10%) | (0.20%)
Tax benefits of foreign legal structure | (0.70%) | (0.70%) | (1.80%)
Foreign tax incentives |  | 0.00% | (10.60%)
Adjustments to valuation allowances | 0.90% | 0.00% | 4.90%
French business tax classified as income tax | 1.70% | 1.60% | 2.20%
Other foreign taxes, net | (0.40%) | 0.70% | (1.90%)
Other, net | (1.40%) | (1.40%) | (0.30%)
Provision for income taxes | 41.50% | 33.10% | 27.30%
Poland Tax Credit Carryforwards [Member] |  |  |
Percent [Abstract] |  |  |
Increase in valuation allowance | 1.1 |  |
Brazil [Member] |  |  |
Amount [Abstract] |  |  |
Adjustments to valuation allowances |  |  | 5.9
Poland Tax Credit [Member] |  |  |
Amount [Abstract] |  |  |
Foreign tax incentives |  |  | $ (12.7)

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