Income Taxes Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 29, 2014
Income Tax Holiday [Line Items]
Effective Income Tax Rate Reconciliation, Percent	12.70%	150.20%
Operating Loss Carryforwards	$ 42.2us-gaap_OperatingLossCarryforwards
Deferred Tax Liabilities, Net	12.4us-gaap_DeferredTaxLiabilities
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	20.7
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	2.8
Other Noncurrent Liabilities [Member]
Income Tax Holiday [Line Items]
Unrecognized Tax Benefits	20.7
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	9.5
Minimum [Member] \| Other Noncurrent Liabilities [Member]
Income Tax Holiday [Line Items]
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	1.6
French Subsidiary [Member]
Income Tax Holiday [Line Items]
Valuation allowance released	$ 1.9

Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, before jurisdictional netting.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date.

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Amount of valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from tax credit carryforwards for which it is more likely than not that a tax benefit will not be realized.

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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