Income Taxes Income Taxes (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 28, 2014
Income Tax Holiday [Line Items]
Effective Income Tax Rate Reconciliation, Percent	19.70%	0.90%
Operating Loss Carryforwards	$ 71.8
Deferred Tax Liabilities, Net	29.5
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	18.2
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	2.7
Other Noncurrent Liabilities [Member]
Income Tax Holiday [Line Items]
Unrecognized Tax Benefits	18.2
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	8.2
Minimum [Member] | Other Noncurrent Liabilities [Member]
Income Tax Holiday [Line Items]
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	1.5
French Subsidiary [Member]
Income Tax Holiday [Line Items]
Valuation allowance released	1.9
Douner
Income Tax Holiday [Line Items]
Deferred Tax Liabilities, Net	$ 15.4