Income Taxes Narrative (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Income Tax Holiday [Line Items]
Effective tax rate	(51.00%)	106.30%
Deferred tax liabilities	$ 28.5
Unrecognized tax benefits that would impact effective tax rate	24.2
Unrecognized tax benefits tax positions that could reasonably change in next 12 months	4.2
Other Noncurrent Liabilities
Income Tax Holiday [Line Items]
Total unrecognized tax benefit	24.2
Income tax interest and penalties	$ 11.4