Goodwill and Intangible Assets Amortization Expense (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 29, 2012	Dec. 31, 2011
Estimated amortization expense of finite-lived intangible assets
2013	$ 43.5
2014	41.0
2015	41.0
2016	15.3
2017	11.8
Amortization expense of intangible assets	$ 48.0	$ 42.4	$ 40.1