Executive Officers' Separation and Hiring Costs (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 29, 2014
Separation and Hiring Costs [Line Items]
Executive ocers' separation and hiring, severance liabilities	$ 1.6
Executive Officers' Separation and Hiring, Payment Completion	2016
General and Administrative Expense [Member]
Separation and Hiring Costs [Line Items]
Executive officers' separation and hiring, period costs	$ 2.0