Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2012	Dec. 30, 2012
Significant Accounting Policies Disclosure [Line Items]
Fiscal year duration			364 days		371 days
First quarter duration		280 days	273 days
Reduction in excess facility accrual	$ 6.8		$ (6.8)	$ 0
Minimum
Significant Accounting Policies Disclosure [Line Items]
Fiscal year duration			364 days
Maximum
Significant Accounting Policies Disclosure [Line Items]
Fiscal year duration			371 days