Fair Value (Summary Of Changes In Fair Market Value Of Company's Level 3 Liabilities) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 0	$ 0	$ 0	$ 9,700,000
Valuation adjustments	0	0	0	(1,100,000)
Payments	0	0	0	(8,600,000)
Ending Balance	0	$ 0	0	$ 0
Level 3
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Liabilities	$ 0		$ 0