Fair Value (Summary Of Changes In Fair Market Value Of Company's Level 3 Liabilities) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 0	$ 9,800,000	$ 0	$ 9,700,000
Valuation Adjustments	0	(1,500,000)	0	(1,100,000)
Payments	0	(8,300,000)	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