Employee Benefit Plans (Summary Of The Fair Value Of Pension Plan Assets) (Details) (USD $)	Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Defined Benefit Plan Disclosure [Line Items]
Global insurance assets	$ 3,557,000	$ 2,339,000	$ 1,488,000
Global insurance assets
Defined Benefit Plan Disclosure [Line Items]
Global insurance assets	3,557,000
Global insurance assets | Quoted Prices In Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Global insurance assets	0
Global insurance assets | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Global insurance assets	0
Global insurance assets | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Global insurance assets	$ 3,557,000	$ 2,339,000