Fair Value Measurement (Schedule Of Financial Assets And Liabilities Measured At Fair Value On Recurring Basis) (Details) (Fair Value, Inputs, Level 2 [Member], USD $) In Thousands, unless otherwise specified	Dec. 30, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation plan liabilities	$ (12,979)	$ (11,022)
Life Insurance Policies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation plan investments	$ 12,760	$ 10,754