Financial Instruments (Effective Portion Of Pre-Tax Gains (Losses) On Derivative Instruments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jul. 02, 2011		Jun. 30, 2012		Jul. 02, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Pre-tax gains (losses) on derivative instruments					$ (106)		$ (221)
Fair Value Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Pre-tax gains (losses) on derivative instruments	(288)	[1]	208	[1]	(106)	[1]	(221)	[1]
Cash Flow Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Effective portion recognized in other comprehensive income	64		(86)		95		175
Effective portion reclassified from other comprehensive income	$ (37)	[2]	$ (37)	[2]	$ (72)	[2]	$ (164)	[2]

[1] Included in selling, general and administrative expenses

[2] Included in interest expense