Employee Benefit Plans (Components Of Net Periodic Benefit Cost) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011
Employee Benefit Plans [Abstract]
Service cost	$ 12	$ 13	$ 37	$ 38
Interest cost	561	554	1,681	1,662
Expected return on plan assets	(578)	(559)	(1,732)	(1,678)
Amortization of unrecognized loss	287	238	863	716
Amortization of prior service cost	3	3	9	9
Net Periodic Benefit Cost	$ 285	$ 249	$ 858	$ 747