Employee Benefit Plans (Components Of Net Periodic Benefit Cost) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Employee Benefit Plans [Abstract]
Service cost	$ 105	$ 13	$ 117	$ 25
Interest cost	434	560	1,000	1,120
Expected return on plan assets	(807)	(577)	(1,419)	(1,154)
Amortization of unrecognized loss	571	288	900	576
Amortization of prior service cost	3	3	6	6
Net Periodic Benefit Cost	$ 306	$ 287	$ 604	$ 573