Costs Associated With Exit Or Disposal Activities (Liabilities And Expenses Related To Exit Activities) (Details) (USD $) In Thousands	9 Months Ended
	Oct. 01, 2011	Oct. 02, 2010
Costs Associated With Exit Or Disposal Activities [Abstract]
Balance at beginning of period	$ 1,301	$ 3,038
Charged to earnings	2,090	2,232
Cash paid	(2,086)	(3,999)
Balance at the end of period	$ 1,305	$ 1,271