Costs Associated With Exit And Restructuring Activities (Liabilities And Expenses Related To Exit And Restructuring Activities) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Restructuring Cost and Reserve [Line Items]
Balance at beginning of period			$ 1,048	$ 1,301
Charged to earnings	0	66	0	1,952
Cash paid			(380)	(1,696)
Balance at the end of period	$ 668	$ 1,557	$ 668	$ 1,557