Restructuring And Other Impairment Charges (Schedule Of Restructuring And Other Impairment Charges) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 25, 2011	Sep. 30, 2012	Sep. 25, 2011
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 1,834
Impairment charges				3,061
Restructuring and other impairment charges	1,088	(173)	84	3,598
2012 Restructuring Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,107		1,978
2011 Restructuring Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(60)		(60)
2007 Arrow Integration Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 41	$ (173)	$ (1,834)	$ 537