Segment Information - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 24, 2011	Jun. 25, 2011	Mar. 26, 2011	Dec. 29, 2012 Customer Segment	Dec. 31, 2011 Customer	Dec. 25, 2010 Customer
Segment Reporting Information [Line Items]
External revenue	$ 691,256	$ 717,168	$ 735,973	$ 649,023	$ 717,522	$ 684,013	$ 675,561	$ 571,986	$ 2,793,420	$ 2,649,082	$ 2,400,170
Number of segments									2
Number of customers accounting for 10 percent or more of total revenue									0	0	0
No single customer accounted for benchmark percentage to be considered major customer									10.00%	10.00%	10.00%