Additional Cash Flow Information - Additional Information (Detail) (USD $)	6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012
Schedule of Cash Flow, Supplemental [Line Items]
Income taxes paid	$ 28,801,000	$ 29,746,000
Interest paid	1,518,000	1,652,000
Acquired operating property by capital leases	$ 36,704,000	$ 24,052,000