Additional Cash Flow Information - Additional Information (Detail) - USD ($)	6 Months Ended
	Jun. 27, 2015	Jun. 28, 2014
Supplemental Cash Flow Information [Abstract]
Income taxes paid	$ 32,013,000	$ 56,425,000
Interest paid	1,521,000	1,530,000
Acquired operating property by capital leases	$ 0	$ 11,410,000