Pro Forma Consolidated Results of Operations (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 04, 2014	Oct. 05, 2013	Oct. 04, 2014	Oct. 05, 2013
Acquisition [Abstract]
Sales, As reported	$ 849,360	$ 878,492	$ 2,886,498	$ 2,907,455
Sales, Pro forma				2,907,455
Net income, As reported	44,599	33,888	147,729	192,374
Net income, Pro forma				$ 187,087
Basic net income per common share, As reported	$ 0.21	$ 0.16	$ 0.70	$ 0.93
Basic net income per common share, Pro forma				$ 0.90
Diluted net income per common share, As reported	$ 0.21	$ 0.16	$ 0.69	$ 0.91
Diluted net income per common share, Pro forma				$ 0.88