Acquisitions and Divestitures - Schedule of Consolidated Statement of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2016	Sep. 27, 2015	Oct. 02, 2016	Sep. 27, 2015
Business Acquisition [Line Items]
Net sales	$ 849,028	$ 618,806	$ 2,314,868	$ 1,686,742
Operating income	39,801	27,685	106,938	82,903
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | BYB Brands Inc [Member]
Business Acquisition [Line Items]
Net sales		5,055		21,789
Operating income		(215)		1,809
2015 and 2016 Acquisitions [Member]
Business Acquisition [Line Items]
Net sales	298,313	84,734	727,874	175,240
Operating income	$ 2,432	$ 1,297	$ 19,691	$ 5,733