Segment Information - Summary of Net Sales and Operating Income by Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Segment Reporting Information [Line Items]
Net sales	$ 402,729	$ 394,495
Operating income (expenses)	60,691	43,810
Operating Segment [Member] | Foodservice [Member]
Segment Reporting Information [Line Items]
Net sales	217,406	216,040
Operating income (expenses)	40,992	37,448
Operating Segment [Member] | Retail [Member]
Segment Reporting Information [Line Items]
Net sales	107,531	105,899
Operating income (expenses)	10,987	9,104
Operating Segment [Member] | Convenience [Member]
Segment Reporting Information [Line Items]
Net sales	53,827	53,023
Operating income (expenses)	10,074	8,750
Operating Segment [Member] | Industrial [Member]
Segment Reporting Information [Line Items]
Net sales	23,965	19,533
Operating income (expenses)	1,704	513
Unallocated Corporate Expenses, Net [Member]
Segment Reporting Information [Line Items]
Operating income (expenses)	$ (3,066)	$ (12,005)