Schedule of Identified Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Oct. 13, 2015	Sep. 12, 2015	Apr. 23, 2016	Jan. 02, 2016
Business Acquisition [Line Items]
Goodwill			$ 464,926	$ 464,926
Alpine Valley Bread Company
Business Acquisition [Line Items]
Cash consideration paid	$ 109,340
Stock consideration paid	12,602
Total consideration paid	121,942
Property, plant, and equipment	15,614
Identifiable intangible assets	64,600
Financial assets	5,687
Net recognized amounts of identifiable assets acquired	85,901
Goodwill	$ 36,041
Dave’s Killer Bread
Business Acquisition [Line Items]
Cash consideration paid		$ 282,115
Property, plant, and equipment		9,769
Identifiable intangible assets		176,300
Deferred income taxes		(60,142)
Financial assets		10,263
Net recognized amounts of identifiable assets acquired		136,190
Goodwill		$ 145,925