Schedule of Intangible Assets Subject to Amortization (Detail) (Lepage Bakeries Inc, USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jul. 13, 2013
Finite-Lived Intangible Assets [Line Items]
Amount	$ 71,400
Weighted average amortization years	24 years 3 months 18 days
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Amount	69,000
Weighted average amortization years	25 years
Noncompete Agreements
Finite-Lived Intangible Assets [Line Items]
Amount	$ 2,400
Weighted average amortization years	4 years