Assets Held for Sale - Additional Information (Detail) (Acquired Hostess Bread Assets Plants and Depots, USD $) In Millions, unless otherwise specified	Apr. 25, 2015
Long Lived Assets Held-for-sale [Line Items]
Consideration received from sale of assets	$ 0.7
Bakeries
Long Lived Assets Held-for-sale [Line Items]
Number of Acquired Hostess Bread Assets to be sold	20
Depots
Long Lived Assets Held-for-sale [Line Items]
Number of Acquired Hostess Bread Assets to be sold	36