Assets Held for Sale - Additional Information (Detail) - Acquired Hostess Bread Assets Plants and Depots	Oct. 08, 2016 Facility
Plants
Long Lived Assets Held For Sale [Line Items]
Number of Acquired Hostess Bread Assets to be sold	20
Number of long lived assets sold	10
Depots
Long Lived Assets Held For Sale [Line Items]
Number of Acquired Hostess Bread Assets to be sold	36
Number of long lived assets sold	19