Assets Held for Sale (Detail) - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017
Long Lived Assets Held For Sale [Line Items]
Total assets held for sale	$ 6,606	$ 15,323
Distribution Rights
Long Lived Assets Held For Sale [Line Items]
Total assets held for sale	3,188	13,584
Acquired Hostess Bread Assets Plants and Depots
Long Lived Assets Held For Sale [Line Items]
Total assets held for sale	2,360	479
Other
Long Lived Assets Held For Sale [Line Items]
Total assets held for sale	$ 1,058	$ 1,260