Commitments and Contingencies - Guaranteed Portion of Debt (Detail) - USD ($) $ in Thousands	Oct. 01, 2017	Jan. 01, 2017
Guarantee Obligations [Line Items]
Total guaranteed portion of debt - manufacturing cooperatives	$ 32,489	$ 32,574
SAC [Member]
Guarantee Obligations [Line Items]
Total guaranteed portion of debt - manufacturing cooperatives	23,938	23,297
Southeastern [Member]
Guarantee Obligations [Line Items]
Total guaranteed portion of debt - manufacturing cooperatives	$ 8,551	$ 9,277