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Commitments and Contingencies - Guaranteed Portion of Debt (Detail) - USD ($)
$ in Thousands
Apr. 02, 2017
Jan. 01, 2017
Guarantee Obligations [Line Items]    
Total guaranteed portion of debt - manufacturing cooperatives $ 28,131 $ 32,574
SAC [Member]    
Guarantee Obligations [Line Items]    
Total guaranteed portion of debt - manufacturing cooperatives 17,947 23,297
Southeastern [Member]    
Guarantee Obligations [Line Items]    
Total guaranteed portion of debt - manufacturing cooperatives $ 10,184 $ 9,277