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Assets Held for Sale (Detail) - USD ($)
$ in Thousands
Jul. 15, 2017
Dec. 31, 2016
Long Lived Assets Held For Sale [Line Items]    
Total assets held for sale $ 26,028 $ 36,976
Distributor Territories    
Long Lived Assets Held For Sale [Line Items]    
Total assets held for sale 24,745 31,897
Property, Plant and Equipment    
Long Lived Assets Held For Sale [Line Items]    
Total assets held for sale $ 1,283 $ 5,079