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Distribution Agreements, Net - Other Identifiable Intangible Assets Net (Detail) - Distribution Agreements [Member] - USD ($)
$ in Thousands
Dec. 31, 2017
Jan. 01, 2017
Jan. 03, 2016
Finite Lived Intangible Assets [Line Items]      
Distribution agreements at cost $ 939,527 $ 242,486  
Less: Accumulated amortization 26,175 7,498  
Total other identifiable intangible assets, net $ 913,352 $ 234,988 $ 129,786