Distribution Agreements, Net - Other Identifiable Intangible Assets Net (Detail) - Distribution Agreements [Member] - USD ($) $ in Thousands	Dec. 30, 2018	Dec. 31, 2017	Jan. 01, 2017
Finite Lived Intangible Assets [Line Items]
Distribution agreements at cost	$ 950,559	$ 939,527
Less: Accumulated amortization	50,176	26,175
Total other identifiable intangible assets, net	$ 900,383	$ 913,352	$ 234,988