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Related-Party Transactions - Additional Information (Detail) - Purchasing Alliance [Member] - USD ($)
$ in Millions
3 Months Ended
Sep. 28, 2019
Sep. 29, 2018
Jun. 29, 2019
Related Party Transaction [Line Items]      
Equity method investments $ 5.3   $ 4.6
Purchases from related party $ 254.2 $ 226.9