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Inventories - Components of Inventories (Detail) - USD ($)
$ in Thousands
Sep. 26, 2019
Jun. 27, 2019
Sep. 27, 2018
Inventory Disclosure [Abstract]      
Raw material and supplies $ 48,989 $ 58,927 $ 55,681
Work-in-process and finished goods 107,464 98,097 125,350
Total $ 156,453 $ 157,024 $ 181,031