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OTHER FINANCIAL INFORMATION - Components of Inventories (Detail) - USD ($)
$ in Millions
Jan. 03, 2020
Sep. 27, 2019
Other Financial Information [Abstract]    
Raw materials and parts $ 399.8 $ 376.5
Work-in-process 75.6 71.8
Finished goods 122.0 103.2
Total inventories $ 597.4 $ 551.5