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Balance Sheet Components - Property, Plant and Equipment (Details) - USD ($)
$ in Millions
Jan. 28, 2023
Apr. 30, 2022
Property Plant And Equipment [Line Items]    
Total property, plant and equipment, gross $ 544.3 $ 521.5
Less: accumulated depreciation (343.6) (324.5)
Property, plant and equipment, net 200.7 197.0
Land    
Property Plant And Equipment [Line Items]    
Total property, plant and equipment, gross 2.9 3.3
Buildings and Building Improvements    
Property Plant And Equipment [Line Items]    
Total property, plant and equipment, gross 93.1 89.2
Machinery and Equipment    
Property Plant And Equipment [Line Items]    
Total property, plant and equipment, gross 415.4 407.5
Construction In Progress    
Property Plant And Equipment [Line Items]    
Total property, plant and equipment, gross $ 32.9 $ 21.5