Balance Sheet Components - Property, Plant and Equipment (Details) - USD ($) $ in Millions	Oct. 29, 2022	Apr. 30, 2022
Property Plant And Equipment [Line Items]
Total property, plant and equipment, gross	$ 516.1	$ 521.5
Less: accumulated depreciation	(326.5)	(324.5)
Property, plant and equipment, net	189.6	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	83.9	89.2
Machinery and Equipment
Property Plant And Equipment [Line Items]
Total property, plant and equipment, gross	397.0	407.5
Construction In Progress
Property Plant And Equipment [Line Items]
Total property, plant and equipment, gross	$ 32.3	$ 21.5