Restructuring and Asset Impairment Charges - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 27, 2024	Apr. 29, 2023	Apr. 30, 2022
Restructuring Cost And Reserve [Line Items]
Asset impairment charges	$ 2.3	$ 0.7	$ 3.1
Expected additional restructuring costs	0.7	$ 0.0
Dabir Surfaces Business
Restructuring Cost And Reserve [Line Items]
Asset impairment charges	0.6
Selling and Administrative Expenses [Member]
Restructuring Cost And Reserve [Line Items]
Severance costs	$ 0.5