Employee Benefits - Total Costs Associated with Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 27, 2024	Apr. 29, 2023	Apr. 30, 2022
401(k) Retirement Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Labor and related expense	$ 14,698	$ 12,877	$ 11,763
Performance Compensation Retirement Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Labor and related expense	(133)	160	1,654
Deferred Compensation Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Labor and related expense	(86)	202	242
Non-Qualified Defined Benefit Retirement Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Labor and related expense	$ 737	$ 748	$ 763