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Employee Benefits - Further Information Related to Plans (Details) - USD ($)
$ in Thousands
12 Months Ended
Apr. 27, 2024
Apr. 29, 2023
Apr. 30, 2022
Non-Qualified Defined Benefit Retirement Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Discount rate used to determine obligation 5.50% 5.30%  
Actuarial loss recognized in AOCI $ 124 $ 193 $ 306
Benefit payments 1,041 1,091 $ 1,182
Other current liabilities | Performance Compensation Retirement Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Plan obligation included in liabilities 2,341 2,103  
Other current liabilities | Non-Qualified Defined Benefit Retirement Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Plan obligation included in liabilities 996 1,053  
Other long-term liabilities | Performance Compensation Retirement Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Plan obligation included in liabilities 9,021 11,895  
Other long-term liabilities | Executive Deferred Compensation Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Plan obligation included in other long-term liabilities 21,157 21,689  
Other long-term liabilities | Non-Qualified Defined Benefit Retirement Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Plan obligation included in liabilities 10,246 11,053  
Other long-term assets | Executive Deferred Compensation Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Cash surrender value on life insurance contracts included in other long-term assets 43,398 $ 40,723  
Minimum | Non-Qualified Defined Benefit Retirement Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Annual benefit payments for the next 10 years 900    
Maximum | Non-Qualified Defined Benefit Retirement Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Annual benefit payments for the next 10 years $ 1,000