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Income Taxes - Reconciliation of Effective Tax Rate (Details)
12 Months Ended
Apr. 30, 2022
Apr. 24, 2021
Apr. 25, 2020
Income Tax Disclosure [Abstract]      
Statutory tax rate 21.00% 21.00% 21.00%
Increase (reduction) in income taxes resulting from:      
State income taxes, net of federal benefit 3.90% 4.30% 4.20%
Losses/(gains) on corporate owned life insurance 0.00% (1.20%) 0.50%
Change in valuation allowance 0.10% 0.70% 0.70%
U.S. research tax credits (0.20%) (0.50%) (0.60%)
Non-deductible asset impairment 0.00% 0.00% 4.90%
Fair value adjustment of contingent consideration liability (0.30%) 2.00% (1.40%)
Tax on undistributed foreign earnings 0.20% 0.00% 1.10%
Miscellaneous items 1.20% 0.00% 1.00%
Effective tax rate 25.90% 26.30% 31.40%