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Stockholders' Equity - Summary of Valuation Assumptions (Detail) - $ / shares
12 Months Ended
Apr. 26, 2024
Apr. 28, 2023
Apr. 29, 2022
Restricted Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Risk-free interest rate 4.90% 3.10% 0.50%
Expected dividend yield 2.60% 2.90% 2.40%
RSUs granted, Weighted-Average Grant Date Fair Value $ 76.46 $ 59.87 $ 80.4
Employee Stock Purchase Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected term in years 1 year 2 months 12 days 1 year 2 months 12 days 1 year 2 months 12 days
Risk-free interest rate 4.90% 3.90% 0.20%
Expected volatility 30.00% 36.00% 37.00%
Expected dividend yield 2.80% 2.90% 2.40%
RSUs granted, Weighted-Average Grant Date Fair Value $ 17.37 $ 21.28 $ 24.75