Derivative Financial Instruments - Fair Value of Derivative Instruments Included in Condensed Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands	Jul. 31, 2021	Apr. 24, 2021
Derivatives, Fair Value [Line Items]
Interest rate contracts, assets, fair value	$ 1,529	$ 2,120
Interest rate contracts, liabilities, fair value	9,649	11,571
Interest rate contracts | Prepaid Expenses and Other Current Assets
Derivatives, Fair Value [Line Items]
Interest rate contracts, assets, fair value	208	0
Interest rate contracts | Other Noncurrent Assets
Derivatives, Fair Value [Line Items]
Interest rate contracts, assets, fair value	1,321	2,120
Interest rate contracts | Other Accrued Liabilities
Derivatives, Fair Value [Line Items]
Interest rate contracts, liabilities, fair value	3,408	3,776
Interest rate contracts | Other Noncurrent Liabilities
Derivatives, Fair Value [Line Items]
Interest rate contracts, liabilities, fair value	$ 6,241	$ 7,795