Derivative Financial Instruments - Fair Value of Interest Rate Contracts Included in Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Apr. 24, 2021	Apr. 25, 2020
Derivatives, Fair Value [Line Items]
Interest rate contracts, assets, fair value	$ 2,120	$ 204
Interest rate, liabilities, fair value	11,571	19,849
Interest rate contracts
Derivatives, Fair Value [Line Items]
Interest rate, liabilities, fair value	11,571	19,849
Other non-current assets | Interest rate contracts
Derivatives, Fair Value [Line Items]
Interest rate contracts, assets, fair value	2,120	204
Other accrued liabilities | Interest rate contracts
Derivatives, Fair Value [Line Items]
Interest rate, liabilities, fair value	3,776	6,789
Other non-current liabilities | Interest rate contracts
Derivatives, Fair Value [Line Items]
Interest rate, liabilities, fair value	$ 7,795	$ 13,060