Schedule II Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2022	Apr. 24, 2021	Apr. 25, 2020
Allowance for doubtful accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 6,138	$ 5,123	$ 6,772
Charged to Costs and Expenses	2,769	2,559	2,008
Charged to Other Accounts	0	0	0
Deductions	2,994	1,544	3,657
Balance at End of Period	5,913	6,138	5,123
LIFO inventory adjustment
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	120,775	99,726	91,342
Charged to Costs and Expenses	10,184	21,049	8,384
Charged to Other Accounts	0	0	0
Deductions	0	0	0
Balance at End of Period	130,959	120,775	99,726
Inventory obsolescence reserve
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	29,629	25,526	10,099
Charged to Costs and Expenses	61,647	45,761	27,405
Charged to Other Accounts	0	0	0
Deductions	69,733	41,658	11,978
Balance at End of Period	21,543	29,629	25,526
Total inventory reserve
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	150,404	125,252	101,441
Charged to Costs and Expenses	71,831	66,810	35,789
Charged to Other Accounts	0	0	0
Deductions	69,733	41,658	11,978
Balance at End of Period	$ 152,502	$ 150,404	$ 125,252