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Benefit Plans - Narrative (Detail) - USD ($)	12 Months Ended
	Apr. 27, 2025	Apr. 28, 2024	Apr. 30, 2023
Retirement Benefits [Abstract]
Contributions to defined contribution plans	$ 1,100,000	$ 1,200,000	$ 1,200,000
Contributions to nonqualified deferred compensation plan	206,000	229,000	$ 215,000
Deferred compensation	7,000,000	7,800,000
Long-term investments - rabbi trust	$ 7,000,000	$ 8,000,000

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Available for sale securities debt and equity securities.

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Amount of contributions made by employer into fund established for purposes of making future disbursement to individual in accordance with deferred compensation arrangement.

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Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

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Amount of discretionary contributions made by an employer to a defined contribution plan.

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