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Fair Value - Narrative (Detail) - USD ($)	Jan. 29, 2023	May 01, 2022		Jan. 30, 2022
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Short-term investments - available for sale				$ 438,000
Amortized cost of held-to-maturity investments				10,000,000.0
Fair value of held-to-maturity investments				9,800,000
Investments (Rabbi Trust) - available for sale	$ 10,100,000	$ 9,400,000		9,200,000
Long-term investments (Rabbi Trust) - available for sale	7,725,000	9,357,000	[1]	9,223,000
Long-term investments (Rabbi Trust) - available for sale	7,700,000	9,400,000		9,200,000
Short-term investments (Rabbi Trust) - available for sale	2,420,000
Fair value of right of use assets held for sale	2,000,000.0
Short-term Investments [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Accumulated unrealized loss on investments				2,000
Investments (Rabbi Trust) [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Accumulated unrealized gain (loss) on investments	$ 21,000	$ 32,000		$ 90,000
[1] Derived from audited financial statements.

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