Income Taxes - Uncertain Income Tax Positions - Narrative (Detail) - USD ($) $ in Millions	Oct. 29, 2023	Apr. 30, 2023	Oct. 30, 2022
Income Taxes [Line Items]
Unrecognized tax benefits	$ 1.2
Unrecognized tax benefits that would favorably impact effective income tax rate if recognized	1.2	$ 1.2	$ 1.1
Income Taxes Payable - Long-Term [Member]
Income Taxes [Line Items]
Unrecognized tax benefits	$ 1.2	$ 1.2	$ 1.1

Amount of unrecognized tax benefits.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-15A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 10B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482525/740-10-45-10B

Name:	us-gaap_UnrecognizedTaxBenefits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant