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Summary of Significant Accounting Policies (Details) - USD ($) | 12 Months Ended
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Apr. 30, 2023 | Apr. 30, 2022 | Apr. 30, 2021
Summary Of Significant Accounting Policies [Line Items] |  |  |
Advertising costs | $ 34,600,000 | $ 32,600,000 | $ 34,100,000
Impairment of long-lived assets | 0 | 0 | 0
Impairment of goodwill | 0 | 0 | 0
Impairment of intangible assets | $ 0 | 0 | 0
Maximum [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Intangible assets, useful life | 6 years |  |
Buildings And Improvements [Member] | Minimum [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment useful lives | 15 years |  |
Buildings And Improvements [Member] | Maximum [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment useful lives | 30 years |  |
Machinery And Equipment [Member] | Minimum [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment useful lives | 3 years |  |
Machinery And Equipment [Member] | Maximum [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment useful lives | 12 years |  |
Promotional Display [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Amortization | $ 8,000,000 | $ 10,000,000 | $ 10,000,000
Promotional Display [Member] | Minimum [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment useful lives | 24 months |  |
Promotional Display [Member] | Maximum [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Property, plant and equipment useful lives | 60 months |  |

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- Definition The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 720 -SubTopic 35 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483406/720-35-50-1 + Details
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