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Restructuring Charges (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Apr. 30, 2025 | Apr. 30, 2024 | Apr. 30, 2023
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges, net | $ 4,609 | $ (198) | $ 1,525
Facility Closing |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges, net | 3,100 |  |
Facility Closing | Minimum [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Cost Incurred to Date | 1,000 |  |
Facility Closing | Maximum [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Cost Incurred to Date |  | $ 2,500 |
Employee Severance and Separation |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges, net | 2,648 |  |
Restructuring charges, tax | (200) |  |
Employee Severance and Separation | Reduction in Force |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges, net | 1,500 |  |
Employee Severance and Separation | Facility Closing |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges, net | 1,500 |  |
Accelerated Depreciation | Facility Closing |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges, net | 700 |  |
Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Exchange | Facility Closing |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges, net | 700 |  |
Facilities and Professional Fees | Facility Closing |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges, net | $ 200 |  |

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- Definition Amount of costs incurred to date for the specified restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.b.1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 + Details
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + 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://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.b.1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482047/420-10-45-3 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-1 + Details
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