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Restructuring - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 31, 2021 | Oct. 31, 2020 | Oct. 31, 2021 | Oct. 31, 2020
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges, net | $ (3) | $ 2,791 | $ 310 | $ 6,251
Manufacturing Plant Closure |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges, net | $ 0 | 2,900 | $ 300 | 4,700
Facility Closing | Discontinued Operations, Disposed of by Sale | Humboldt Facility |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Gain (Loss) on Disposition of Business |  | 2,300 |  |
Employee Severance | Nationwide Reductions In Force |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges, net |  | $ (100) |  | $ 1,600

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- Definition Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4582445-111684 + Details
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