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Accrued Loss Reserves (Detail) - USD ($) $ in Thousands | May 31, 2023 | May 31, 2022
--- | --- | ---
Schedule Of Accrued Liabilities [Line Items] |  |
Accrued losses | $ 26,470 | $ 24,508
Accrued Loss Reserves - Noncurrent | 32,350 | 35,935
Accrued product liability and other loss reserves |  |
Schedule Of Accrued Liabilities [Line Items] |  |
Accrued losses | 16,995 | 16,003
Accrued Loss Reserves - Noncurrent | 22,849 | 26,226
Accrued warranty reserves |  |
Schedule Of Accrued Liabilities [Line Items] |  |
Accrued losses | 8,448 | 7,450
Accrued Loss Reserves - Noncurrent | 3,328 | 3,455
Accrued environmental reserves |  |
Schedule Of Accrued Liabilities [Line Items] |  |
Accrued losses | 1,027 | 1,055
Accrued Loss Reserves - Noncurrent | $ 6,173 | $ 6,254

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- Definition Amount of loss contingency liability expected to be resolved within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 + Details
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