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Relationship between Plans Benefit Obligations and Assets (Detail) - Pension Benefits - USD ($) $ in Thousands | May 31, 2023 | May 31, 2022
--- | --- | ---
U.S. Plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Plans with projected benefit obligations in excess of plan assets, benefit obligation | $ 696,280 | $ 702,511
Plans with accumulated benefit obligations in excess of plan assets, benefit obligation | 44 | 10,542
Plans with assets in excess of projected benefit obligations | 893 | 1,224
Plans with assets in excess of accumulated benefit obligations | 598,050 | 599,891
Plans with projected benefit obligations in excess of plan assets, plan asset | 630,315 | 615,659
Plans with accumulated benefit obligations in excess of plan assets, plan asset |  | 10,024
Plans with assets in excess of projected benefit obligations, plan asset | 1,171 | 1,301
Plans with assets in excess of accumulated benefit obligations, plan asset | 631,486 | 606,936
Non-U.S. Plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Plans with projected benefit obligations in excess of plan assets, benefit obligation | 26,918 | 36,607
Plans with accumulated benefit obligations in excess of plan assets, benefit obligation | 24,837 | 32,808
Plans with assets in excess of projected benefit obligations | 131,894 | 145,927
Plans with assets in excess of accumulated benefit obligations | 123,798 | 139,333
Plans with projected benefit obligations in excess of plan assets, plan asset | 18,585 | 25,049
Plans with accumulated benefit obligations in excess of plan assets, plan asset | 17,839 | 22,844
Plans with assets in excess of projected benefit obligations, plan asset | 147,535 | 168,326
Plans with assets in excess of accumulated benefit obligations, plan asset | $ 148,281 | $ 170,531

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