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Amounts in Accumulated Other Comprehensive Income (Loss) that have not yet been Recognized in Net Periodic Pension Cost, but will be Recognized in Consolidated Statements of Income (Detail) $ in Thousands | 12 Months Ended
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May 31, 2017 USD ($)
Pension Benefits, U.S. Plans |
Schedule of Pension Amounts in Accumulated Other Comprehensive Income (Loss) [Line Items] |
Net actuarial loss | $ (14,325)
Prior service (cost) credit | (117)
Pension Benefits, Non-U.S. Plans |
Schedule of Pension Amounts in Accumulated Other Comprehensive Income (Loss) [Line Items] |
Net actuarial loss | (1,675)
Prior service (cost) credit | $ 25

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