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Other (Income) Expense, Net (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Nov. 30, 2021
Nov. 30, 2020
Nov. 30, 2021
Nov. 30, 2020
Other Income and Expenses [Abstract]        
Pension non-service (credits)/costs $ (2,646) $ 3,370 $ (5,369) $ 6,706
Other (274) (237) (890) (455)
Other (income) expense, net $ (2,920) $ 3,133 $ (6,259) $ 6,251