Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	May 31, 2022	May 31, 2021
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, at cost	$ 2,132,915	$ 1,967,482
Less: allowance for depreciation and amortization	1,028,932	1,002,300
Property, plant and equipment, net	1,103,983	965,182
Land
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, at cost	88,137	93,455
Building And Leasehold Improvements
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, at cost	519,391	518,205
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, at cost	$ 1,525,387	$ 1,355,822