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FAIR VALUE (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2025	Aug. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, excluding other borrowings and finance leases	$ 1,200,000	$ 1,000,000
Assets, held-for-sale	17,500
Liabilities, held-for-sale	4,100
Disposal group, impairment charge	6,600
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, excluding other borrowings and finance leases	$ 1,100,000	$ 962,800

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