DEBT (Narrative) (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Feb. 29, 2024 USD ($)	May 31, 2024 USD ($) facility bank	Aug. 31, 2023 USD ($)
Debt Instrument [Line Items]
Number of facilities in a committed credit agreement | facility		1
Number of banks | bank		1
Annual commitment fee		0.25%
Total future lease payments		$ 135,098	$ 139,680
Committed
Debt Instrument [Line Items]
Credit facility current borrowing capacity		75,000
Group of Subsidiaries | Covenants
Debt Instrument [Line Items]
Total future lease payments		$ 80,100	$ 91,200
Panama subsidiary | Short-term Borrowings
Debt Instrument [Line Items]
Total future lease payments	$ 16,500
Debt instrument, term	15 years
Basis spread on variable rate	1.80%
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) [Member]
Panama subsidiary | Short-term Borrowings | Special Interest Compensation Fund (FECI)
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%