FAIR VALUE (Financial Assets and Financial Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($)	May 31, 2024	Aug. 31, 2023	May 31, 2023
Significant Unobservable Inputs (Level 3) | Minimum | Commodity | Valuation Technique, Discounted Cash Flow
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Energy floating rate	$ 324		$ 480
Significant Unobservable Inputs (Level 3) | Maximum | Commodity | Valuation Technique, Discounted Cash Flow
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Energy floating rate	532		855
Significant Unobservable Inputs (Level 3) | Average | Commodity | Valuation Technique, Discounted Cash Flow
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Energy floating rate	419		$ 630
Fair value, measurements, recurring | Money market investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market investments	561,442,000	$ 508,227,000
Fair value, measurements, recurring | Commodity
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	51,098,000	195,689,000
Derivative liabilities	10,688,000	4,068,000
Fair value, measurements, recurring | Foreign exchange
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	1,720,000	1,898,000
Derivative liabilities	794,000	2,566,000
Fair value, measurements, recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Money market investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market investments	561,442,000	508,227,000
Fair value, measurements, recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Commodity
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	1,986,000	1,264,000
Derivative liabilities	10,688,000	4,068,000
Fair value, measurements, recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign exchange
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Derivative liabilities	0	0
Fair value, measurements, recurring | Significant Other Observable Inputs (Level 2) | Money market investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market investments	0	0
Fair value, measurements, recurring | Significant Other Observable Inputs (Level 2) | Commodity
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Derivative liabilities	0	0
Fair value, measurements, recurring | Significant Other Observable Inputs (Level 2) | Foreign exchange
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	1,720,000	1,898,000
Derivative liabilities	794,000	2,566,000
Fair value, measurements, recurring | Significant Unobservable Inputs (Level 3) | Money market investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market investments	0	0
Fair value, measurements, recurring | Significant Unobservable Inputs (Level 3) | Commodity
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	49,112,000	194,425,000
Derivative liabilities	0	0
Fair value, measurements, recurring | Significant Unobservable Inputs (Level 3) | Foreign exchange
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Derivative liabilities	$ 0	$ 0