FAIR VALUE (Financial Assets and Financial Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($)	Feb. 28, 2022	Aug. 31, 2021	Feb. 28, 2021
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	$ 271.87		$ 151.74
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	815.64		264.53
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	451.69		$ 221.74
Fair value, measurements, recurring | Money market investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market investments	809,220,000	$ 441,297,000
Fair value, measurements, recurring | Commodity
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	82,672,000	27,323,000
Derivative liabilities	2,043,000	1,352,000
Fair value, measurements, recurring | Foreign exchange
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	1,983,000	2,537,000
Derivative liabilities	8,104,000	1,880,000
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	809,220,000	441,297,000
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	3,793,000	910,000
Derivative liabilities	2,043,000	1,352,000
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	1,983,000	2,537,000
Derivative liabilities	8,104,000	1,880,000
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	78,879,000	26,413,000
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