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v3.20.2

Derivative Financial Instruments and Hedging Activities - Derivatives (Details) $ in Thousands, bbl in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
May 31, 2020 USD ($) bbl | May 31, 2019 USD ($) | Aug. 31, 2019 USD ($) bbl
Derivative [Line Items] |  |  |
Derivative Liability, Noncurrent | $ 9,000 |  | $ 7,400
Derivative Asset, Fair Value, Amount Not Offset Against Collateral | 349,372 |  | 180,894
Derivative Assets | 409,662 |  | 246,728
Derivative Asset, Fair Value, Gross Amount Not Offset on Balance Sheet | 60,290 |  | 65,834
Derivative Liability, Fair Value, Amount Not Offset Against Collateral | 266,693 |  | 191,073
Derivative Liabilities | 375,467 |  | 244,019
Derivative Liability, Collateral, Right to Reclaim Cash, Offset | 1,487 |  | 4,191
Derivative Liability, Fair Value, Gross Amount Not Offset on Balance Sheet | 107,287 |  | 48,755
Embedded Derivative, Gain on Embedded Derivative | $ 2,300 | $ 2,400 |
Credit Rating Agencies Threshold, Minimum | 66.67% |  |
Deferred Gain (Loss) on Discontinuation of Interest Rate Fair Value Hedge | $ 16,400 |  |
Derivative Asset, Noncurrent, Excluding Fair Value Hedges | 25,300 |  | 26,600
CF Nitrogen LLC [Member] |  |  |
Derivative [Line Items] |  |  |
Annual Payment Receivable Contingent On Investment Credit Rating | 5,000 |  |
Embedded derivative asset | 18,600 |  |
Foreign exchange derivatives | Not Designated as Hedging Instrument |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Fair Value, Amount Not Offset Against Collateral | 2,100 |  | 3,226
Derivative Assets | 13,828 |  | 10,334
Derivative Asset, Fair Value, Gross Amount Not Offset on Balance Sheet | 11,728 |  | 7,108
Derivative Liability, Fair Value, Amount Not Offset Against Collateral | 81,234 |  | 13,501
Derivative Liabilities | 92,962 |  | 20,609
Derivative Liability, Collateral, Right to Reclaim Cash, Offset | 0 |  | 0
Derivative Liability, Fair Value, Gross Amount Not Offset on Balance Sheet | 11,728 |  | 7,108
Derivative, Notional Amount | 1,500,000 |  | 894,700
Embedded Derivative Financial Instruments [Member] | Not Designated as Hedging Instrument |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Fair Value, Amount Not Offset Against Collateral | 18,636 |  | 21,364
Derivative Assets | 18,636 |  | 21,364
Derivative Asset, Fair Value, Gross Amount Not Offset on Balance Sheet | 0 |  | 0
Commodity derivatives | Not Designated as Hedging Instrument |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Fair Value, Amount Not Offset Against Collateral | 328,636 |  | 156,304
Derivative Assets | 377,198 |  | 215,030
Derivative Asset, Fair Value, Gross Amount Not Offset on Balance Sheet | 48,562 |  | 58,726
Derivative Liability, Fair Value, Amount Not Offset Against Collateral | 185,459 |  | 177,572
Derivative Liabilities | 282,505 |  | 223,410
Derivative Liability, Collateral, Right to Reclaim Cash, Offset | 1,487 |  | 4,191
Derivative Liability, Fair Value, Gross Amount Not Offset on Balance Sheet | 95,559 |  | $ 41,647
Fair Value Hedging | Interest rate swap derivatives | Designated as Hedging Instrument |  |  |
Derivative [Line Items] |  |  |
Derivative, Notional Amount | $ 365,000 |  |
Cash Flow Hedging |  |  |
Derivative [Line Items] |  |  |
Aggregate notional amount of cash flow hedges (in barrels) | bbl | 10.0 |  | 7.7
Cash Flow Hedging | Designated as Hedging Instrument |  |  |
Derivative [Line Items] |  |  |
Derivative Assets | $ 39,620 |  | $ 33,179
Derivative Liabilities | $ 15,945 |  | $ 5,351

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