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Income Taxes - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Aug. 31, 2023 | Aug. 31, 2022 | Aug. 31, 2021
Operating Loss Carryforwards [Line Items] |  |  |
Income tax expense (benefit) | $ 107,655 | $ 132,116 | $ (38,249)
Deferred Tax Liabilities, Net | 122,453 | 139,019 |
Income (Loss) from Continuing Operations before Income Taxes, Domestic | 2,000,000 | 1,800,000 | 497,500
Income (Loss) from Continuing Operations before Income Taxes, Foreign | $ 55,400 | $ (4,900) | $ 17,800
Statutory federal income tax rate | 21.00% | 21.00% | 21.00%
Operating Loss Carryforwards | $ 587,300 |  |
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration | 344,400 |  |
Amount of unrecognized tax benefits that would benefit effective tax rate | 116,000 |  |
Unrecognized Tax Benefits, Interest on Income Taxes Expense | 800 | $ 700 | $ 1,400
Unrecognized Tax Benefits, Interest on Income Taxes Accrued | 3,700 | 3,300 |
State tax credit |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Tax credit carryforward, amount | 116,600 |  |
NCRA | State tax credit |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Tax credit carryforward, amount | $ 116,600 | $ 122,800 |

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