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Income Taxes (Details) - USD ($) | 3 Months Ended | 9 Months Ended | 10 Months Ended |
--- | --- | --- | --- | ---
Aug. 31, 2022 | Aug. 31, 2021 | Feb. 28, 2021 | Aug. 31, 2022 | Aug. 31, 2021 | Dec. 31, 2020 | Nov. 30, 2021
Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |  |  |  |  |
Income tax expense | $ 70,900,000 | $ 24,100,000 |  | $ 186,900,000 | $ 80,900,000 |  |
Effective tax rate | 21.70% | 13.80% |  | 23.70% | 17.20% |  |
Excess tax benefits related to stock-based compensation |  |  |  | $ (2,200,000) | $ (3,900,000) |  |
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount | $ 2,900,000 | $ 2,500,000 |  | 6,800,000 | 5,800,000 |  |
Tax credits | 15,300,000 | 21,500,000 |  | 16,100,000 | 39,000,000 |  |
Deferred tax assets | 173,700,000 |  |  | 173,700,000 |  |  | $ 194,800,000
Valuation allowance | 17,400,000 |  |  | 17,400,000 |  |  | 17,400,000
Adjustments to deferred tax valuation allowance |  |  |  | 0 |  |  |
CARES Act Employee Retention Credit |  |  | $ 4,300,000 |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |  |
Share-based Payment Arrangement, Expense, Tax Benefit |  |  |  | 2,200,000 | 3,900,000 |  |
Tax credits | 15,300,000 | $ 21,500,000 |  | 16,100,000 | $ 39,000,000 |  |
Deferred Tax Assets, Valuation Allowance | $ 17,400,000 |  |  | $ 17,400,000 |  |  | $ 17,400,000
Maximum [Member] |  |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |  |
RefundableTaxCreditAllowedPerEmployeeCARESAct |  |  |  |  |  | $ 5,000 |

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