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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Aug. 31, 2021 | Aug. 31, 2020 | Aug. 31, 2021 | Aug. 31, 2020
Income Tax Disclosure [Abstract] |  |  |  |
Effective income tax rate reconciliation, tax credit, amount | $ (22.9) | $ (13.2) | $ (22.9) | $ (40.1)
Shares issued, tax benefit |  | 7.3 | 2.2 | 13.0
Effective income tax rate reconciliation, change in deferred tax assets valuation allowance, amount |  |  | 4.5 | 9.3
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations | 4.3 | 2.1 | 9.2 | 5.5
Effective Income Tax Rate Reconciliation, Disposition of Asset, Amount |  |  |  | $ 9.9
Unrecognized Tax Benefits, Decrease Resulting from Acquisition |  |  | 10.4 |
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions | 2.0 |  | 2.0 |
Unrecognized Tax Benefits, Increase Resulting from Acquisition | 1.0 |  |  |
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions | 1.1 |  | 1.1 |
Unrecognized Tax Benefits, Period Increase (Decrease) | 13.3 |  | 13.3 |
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability | $ 2.4 | $ 1.1 | $ 2.5 |

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- Definition Amount of tax benefit for recognition of expense of award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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