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

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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-Name Accounting Standards Codification
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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.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
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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.

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-Publisher FASB
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Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to disposition of asset. Includes, but is not limited to, intra-entity transfer of asset other than inventory.

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Amount of decrease in unrecognized tax benefits resulting from acquisitions.

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of increase in unrecognized tax benefits resulting from acquisitions.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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