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Income Taxes (Reconciliation Of Statutory Rate And Effective Tax Rate) (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2022
Income Tax Disclosure [Abstract]
Statutory rate	21.00%	21.00%	21.00%
State income taxes, net of federal income tax benefit	4.74%	4.09%	4.52%
Tax credits	(1.85%)	(1.48%)	(2.16%)
Tax reserves and interest expense, net	(0.01%)	0.00%	(0.83%)
Deferred tax asset valuation allowance, net	0.00%	(0.01%)	0.00%
Other	(0.24%)	0.36%	0.31%
Effective rate	23.64%	23.96%	22.84%
Resolution of uncertain tax positions, benefit			$ 50.2

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage 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 changes in the valuation allowance for deferred tax assets.

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Percentage 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 tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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