Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended
Feb. 28, 2025	Feb. 29, 2024	Nov. 30, 2024
Income Tax Disclosure [Abstract]
Tax benefits from share-based compensation	$ 5,400,000	$ 6,100,000
Income tax credits and adjustments	1,700,000	4,100,000
Nondeductible expense	2,400,000	$ 2,500,000
Deferred tax assets	119,200,000		$ 119,200,000
Deferred tax assets, valuation allowance	16,800,000		$ 16,800,000
Adjustments to deferred tax valuation allowance	$ 0

Deferred Tax Assets Liabilities Gross

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- Definition

Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount - Other

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

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

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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- Definition

A credit or adjustment for government or taxing authority authorized decrease in taxes owed as a result of meeting certain tax policy conditions.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Publisher FASB
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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 nondeductible expenses.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-12

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