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Segment Information (Narrative) (Details)	12 Months Ended
	Nov. 30, 2023 segment
KBHS, LLC | Financial service
Segment Reporting Information [Line Items]
Ownership interest in joint venture	50.00%
KBHS, LLC | GR Alliance, LLC
Segment Reporting Information [Line Items]
Ownership interest in joint venture	50.00%
Homebuilding
Segment Reporting Information [Line Items]
Number of reportable segments	4
Financial services
Segment Reporting Information [Line Items]
Number of reportable segments	1

X

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-18

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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