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Segment Information (Narratives) (Details) | 9 Months Ended
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Aug. 31, 2023 segment
Schedule of Equity Method Investments [Line Items] |
Number of reportable segments | 5
KBHS, LLC | Financial services |
Schedule of Equity Method Investments [Line Items] |
Ownership interest in joint venture | 50.00%
KBHS, LLC | GR Alliance, LLC |
Schedule of Equity Method Investments [Line Items] |
Ownership interest in joint venture | 50.00%
Homebuilding |
Schedule of Equity Method Investments [Line Items] |
Number of reportable segments | 4
Financial services |
Schedule of Equity Method Investments [Line Items] |
Number of reportable segments | 1

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