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Segment Information (Narratives) (Details)
3 Months Ended
May 31, 2022
segment
Schedule of Equity Method Investments [Line Items]  
Number of reporting segments 5
KBHS, LLC [Member] | Financial Service [Member]  
Schedule of Equity Method Investments [Line Items]  
Ownership interest in the venture 50.00%
KBHS, LLC [Member] | GR Alliance Ventures, LLC [Domain]  
Schedule of Equity Method Investments [Line Items]  
Ownership interest in the venture 50.00%
Home Building [Member]  
Schedule of Equity Method Investments [Line Items]  
Number of reporting segments 4
Financial Service [Member]  
Schedule of Equity Method Investments [Line Items]  
Number of reporting segments 1