v3.26.1
Segment Information (Narratives) (Details)
6 Months Ended
May 31, 2026
segment
principalBusiness
Schedule of Equity Method Investments [Line Items]  
Number of principal businesses | principalBusiness 2
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