v3.26.3
Commitments and Contingencies (Narratives) (Details)
 9 Months Ended
Aug. 31, 2026
USD ($)
home
Nov. 30, 2025
USD ($)
Loss Contingencies [Line Items]    
Structural warranty provided by company (in years) 10 years  
Warranty for other components of home (in years) 1 year  
Performance bonds $ 1,350,000,000 $ 1,370,000,000
Letters of credit outstanding 55,100,000 69,800,000
Cash deposits 65,988,000 80,886,000
Aggregate purchase price of land 1,683,109,000 2,063,294,000
LOC Facilities    
Loss Contingencies [Line Items]    
Letters of credit outstanding $ 53,500,000 68,200,000
Expiration period 1 year  
Damages from Product Defects    
Loss Contingencies [Line Items]    
Minimum number of affected homes for construction defect claims | home 2  
Warranty Obligations    
Loss Contingencies [Line Items]    
Structural warranty provided by company (in years) 10 years  
Self Insurance    
Loss Contingencies [Line Items]    
Reclassification of warranty recoveries to receivables $ 27,200,000 $ 22,300,000
Minimum    
Loss Contingencies [Line Items]    
Warranty on electrical and other building systems (in years) 2 years  
Insurance coverage amount for construction $ 50,000  
Maximum    
Loss Contingencies [Line Items]    
Warranty on electrical and other building systems (in years) 5 years  
Insurance coverage amount for construction $ 250,000