v3.25.4
Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Significant Accounting Policies [Line Items]      
Allowance for losses on contract land deposits $ 110,958 $ 58,597  
Net Contract Land Deposit Impairment Charges (Recoveries) 75,900 7,200 $ (2,900)
Mortgage repurchase reserve, expense (reversal) $ 18,900 18,700  
Model home furniture and fixtures      
Significant Accounting Policies [Line Items]      
Property, Plant and Equipment, Useful Life 2 years    
Office facilities and other | Minimum      
Significant Accounting Policies [Line Items]      
Property, Plant and Equipment, Useful Life 3 years    
Office facilities and other | Maximum      
Significant Accounting Policies [Line Items]      
Property, Plant and Equipment, Useful Life 10 years    
Manufacturing Facilities | Minimum      
Significant Accounting Policies [Line Items]      
Property, Plant and Equipment, Useful Life 5 years    
Manufacturing Facilities | Maximum      
Significant Accounting Policies [Line Items]      
Property, Plant and Equipment, Useful Life 40 years    
Home Building      
Significant Accounting Policies [Line Items]      
Cash $ 1,883,844 2,561,339  
Customer deposits 249,210 322,926  
Mortgage Banking      
Significant Accounting Policies [Line Items]      
Cash $ 32,642 49,636  
Mortgage Banking | Level 2 | Fair Value, Measurements, Recurring      
Significant Accounting Policies [Line Items]      
Typical length of days loans sold into secondary market 30 days    
Mortgage Banking | Level 2 | Fair Value, Measurements, Recurring | Rate lock commitments      
Significant Accounting Policies [Line Items]      
Notional or Principal Amount $ 1,707,835 2,006,907  
Mortgage Banking | Level 2 | Fair Value, Measurements, Recurring | Forward sales contracts      
Significant Accounting Policies [Line Items]      
Notional or Principal Amount 1,430,400 2,140,042  
Other Assets      
Significant Accounting Policies [Line Items]      
Capitalized Contract Cost, Net $ 16,300 $ 21,700