v3.26.1
Variable Interest Entities ("VIEs") - Additional Information (Detail)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
lot
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
lot
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Variable Interest Entity [Line Items]          
Letters of credit related to lots $ 7,164   $ 7,164    
Net Contract Land Deposit Impairment Recoveries 21,700 $ 13,200 30,600 $ 21,300  
Loss reserve on contract land deposits 134,928   134,928   $ 110,958
Contract land deposits in cash $ 1,062,308   1,062,308   962,416
Contingent obligations in the form of letters of credit         4,565
Contract land deposit impairments, net     $ 30,587 $ 21,270  
Contingent obligations in the form of letters of credit         $ 4,565
Variable Interest Entities          
Variable Interest Entity [Line Items]          
Maximum range of deposits required under the purchase agreements 10.00%   10.00%    
Lots controlled by NVR | lot 174,900   174,900    
Contract land deposits in cash under lot purchase Agreements $ 1,012,300   $ 1,012,300    
Letters of credit related to lots $ 7,200   $ 7,200    
Contract on Raw Ground with Landowners          
Variable Interest Entity [Line Items]          
Lots controlled by NVR | lot 38,600   38,600    
Contract land deposits in cash $ 50,000   $ 50,000    
Refundable deposits and letters of credit $ 12,800   $ 12,800