Variable Interest Entities - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) lot	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Variable Interest Entity [Line Items]
Maximum range of deposits required under the purchase agreements	10.00%
Net Contract Land Deposit Impairment Recoveries	$ 27,500	$ (22,100)	$ 25,600
Contract Land Deposits	$ 553,140	$ 527,180
Variable Interest Entities
Variable Interest Entity [Line Items]
Maximum range of deposits required under the purchase agreements	10.00%
Lots controlled by NVR | lot	125,100
Contract land deposits in cash under Lot Purchase Agreements	$ 543,100
Letters of credit related to lots	$ 6,900
Contract on Raw Ground with Landowners
Variable Interest Entity [Line Items]
Lots controlled by NVR | lot	19,300
Refundable deposits	$ 2,500
Contract Land Deposits	$ 10,100