Variable Interest Entities - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) lot	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Variable Interest Entity [Line Items]
Maximum range of deposits required under the purchase agreements	10.00%
Net Contract Land Deposit Impairment Recoveries	$ (2,900)	$ 27,500	$ (22,100)
Contract Land Deposits	$ 629,948	$ 553,140
Variable Interest Entities
Variable Interest Entity [Line Items]
Maximum range of deposits required under the purchase agreements	10.00%
Lots controlled by NVR | lot	134,900
Contract land deposits in cash under Lot Purchase Agreements	$ 617,000
Letters of credit related to lots	$ 7,700
Contract on Raw Ground with Landowners
Variable Interest Entity [Line Items]
Lots controlled by NVR | lot	22,700
Refundable deposits	$ 3,800
Contract Land Deposits	$ 13,000