Variable Interest Entities ("VIEs") - Additional Information (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) lot	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
Variable Interest Entity [Line Items]
Net Contract Land Deposit Impairment Recoveries	$ 3,100	$ 5,900
Loss reserve on contract land deposits	53,469		$ 57,060
Contract land deposits in cash	$ 555,136		$ 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	123,100
Contract land deposits in cash under lot purchase Agreements	$ 543,900
Letters of credit related to lots	$ 7,900
Contract on Raw Ground with Landowners
Variable Interest Entity [Line Items]
Lots controlled by NVR | lot	19,400
Contract land deposits in cash	$ 11,300
Refundable deposits and letters of credit	$ 4,200