Land Under Development	9 Months Ended
Sep. 30, 2017
Real Estate [Abstract]
Land Under Development	Land Under Development On a limited basis, NVR directly acquires raw land parcels already zoned for its intended use to develop into finished lots. Land under development includes the land acquisition costs, direct improvement costs, capitalized interest where applicable, and real estate taxes. In January 2017, the Company purchased a raw land parcel for approximately $14,400. In September 2017, the Company sold that land parcel to a developer for an amount which approximated NVR's net investment in the property as of the sale date. In conjunction with the sale, the Company also entered into a Lot Purchase Agreement with the developer for the option to purchase finished lots expected to be developed from the parcel. As of September 30, 2017, NVR directly owned a total of three separate raw land parcels with a carrying value of $19,182 that are expected to produce approximately 400 finished lots. The Company also has additional funding commitments of approximately $9,000 under a joint development agreement related to one parcel, a portion of which the Company expects will be offset by development credits of approximately $4,800. None of the raw parcels had any indicators of impairment as of September 30, 2017. Based on market conditions, NVR may on a limited basis continue to directly acquire additional raw parcels to develop into finished lots.

Land Under Development

On a limited basis, NVR directly acquires raw land parcels already zoned for its intended use to develop into finished lots. Land under development includes the land acquisition costs, direct improvement costs, capitalized interest where applicable, and real estate taxes.

In January 2017, the Company purchased a raw land parcel for approximately $14,400. In September 2017, the Company sold that land parcel to a developer for an amount which approximated NVR's net investment in the property as of the sale date. In conjunction with the sale, the Company also entered into a Lot Purchase Agreement with the developer for the option to purchase finished lots expected to be developed from the parcel.

As of September 30, 2017, NVR directly owned a total of three separate raw land parcels with a carrying value of $19,182 that are expected to produce approximately 400 finished lots. The Company also has additional funding commitments of approximately $9,000 under a joint development agreement related to one parcel, a portion of which the Company expects will be offset by development credits of approximately $4,800.

None of the raw parcels had any indicators of impairment as of September 30, 2017. Based on market conditions, NVR may on a limited basis continue to directly acquire additional raw parcels to develop into finished lots.