XML 45 R35.htm IDEA: XBRL DOCUMENT
v3.22.2

Land Under Development - Additional Information (Detail) $ in Thousands | Jun. 30, 2022 USD ($) lot
--- | ---
Real Estate [Abstract] |
Carrying value of raw parcels of land | $ 16,274
Number of finished lots expected to be developed from raw parcels of land | lot | 450
Aggregate additional funding commitments related to raw land property under joint development | $ 1,800
Expected development credits that will offset the aggregate additional funding commitments related to raw land property development | $ 600

X
- Definition Aggregate additional funding commitments related to raw land property development. + References No definition available. + Details
Name: | nvr_AggregateAdditionalFundingCommitmentsRelatedToRawLandPropertyDevelopment
Namespace Prefix: | nvr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Expected Development Credit + References No definition available. + Details
Name: | nvr_ExpectedDevelopmentCredit
Namespace Prefix: | nvr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Number of finished lots expected to be developed from raw parcels of land. + References No definition available. + Details
Name: | nvr_NumberOfFinishedLotsExpectedToBeDevelopedFromRawParcelsOfLand
Namespace Prefix: | nvr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Carrying amount as of the balance sheet date, net of valuation allowances and impairment losses, of costs of land expected to be developed in the near term plus capitalized costs of development, for purposes of selling completed units to home buyers or commercial or industrial entities.. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_InventoryRealEstateLandAndLandDevelopmentCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_RealEstateAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration