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| | | <Role> http://www.vno.com/role/DisclosureSegmentInformationParentheticalsDetails </Role> |
| | | <ShortName> Segment Information (Parentheticals) (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <LongName> All Reports </LongName> |
| | | <ReportType> Book </ReportType> |
| | | <ShortName> All Reports </ShortName> |
| | | </Report> |
| | </MyReports> |
| <Logs> |
| | <Log type="Info"> Element us-gaap_AreaOfRealEstateProperty had a mix of decimals attribute values: -5 -3 0. </Log> |
| | <Log type="Info"> Element us-gaap_AssetImpairmentCharges had a mix of decimals attribute values: -6 -3. </Log> |
| | <Log type="Info"> Element us-gaap_DebtInstrumentInterestRateEffectivePercentage had a mix of decimals attribute values: 4 5. </Log> |
| | <Log type="Info"> Element us-gaap_EquityMethodInvestmentOwnershipPercentage had a mix of decimals attribute values: 2 3. </Log> |
| | <Log type="Info"> Element us-gaap_PaymentsToAcquireBusinessesGross had a mix of decimals attribute values: -6 -3. </Log> |
| | <Log type="Info"> Element us-gaap_ProceedsFromSaleOfRealEstate had a mix of decimals attribute values: -6 -3. </Log> |
| | <Log type="Info"> Element us-gaap_SaleOfStockPricePerShare had a mix of decimals attribute values: 0 2. </Log> |
| | <Log type="Info"> Element vno_GrossProceedsFromSaleOfRealEstate had a mix of decimals attribute values: -6 -3. </Log> |
| | <Log type="Info"> Element vno_NetProceedsFromSaleOfRealEstate had a mix of decimals attribute values: -6 -3. </Log> |
| | <Log type="Info"> Element vno_SellerFinancingRelatedToPropertySales had a mix of decimals attribute values: -6 -3. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '040220 - Disclosure - Basis of Presentation and Significant Accounting Policies (Details 2)' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '040610 - Disclosure - Investments in Partially Owned Entities (Alexander's Inc.) (Details)' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '040620 - Disclosure - Investments in Partially Owned Entities (LNR) (Details)' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '040700 - Disclosure - Mortgage and Mezzanine Loans Receivable (Narratives) (Details)' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '040800 - Disclosure - Dispositions (Narratives) (Details)' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '041000 - Disclosure - Debt (Narratives) (Details)' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '041010 - Disclosure - Debt (Summary of Debt) (Details)' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '041320 - Disclosure - Fair Value Measurements (Narratives) (Details)' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '042100 - Disclosure - Commitments and Contingencies (Details)' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '042200 - Disclosure - Related Party Transactions (Details)' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> Process Flow-Through: 000100 - Statement - Consolidated Balance Sheets </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column 'Dec. 31, 2012' </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column 'Dec. 31, 2011' </Log> |
| | <Log type="Info"> Process Flow-Through: 000150 - Statement - Consolidated Balance Sheets (Parentheticals) </Log> |
| | <Log type="Info"> Process Flow-Through: 000200 - Statement - Consolidated Statements of Income </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column '3 Months Ended Dec. 31, 2014' </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2014' </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column '3 Months Ended Jun. 30, 2014' </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column '3 Months Ended Mar. 31, 2014' </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column '3 Months Ended Dec. 31, 2013' </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2013' </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column '3 Months Ended Jun. 30, 2013' </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column '3 Months Ended Mar. 31, 2013' </Log> |
| | <Log type="Info"> Process Flow-Through: 000300 - Statement - Consolidated Statements of Comprehensive Income </Log> |
| | <Log type="Info"> Process Flow-Through: 000500 - Statement - Consolidated Statements of Cash Flows </Log> |
| | <Log type="Info"> Process Flow-Through: 000510 - Statement - Consolidated Statements of Cash Flows (Parentheticals) </Log> |
| | </Logs> |
| <InputFiles> |
| | <File> vno-20141231.xml </File> |
| | <File> vno-20141231.xsd </File> |
| | <File> vno-20141231_cal.xml </File> |
| | <File> vno-20141231_def.xml </File> |
| | <File> vno-20141231_lab.xml </File> |
| | <File> vno-20141231_pre.xml </File> |
| | </InputFiles> |
| <SupplementalFiles/> |
| <BaseTaxonomies/> |
| <HasPresentationLinkbase> true </HasPresentationLinkbase> |
| <HasCalculationLinkbase> true </HasCalculationLinkbase> |
| </FilingSummary> |