| Document and Entity Information | May 14, 2020 |
| Entity Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | May 14, 2020 |
| Entity Registrant Name | VORNADO REALTY TRUST |
| Entity Incorporation, State or Country Code | MD |
| Entity File Number | 001-11954 |
| Entity Tax Identification Number | 22-1657560 |
| Entity Address, Address Line One | 888 Seventh Avenue |
| Entity Address, City or Town | New York, |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10019 |
| City Area Code | 212 |
| Local Phone Number | 894-7000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000899689 |
| Amendment Flag | false |
| Vornado Realty L.P. | |
| Entity Information [Line Items] | |
| Entity Registrant Name | VORNADO REALTY LP |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-34482 |
| Entity Tax Identification Number | 13-3925979 |
| Entity Central Index Key | 0001040765 |
| Amendment Flag | false |
| New York Stock Exchange | Common Shares of beneficial interest, $.04 par value per share | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | Common Shares of beneficial interest, $.04 par value per share |
| Trading Symbol | VNO |
| Security Exchange Name | NYSE |
| New York Stock Exchange | 5.70% Series K | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 5.70% Series K |
| Trading Symbol | VNO/PK |
| Security Exchange Name | NYSE |
| New York Stock Exchange | 5.40% Series L | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 5.40% Series L |
| Trading Symbol | VNO/PL |
| Security Exchange Name | NYSE |
| New York Stock Exchange | 5.25% Series M | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 5.25% Series M |
| Trading Symbol | VNO/PM |
| Security Exchange Name | NYSE |
