Document and Entity Information
Document and Entity Information | May 23, 2024 |
Cover [Abstract] | |
Document Type | 8-K |
Document Period End Date | Jun. 11, 2024 |
Entity Registrant Name | ALEXANDERS INC |
Entity Incorporation, State or Country Code | DE |
Entity File Number | 001-06064 |
Entity Tax Identification Number | 51-0100517 |
Entity Address, Address Line One | 210 Route 4 East |
Entity Address, City or Town | Paramus, |
Entity Address, State or Province | NJ |
Entity Address, Postal Zip Code | 07652 |
City Area Code | 201 |
Local Phone Number | 587-8541 |
Title of 12(b) Security | Common Stock, $1 par value per share |
Trading Symbol | ALX |
Security Exchange Name | NYSE |
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 | 0000003499 |
Amendment Flag | false |