ALEXANDERS INC, 10-K filed on February 12, 2024
v3.24.0.1
Cover - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Jan. 31, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-06064    
Entity Registrant Name ALEXANDERS INC    
Entity Incorporation, State or Country Code DE    
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    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 390,771
Entity Common Stock, Shares Outstanding   5,107,290  
Documents Incorporated by Reference
Part III: Portions of the Proxy Statement for the Annual Meeting of Stockholders to be held on May 23, 2024.
   
Entity Central Index Key 0000003499    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Amendment Flag false    
v3.24.0.1
Audit Information
12 Months Ended
Dec. 31, 2023
Audit Information [Abstract]  
Auditor Firm ID 34
Auditor Name DELOITTE & TOUCHE LLP
Auditor Location New York, New York
v3.24.0.1
Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Real estate, at cost:    
Land $ 32,271 $ 33,050
Buildings and leasehold improvements 1,034,068 1,029,504
Development and construction in progress 281 22,044
Total 1,066,620 1,084,598
Accumulated depreciation and amortization (415,903) (396,268)
Real estate, net 650,717 688,330
Cash and cash equivalents 531,855 194,933
Restricted cash 21,122 19,545
Investments in U.S. Treasury bills 0 266,963
Tenant and other receivables 6,076 4,705
Receivable arising from the straight-lining of rents 124,866 127,497
Deferred lease costs, net, including unamortized leasing fees to Vornado of $19,540 and $22,174, respectively 24,888 28,490
Other assets 44,156 67,313
Assets 1,403,680 1,397,776
LIABILITIES AND EQUITY    
Mortgages payable, net of deferred debt issuance costs 1,092,551 1,091,051
Accounts payable and accrued expenses 51,750 48,785
Total liabilities 1,166,023 1,161,277
Commitments and contingencies
Preferred stock: $1.00 par value per share; authorized, 3,000,000 shares; issued and outstanding, none 0 0
Common stock: $1.00 par value per share; authorized, 10,000,000 shares; issued, 5,173,450 shares; outstanding, 5,107,290 shares 5,173 5,173
Additional capital 34,315 33,865
Retained earnings 182,336 172,243
Accumulated other comprehensive income 16,201 25,586
Equity before treasury stock 238,025 236,867
Treasury stock: 66,160 shares, at cost (368) (368)
Total equity 237,657 236,499
Total liabilities and equity 1,403,680 1,397,776
Vornado    
LIABILITIES AND EQUITY    
Other liabilities 715 801
Nonrelated party    
LIABILITIES AND EQUITY    
Other liabilities $ 21,007 $ 20,640
v3.24.0.1
Consolidated Balance Sheets (Parentheticals) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Statement of Financial Position [Abstract]    
Unamortized leasing fees to Vornado $ 19,540 $ 22,174
Preferred stock: par value per share (in usd per share) $ 1.00 $ 1.00
Preferred stock: authorized shares (in shares) 3,000,000 3,000,000
Preferred stock: issued shares (in shares) 0 0
Preferred stock: outstanding shares (in shares) 0 0
Common stock: par value per share (in usd per share) $ 1.00 $ 1.00
Common stock: authorized shares (in shares) 10,000,000 10,000,000
Common stock: issued shares (in shares) 5,173,450 5,173,450
Common stock: outstanding shares (in shares) 5,107,290 5,107,290
Treasury stock: shares (in shares) 66,160 66,160
v3.24.0.1
Consolidated Statements of Income - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
REVENUES      
Rental revenues $ 224,962 $ 205,814 $ 206,148
EXPENSES      
Operating, including fees to Vornado of $6,480, $6,037 and $5,952, respectively (101,210) (90,446) (91,089)
Depreciation and amortization (32,898) (29,797) (32,938)
General and administrative, including management fees to Vornado of $2,440, $2,440 and $2,380, respectively (6,341) (6,106) (5,924)
Total expenses (140,449) (126,349) (129,951)
Interest and other income 22,245 6,769 639
Interest and debt expense (58,297) (28,602) (19,686)
Change in fair value of marketable securities 0 0 3,482
Net gains on sale of real estate 53,952 0 69,950
Income from continuing operations 102,413 57,632 130,582
Income from discontinued operations (see Note 8) 0 0 2,348
Net income $ 102,413 $ 57,632 $ 132,930
Income per common share - basic and diluted:      
Income from continuing operations, basic (usd per share) $ 19.97 $ 11.24 $ 25.48
Income from continuing operations, diluted (usd per share) 19.97 11.24 25.48
Income from discontinued operations (see Note 8), basic (usd per share) 0 0 0.46
Income from discontinued operations (see Note 8), diluted (usd per share) 0 0 0.46
Net income per common share, diluted (in dollars per share) 19.97 11.24 25.94
Net income per common share, basic (usd per share) $ 19.97 $ 11.24 $ 25.94
Weighted average shares outstanding - basic (in shares) 5,129,330 5,126,100 5,123,613
Weighted average shares outstanding - diluted (in shares) 5,129,330 5,126,100 5,123,613
v3.24.0.1
Consolidated Statements of Income (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Operating fees to Vorando $ 101,210 $ 90,446 $ 91,089
General and administrative, including management fees 6,341 6,106 5,924
Vornado      
Operating fees to Vorando 6,480 6,037 5,952
General and administrative, including management fees $ 2,440 $ 2,440 $ 2,380
v3.24.0.1
Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Statement of Comprehensive Income [Abstract]      
Net income $ 102,413 $ 57,632 $ 132,930
Other comprehensive (loss) income:      
Change in fair value of interest rate derivatives and other (9,385) 18,092 8,201
Comprehensive income $ 93,028 $ 75,724 $ 141,131
v3.24.0.1
Consolidated Statements of Changes in Equity - USD ($)
$ in Thousands
Total
Common Stock
Additional Capital
Retained Earnings
Accumulated Other Comprehensive (Loss) Income
Treasury Stock
Beginning balance (in shares) at Dec. 31, 2020   5,173,000        
Beginning balance at Dec. 31, 2020 $ 203,228 $ 5,173 $ 32,965 $ 166,165 $ (707) $ (368)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 132,930     132,930    
Dividends paid ($18.00 per common share) (92,220)     (92,220)    
Change in fair value of interest rate derivatives and other 8,201       8,201  
Deferred stock unit grants 450   450      
Ending balance (in shares) at Dec. 31, 2021   5,173,000        
Ending balance at Dec. 31, 2021 252,589 $ 5,173 33,415 206,875 7,494 (368)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 57,632     57,632    
Dividends paid ($18.00 per common share) (92,264)     (92,264)    
Change in fair value of interest rate derivatives and other 18,092       18,092  
Deferred stock unit grants $ 450   450      
Ending balance (in shares) at Dec. 31, 2022 5,173,450 5,173,000        
Ending balance at Dec. 31, 2022 $ 236,499 $ 5,173 33,865 172,243 25,586 (368)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 102,413     102,413    
Dividends paid ($18.00 per common share) (92,320)     (92,320)    
Change in fair value of interest rate derivatives and other (9,385)       (9,385)  
Deferred stock unit grants $ 450   450      
Ending balance (in shares) at Dec. 31, 2023 5,173,450 5,173,000        
Ending balance at Dec. 31, 2023 $ 237,657 $ 5,173 $ 34,315 $ 182,336 $ 16,201 $ (368)
v3.24.0.1
Consolidated Statements of Changes in Equity (Parenthetical) - $ / shares
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Statement of Stockholders' Equity [Abstract]      
Dividends paid per common share (in usd per share) $ 18.00 $ 18.00 $ 18.00
v3.24.0.1
Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES      
Net income $ 102,413 $ 57,632 $ 132,930
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization, including amortization of debt issuance costs 34,605 31,454 34,592
Net gains on sale of real estate (2021 includes $2,348 from discontinued operations) (53,952) 0 (72,298)
Straight-lining of rents 2,631 7,960 9,817
Stock-based compensation expense 450 450 450
Change in fair value of marketable securities 0 0 (3,482)
Interest rate cap premium amortization 7,770 0 0
Other non-cash adjustments (1,559) (2,928) 0
Change in operating assets and liabilities:      
Tenant and other receivables (572) 1,680 1,731
Other assets 14,141 2,782 3,099
Amounts due to Vornado (60) 40 (211)
Accounts payable and accrued expenses 3,263 3,141 12,501
Other liabilities (19) 338 (664)
Net cash provided by operating activities 109,111 102,549 118,465
CASH FLOWS FROM INVESTING ACTIVITIES      
Construction in progress and real estate additions (4,681) (14,386) (19,520)
Purchase of U.S. Treasury bills 0 (364,238) 0
Proceeds from maturities of U.S. Treasury bills 264,881 99,358 0
Proceeds from sales of real estate 67,821 0 81,871
Purchase of interest rate cap (11,258) 0 0
Proceeds from interest rate cap 5,049 0 0
Return of short-term investment 0 0 3,600
Proceeds from sale of marketable securities 0 0 9,506
Net cash provided by (used in) investing activities 321,812 (279,266) 75,457
CASH FLOWS FROM FINANCING ACTIVITIES      
Dividends paid (92,320) (92,264) (92,220)
Debt issuance costs (104) (46) (74)
Debt repayments 0 0 (68,000)
Net cash used in financing activities (92,424) (92,310) (160,294)
Net increase (decrease) in cash and cash equivalents and restricted cash 338,499 (269,027) 33,628
Cash and cash equivalents and restricted cash at beginning of year 214,478 483,505 449,877
Cash and cash equivalents and restricted cash at end of year 552,977 214,478 483,505
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH      
Cash and cash equivalents at beginning of year 194,933 463,539 428,710
Restricted cash at beginning of year 19,545 19,966 21,167
Cash and cash equivalents and restricted cash at beginning of year 214,478 483,505 449,877
Cash and cash equivalents at end of year 531,855 194,933 463,539
Restricted cash at end of year 21,122 19,545 19,966
Cash and cash equivalents and restricted cash at end of year 552,977 214,478 483,505
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION      
Cash payments for interest (net of amounts capitalized) 53,975 25,934 18,568
NON-CASH TRANSACTIONS      
Write-off of fully depreciated assets 8,097 23 5,628
Liability for real estate additions, including $141 for development fees due to Vornado in 2021 1,969 2,254 1,445
Additional estimated lease liability arising from the recognition of right-of-use asset $ 0 $ 16,099 $ 0
v3.24.0.1
Consolidated Statements of Cash Flows (Parenthetical)
$ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
Discontinued operations $ 2,348
Development fees 1,445
Vornado  
Development fees $ 141
v3.24.0.1
Organization
12 Months Ended
Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Organization ORGANIZATION
Alexander’s, Inc. (NYSE: ALX) is a real estate investment trust (“REIT”), incorporated in Delaware, engaged in leasing, managing, developing and redeveloping its properties. All references to “we,” “us,” “our,” “Company” and “Alexander’s” refer to Alexander’s, Inc. and its consolidated subsidiaries. We are managed by, and our properties are leased and developed by, Vornado Realty Trust (“Vornado”) (NYSE: VNO).
 
We have five properties in New York City consisting of:
 
Operating properties
 
731 Lexington Avenue, a 1,079,000 square foot multi-use building, comprising the entire block bounded by Lexington Avenue, East 59th Street, Third Avenue and East 58th Street in Manhattan. The building contains 939,000 and 140,000 of rentable square feet of office and retail space, respectively. Bloomberg L.P. (“Bloomberg”) occupies all of the office space. The Home Depot (83,000 square feet) is the principal retail tenant;

Rego Park I, a 338,000 square foot shopping center, is located on Queens Boulevard and 63rd Road in Queens. The center is anchored by a 50,000 square foot Burlington and a 36,000 square foot Marshalls.

On December 3, 2022, IKEA closed its 112,000 square foot store at our Rego Park I property under a lease that was set to expire in December 2030. The lease included a right to terminate effective no earlier than March 16, 2026, subject to payment of rent through the termination date and an additional termination payment equal to the lesser of $10,000,000 or the amount of rent due under the remaining term. On September 27, 2023, we entered into a lease modification agreement with IKEA which accelerates its lease termination date to April 1, 2024. Under the lease modification agreement, IKEA will pay its remaining rent due through March 16, 2026 and the $10,000,000 termination payment over the modified lease term;

Rego Park II, a 616,000 square foot shopping center, is located adjacent to the Rego Park I shopping center in Queens. The center is anchored by a 145,000 square foot Costco and a 133,000 square foot Kohl’s, which has been subleased;

Flushing, a 167,000 square foot building, located on Roosevelt Avenue and Main Street in Queens, that is subleased to New World Mall LLC. The property is ground leased through January 2027 with one 10-year extension option; and

The Alexander apartment tower, located above our Rego Park II shopping center, contains 312 units aggregating 255,000 square feet.
 
We have determined that our properties have similar economic characteristics and meet the criteria that permit the properties to be aggregated into one reportable segment (the leasing, management, development and redeveloping of properties in New York City). Our chief operating decision-maker assesses and measures segment operating results based on a performance measure referred to as net operating income at the individual operating segment. Net operating income for each property represents net rental revenues less operating expenses.
v3.24.0.1
Summary of Significant Accounting Policies
12 Months Ended
Dec. 31, 2023
Accounting Policies [Abstract]  
Summary Of Significant Accounting Policies SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Basis of Presentation – The accompanying consolidated financial statements include our accounts and those of our consolidated subsidiaries.  All intercompany amounts have been eliminated. Our consolidated financial statements are prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”), which requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting periods.  Actual results could differ from those estimates.
2.    SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - continued
 Recently Issued Accounting Literature - In March 2020, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2020-04 establishing Accounting Standards Codification (“ASC”) Topic 848, Reference Rate Reform, and in January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848): Scope (collectively, “ASC 848”). ASC 848 contains practical expedients for reference rate reform related activities that impact debt, leases, derivatives and other contracts. The guidance in ASC 848 is optional and may be elected over time as reference rate reform activities occur. We have elected to apply the hedge accounting expedients related to probability and the assessments of effectiveness for future LIBOR-indexed cash flows to assume that the index upon which future hedged transactions will be based matches the index on the corresponding derivatives. Application of these expedients preserves the presentation of derivatives consistent with past presentation. In December 2022, the FASB issued ASU 2022-06, Deferral of the Sunset Date of Topic 848 (“ASU 2022-06”), which was issued to defer the sunset date of ASC 848 to December 31, 2024. ASU 2022-06 is effective immediately for all companies. As of December 31, 2023, we have transitioned all of our LIBOR-indexed debt and derivatives and, for our derivatives in hedge accounting relationships, utilized the elective relief in ASC 848, allowing for the continuation of hedge accounting through the transition process.
In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures (“ASU 2023-07”). ASU 2023-07 aims to improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. ASU 2023-07 requires disclosure of significant segment expenses that are regularly provided to the chief operating decision maker and included within each reported measure of segment profit or loss. The update also requires disclosure regarding the chief operating decision maker and expands the interim segment disclosure requirements. ASU 2023-07 is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. We are currently evaluating the impact of ASU 2023-07 on our consolidated financial statements.
In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures (“ASU 2023-09”). ASU 2023-09 requires entities to disclose additional information with respect to the effective tax rate reconciliation and to disclose the disaggregation by jurisdiction of income tax expense and income taxes paid. ASU 2023-09 is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. We are currently evaluating the impact of ASU 2023-09 on our consolidated financial statements.
Real Estate – Real estate is carried at cost, net of accumulated depreciation and amortization.  As of December 31, 2023 and 2022, the carrying amount of our real estate, net of accumulated depreciation and amortization, was $650,717,000 and $688,330,000, respectively.  Maintenance and repairs are generally expensed as incurred.  Depreciation requires an estimate by management of the useful life of each property and improvement as well as an allocation of the costs associated with a property to its various components. We capitalize all property operating expenses directly associated with and attributable to, the development and construction of a project, including interest expense. The capitalization period begins when development activities are underway and ends when it is determined that the asset is substantially complete and ready for its intended use, which is typically evidenced by the receipt of a temporary certificate of occupancy. General and administrative costs are expensed as incurred.
  Our properties are individually reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable.  An impairment exists when the carrying amount of an asset exceeds the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset, including an estimated terminal value calculated using an appropriate capitalization rate.  Estimates of future cash flows are based on our current plans, intended holding periods and available market information at the time the analyses are prepared.  For our development properties, estimates of future cash flows also include all future expenditures necessary to develop the asset, including interest payments that will be capitalized as part of the cost of the asset. An impairment loss is recognized only if the carrying amount of the asset is not recoverable and is measured based on the excess of the property’s carrying amount over its estimated fair value.  If our estimates of future cash flows, anticipated holding periods, or fair values change, based on market conditions or otherwise, our evaluation of impairment charges may be different and such differences could be material to our consolidated financial statements.  Estimates of future cash flows are subjective and are based, in part, on assumptions regarding future occupancy, rental rates and capital requirements that could differ materially from actual results.  Plans to hold properties over longer periods decrease the likelihood of recording impairment losses.
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - continued
Revenue Recognition – Rental revenues include revenues from the leasing of space at our properties to tenants, tenant services and parking garage revenues.We have the following revenue recognition policies:
Revenues from the leasing of space at our properties to tenants include (i) lease components, including fixed and variable lease payments, and nonlease components which include reimbursement of common area maintenance expenses, and (ii) reimbursement of real estate taxes and insurance expenses. As lessor, we have elected to combine the lease and nonlease components of our operating lease agreements and account for the components as a single lease component in accordance with ASC Topic 842, Leases (“ASC 842”).
Revenues from fixed lease payments for operating leases are recognized on a straight-line basis over the non-cancelable term of the lease, together with renewal options that are reasonably certain of being exercised. We commence revenue recognition when the tenant takes possession of the leased space and the leased space is substantially ready for its intended use.
Revenues derived from the reimbursement of real estate taxes, insurance expenses and common area maintenance expenses are generally recognized in the same period as the related expenses are incurred.
Revenues derived from sub-metered electric, elevator, trash removal and other services provided to our tenants at their request are recognized as the services are transferred in accordance with ASC Topic 606, Revenue from Contracts with Customers ("ASC 606").
Revenues derived from the operations of our parking facilities, which charge hourly or monthly fees to provide parking services to customers, are recognized as the services are transferred in accordance with ASC 606.
We evaluate on an individual lease basis whether it is probable that we will collect substantially all amounts due from our tenants and recognize changes in the collectability assessment of our operating leases as adjustments to rental revenue. Management exercises judgment in assessing collectability of tenant receivables and considers payment history, current credit status and publicly available information about the financial condition of the tenant, and other factors. Tenant receivables, including receivables arising from the straight-lining of rents, are written off when management deems that the collectability of substantially all future lease payments from a specific lease is not probable of collection, at which point, the Company will limit future rental revenues to cash received.
Cash and Cash Equivalents – Cash and cash equivalents consist of highly liquid investments with original maturities of three months or less when purchased and are carried at cost, which approximates fair value, due to their short-term maturities.  The majority of our cash and cash equivalents consist of (i) deposits at major commercial banks, which may at times exceed the Federal Deposit Insurance Corporation limit, (ii) money market funds, which invest in U.S. Treasury bills and (iii) certificates of deposit placed through an account registry service (“CDARS”). To date we have not experienced any losses on our invested cash.   
 Restricted Cash Restricted cash primarily consists of security deposits and other cash escrowed under loan and interest rate derivative agreements, including for debt service, real estate taxes, property insurance and capital improvements.
Investments in U.S. Treasury Bills Treasury bills are short-term debt obligations with maturities of one year or less backed by the U.S. Treasury Department. Treasury bills yield no interest, but are issued at a discount on their redemption prices. We classify our investments in U.S. Treasury bills as available-for-sale debt investments, recorded at fair value with any changes in fair value during the period recorded in other comprehensive income. These investments are considered Level 1 within the fair value hierarchy as they are highly liquid and are traded in an active secondary market. We use quoted market prices to determine the fair value of our investments in U.S. Treasury bills.
Deferred Charges – Direct financing costs are deferred and amortized over the terms of the related agreements as a component of interest and debt expense.  Direct and incremental costs related to successful leasing activities are capitalized and amortized on a straight-line basis over the lives of the related leases.  All other deferred charges are amortized on a straight-line basis, which approximates the effective interest rate method, in accordance with the terms of the agreements to which they relate.
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - continued
Income Taxes – We operate in a manner intended to enable us to continue to qualify as a REIT under Sections 856 – 860 of the Internal Revenue Code of 1986, as amended (the “Code”).  In order to maintain our qualification as a REIT under the Code, we must distribute at least 90% of our taxable income to stockholders each year. We distribute to our stockholders 100% of our taxable income and therefore, no provision for Federal income taxes is required. Dividends distributed for the year ended December 31, 2023 were characterized, for federal income tax purposes, as 41.5% ordinary income and 58.5% of long-term capital gain income. Dividends distributed for the year ended December 31, 2022 were characterized, for federal income tax purposes, as 100% ordinary income. Dividends distributed for the year ended December 31, 2021 were characterized, for federal income tax purposes, as 58.3% ordinary income and 41.7% of long-term capital gain income. 
The estimated taxable income attributable to our common stockholders (unaudited) for the years ended December 31, 2023, 2022 and 2021 was approximately $98,555,000, $64,960,000, and $101,184,000, respectively. The book to tax differences between net income and estimated taxable income primarily result from differences in the income recognition or deductibility of depreciation and amortization, gains or losses from the sale of real estate and other capital transactions, straight-line rent adjustments, the change in fair value of marketable securities and income from discontinued operations.
As of December 31, 2023, the net basis of our assets and liabilities for tax reporting purposes was approximately $145,246,000 lower than the amount reported for financial statement purposes.
v3.24.0.1
Revenue Recognition
12 Months Ended
Dec. 31, 2023
Revenue from Contract with Customer [Abstract]  
Revenue Recognition REVENUE RECOGNITION
The following is a summary of revenue sources for the years ended December 31, 2023, 2022 and 2021.
Year Ended December 31,
(Amounts in thousands)202320222021
Lease revenues$216,468 $197,230 $198,109 
Parking revenue4,456 4,897 4,407 
Tenant services4,038 3,687 3,632 
Rental revenues$224,962 $205,814 $206,148 
The components of lease revenues for the years ended December 31, 2023, 2022 and 2021 are as follows:
Year Ended December 31,
(Amounts in thousands)202320222021
Fixed lease revenues$147,569 $135,668 $129,509 
Variable lease revenues68,899 61,562 68,600 
Lease revenues$216,468 $197,230 $198,109 
v3.24.0.1
Real Estate Sales
12 Months Ended
Dec. 31, 2023
Real Estate [Abstract]  
Real Estate Sales REAL ESTATE SALES
On May 19, 2023, we sold the Rego Park III land parcel in Queens, New York, for $71,060,000 inclusive of consideration for Brownfield tax benefits and reimbursement of costs for plans, specifications and improvements to date. Net proceeds from the sale were $67,821,000 after closing costs and the financial statement gain was $53,952,000.
On June 4, 2021, we sold a parcel of land in the Bronx, New York for $10,000,000. Net proceeds from the sale were $9,291,000 after closing costs and the financial statement gain was $9,124,000.
On October 4, 2021, we sold 30.3 acres of land located in Paramus, New Jersey to IKEA Property, Inc., the tenant at the property, for $75,000,000, pursuant to the tenant’s purchase option contained in the lease. Net proceeds from the sale were $4,580,000 after closing costs and the repayment of the $68,000,000 mortgage loan. The financial statement gain was $60,826,000.
v3.24.0.1
Related Party Transactions
12 Months Ended
Dec. 31, 2023
Related Party Transactions [Abstract]  
Related Party Transactions
5.    RELATED PARTY TRANSACTIONS
Vornado
As of December 31, 2023, Vornado owned 32.4% of our outstanding common stock. We are managed by, and our properties are leased and developed by, Vornado, pursuant to the agreements described below, which expire in March of each year and are automatically renewable.
Steven Roth is the Chairman of our Board of Directors and Chief Executive Officer, the Managing General Partner of Interstate Properties (“Interstate”), a New Jersey general partnership, and the Chairman of the Board of Trustees and Chief Executive Officer of Vornado. As of December 31, 2023, Mr. Roth, Interstate and its other two general partners, David Mandelbaum and Russell B. Wight, Jr. (who are also directors of the Company and trustees of Vornado) owned, in the aggregate, 26.0% of our outstanding common stock, in addition to the 2.3% they indirectly own through Vornado.
Management and Development Agreements
We pay Vornado an annual management fee equal to the sum of (i) $2,800,000, (ii) 2% of gross revenue from the Rego Park II shopping center, (iii) $0.50 per square foot of the tenant-occupied office and retail space at 731 Lexington Avenue, and (iv) $365,000, escalating at 3% per annum, for managing the common area of 731 Lexington Avenue.  Vornado is also entitled to a development fee equal to 6% of development costs, as defined.
Leasing and Other Agreements  
Vornado also provides us with leasing services for a fee of 3% of rent for the first ten years of a lease term, 2% of rent for the eleventh through the twentieth year of a lease term, and 1% of rent for the twenty-first through thirtieth year of a lease term, subject to the payment of rents by tenants.  In the event third-party real estate brokers are used, the fees to Vornado increase by 1% and Vornado is responsible for the fees to the third-party real estate brokers. 
Vornado is also entitled to a commission upon the sale of any of our assets equal to 3% of gross proceeds, as defined, for asset sales less than $50,000,000 and 1% of gross proceeds, as defined, for asset sales of $50,000,000 or more.
We also have agreements with Building Maintenance Services, a wholly owned subsidiary of Vornado, to supervise (i) cleaning, engineering and security services at our Lexington Avenue property and (ii) security services at our Rego Park I and Rego Park II properties and The Alexander apartment tower. In addition, we have an agreement with a wholly owned subsidiary of Vornado to manage the parking garages at our Rego Park I and Rego Park II properties.
The following is a summary of fees earned by Vornado under the various agreements discussed above.
 Year Ended December 31,
(Amounts in thousands)202320222021
Company management fees$2,800 $2,800 $2,800 
Development fees— 141 
Leasing fees1,213 1,378 1,800 
Commissions on sales of real estate711 — 1,050 
Property management, cleaning, engineering, parking and security fees6,005 5,912 5,540 
 $10,729 $10,093 $11,331 
As of December 31, 2023, the amounts due to Vornado were $646,000 for management, property management, cleaning, engineering and security fees and $69,000 for leasing fees. As of December 31, 2022, the amounts due to Vornado were $742,000 for management, property management, cleaning, engineering and security fees and $59,000 for leasing fees.
v3.24.0.1
Mortgages Payable
12 Months Ended
Dec. 31, 2023
Debt Disclosure [Abstract]  
Mortgages Payable MORTGAGES PAYABLE
On June 9, 2023, we exercised our remaining one-year extension option on the $500,000,000 interest-only mortgage loan on the office condominium of our 731 Lexington Avenue property. The interest rate on the loan remained at LIBOR plus 0.90% through July 15, 2023 and currently bears interest at the Prime Rate (8.50% as of December 31, 2023) through loan maturity on June 11, 2024. In June 2023, we purchased an interest rate cap for $11,258,000, which capped LIBOR at 6.00% through July 15, 2023 and caps the Prime Rate at 6.00% through loan maturity.
6. MORTGAGES PAYABLE - continued
The following is a summary of our outstanding mortgages payable. We may refinance our maturing debt as it comes due or choose to repay it.
 
   Interest Rate at December 31, 2023Balance at December 31,
(Amounts in thousands)Maturity20232022
First mortgages secured by:    
731 Lexington Avenue, office condominium(1)
Jun. 11, 20246.00%$500,000 $500,000 
731 Lexington Avenue, retail condominium(2)(3)
Aug. 05, 20251.76%300,000 300,000 
Rego Park II shopping center(2)(4)
Dec. 12, 20255.60%202,544 202,544 
The Alexander apartment towerNov. 01, 20272.63%94,000 94,000 
Total 1,096,544 1,096,544 
Deferred debt issuance costs, net of accumulated amortization of $17,639 and $16,071, respectively
 (3,993)(5,493)
   $1,092,551 $1,091,051 
(1)
Interest at the Prime Rate (capped at 6.00% through loan maturity).

(2)Interest rate listed represents the rate in effect as of December 31, 2023 based on SOFR as of contractual reset date plus contractual spread, adjusted for hedging instruments as applicable.
(3)
Interest at SOFR plus 1.51% which was swapped to a fixed rate of 1.76% through May 2025.
(4)
Interest at SOFR plus 1.45% (SOFR is capped at a rate of 4.15% through November 2024).

The net carrying value of real estate collateralizing the debt amounted to $594,681,000 as of December 31, 2023. Our existing financing documents contain covenants that limit our ability to incur additional indebtedness on these properties, and in certain circumstances, provide for lender approval of tenants’ leases and yield maintenance to prepay them. As of December 31, 2023, the principal repayments (based on the extended loan maturity dates) for the next five years and thereafter are as follows:
 
(Amounts in thousands) 
Year Ending December 31,Amount
2024$500,000 
2025502,544 
2026— 
202794,000 
2028— 
Thereafter— 
v3.24.0.1
Marketable Securities
12 Months Ended
Dec. 31, 2023
Marketable Securities [Abstract]  
Marketable Securities MARKETABLE SECURITIES
In December 2021, we sold our 564,612 common shares of The Macerich Company (“Macerich”), realizing cash proceeds of $9,506,000. These shares were received in connection with the sale of Kings Plaza Regional Shopping Center (“Kings Plaza”) to Macerich in 2012. The gains and losses resulting from the mark-to-market of these securities during 2021 were presented as “change in fair value of marketable securities” on our consolidated statement of income.
v3.24.0.1
Discontinued Operations
12 Months Ended
Dec. 31, 2023
Discontinued Operations and Disposal Groups [Abstract]  
Discontinued Operation DISCONTINUED OPERATIONS
In 2012, when we sold Kings Plaza to Macerich, $2,348,000 of the financial statement gain was deferred since a portion of the sales price was received in Macerich common shares. In December 2021, we recognized the $2,348,000 gain upon the disposition of our Macerich common shares.
As the results related to Kings Plaza were previously classified as discontinued operations, we have classified the gain as “income from discontinued operations” on our consolidated statement of income for the year ended December 31, 2021 in accordance with the provisions of ASC Topic 360, Property, Plant and Equipment.
v3.24.0.1
Fair Value Measurements
12 Months Ended
Dec. 31, 2023
Fair Value Disclosures [Abstract]  
Fair Value Measurements FAIR VALUE MEASUREMENTS
ASC Topic 820, Fair Value Measurement (“ASC 820”) defines fair value and establishes a framework for measuring fair value. ASC 820 establishes a fair value hierarchy that prioritizes observable and unobservable inputs used to measure fair value into three levels: Level 1 – quoted prices (unadjusted) in active markets that are accessible at the measurement date for assets or liabilities as well as certain U.S. Treasury securities that are highly liquid and are actively traded in secondary markets; Level 2 – observable prices that are based on inputs not quoted in active markets, but corroborated by market data; and Level 3 – unobservable inputs that are used when little or no market data is available.  The fair value hierarchy gives the highest priority to Level 1 inputs and the lowest priority to Level 3 inputs. In determining fair value, we utilize valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible as well as consider counterparty credit risk in our assessment of fair value.  
 
Financial Assets and Liabilities Measured at Fair Value
 Financial assets measured at fair value on our consolidated balance sheet as of December 31, 2023 consist of interest rate derivatives, which are presented in the table below based on their level in the fair value hierarchy. There were no financial liabilities measured at fair value as of December 31, 2023. 
 As of December 31, 2023
(Amounts in thousands)TotalLevel 1Level 2Level 3
Interest rate derivatives (included in other assets)$22,608 $— $22,608 $— 
Financial assets measured at fair value on our consolidated balance sheet as of December 31, 2022 consist of U.S. Treasury bills (classified as available for-sale) and interest rate derivatives, which are presented in the table below based on their level in the fair value hierarchy. There were no financial liabilities measured at fair value as of December 31, 2022.
 As of December 31, 2022
(Amounts in thousands)TotalLevel 1Level 2Level 3
Investments in U.S. Treasury bills$266,963 $266,963 $— $— 
Interest rate derivatives (included in other assets)29,351 — 29,351 — 
$296,314 $266,963 $29,351 $— 
Interest Rate Derivatives
We recognize the fair value of all interest rate derivatives in “other assets” or “other liabilities” on our consolidated balance sheets and since all of our interest rate derivatives have been designated as cash flow hedges, changes in the fair value are recognized in other comprehensive income. The table below summarizes our interest rate derivatives, all of which hedge the interest rate risk attributable to the variable rate debt noted as of December 31, 2023 and 2022, respectively.
 Fair Value Asset as of December 31,As of December 31, 2023
(Amounts in thousands)20232022Notional AmountSwapped RateExpiration Date
Interest rate swap related to:
731 Lexington Avenue mortgage loan, retail condominium$16,315 $26,718 $300,000 1.76%5/25
Interest rate caps related to:
Rego Park II shopping center mortgage loan1,370 2,622 202,544 (1)11/24
731 Lexington Avenue mortgage loan, office condominium4,923 11 500,000 (2)06/24
Included in other assets$22,608 $29,351 
(1)
SOFR cap strike rate of 4.15%.
(2)
In June 2023, we purchased an interest rate cap for $11,258, which capped LIBOR at 6.00% through July 15, 2023 and caps the Prime Rate (8.50% as of December 31, 2023) at 6.00% through loan maturity. See Note 6 - Mortgages Payable for further information.
9. FAIR VALUE MEASUREMENTS - continued
Financial Assets and Liabilities not Measured at Fair Value
Financial assets and liabilities that are not measured at fair value on our consolidated balance sheets include cash equivalents and mortgages payable. Cash equivalents are carried at cost, which approximates fair value due to their short-term maturities and are classified as Level 1. The fair value of our mortgages payable is calculated by discounting the future contractual cash flows of these instruments using current risk-adjusted rates available to borrowers with similar credit ratings, which are provided by a third-party specialist, and is classified as Level 2. The table below summarizes the carrying amount and fair value of these financial instruments as of December 31, 2023 and 2022.
 
 As of December 31, 2023As of December 31, 2022
 CarryingFairCarryingFair
(Amounts in thousands)AmountValueAmountValue
Assets:    
Cash equivalents$363,535 $363,535 $47,852 $47,852 
Liabilities:
Mortgages payable (excluding deferred debt issuance costs, net)$1,096,544 $1,071,887 $1,096,544 $1,061,221 
v3.24.0.1
Leases
12 Months Ended
Dec. 31, 2023
Leases [Abstract]  
Leases LEASES
As Lessor
We lease space to tenants under operating leases in an office building and in retail centers.  The rental terms range from approximately 5 to 25 years.  The leases provide for the payment of fixed base rents payable monthly in advance as well as reimbursements of real estate taxes, insurance and maintenance costs.  Retail leases may also provide for the payment by the lessee of additional rents based on a percentage of their sales. We also lease residential space at The Alexander apartment tower which generally have a 1 or 2 year lease terms.
Future undiscounted cash flows under our contractual non-cancelable operating leases are as follows:
(Amounts in thousands)As of December 31, 2023
For the year ending December 31,
2024$157,833 
2025129,407 
2026125,014 
2027122,495 
2028130,203 
Thereafter190,503 
 
These amounts do not include reimbursements or additional rents based on a percentage of retail tenants’ sales.

Bloomberg accounted for revenue of $120,351,000, $115,129,000, and $113,140,000 in the years ended December 31, 2023, 2022 and 2021, respectively, representing approximately 54%, 56% and 55% of our rental revenues in each year, respectively. No other tenant accounted for more than 10% of our rental revenues. If we were to lose Bloomberg as a tenant, or if Bloomberg were to be unable to fulfill its obligations under its lease, it would adversely affect our results of operations and financial condition. In order to assist us in our continuing assessment of Bloomberg’s creditworthiness, we receive certain confidential financial information and metrics from Bloomberg. In addition, we access and evaluate financial information regarding Bloomberg from other private sources, as well as publicly available data.
10. LEASES - continued
As Lessee
We are the lessee under a ground lease at our Flushing property, classified as an operating lease, which expires in 2027 and has one 10-year extension option. In January 2022, New World Mall LLC, the subtenant at the property, exercised its one remaining 10-year extension option through January 2037. As a result of the subtenant exercising its extension option, we were required by GAAP to remeasure our ground lease liability based upon an estimate of lease payments to be made during the 10-year extension period of our ground lease resulting in an incremental right-of-use asset and lease liability of approximately $16,000,000. The discount rate applied in the remeasurement of the lease liability was based on the incremental borrowing rate (“IBR”) of 5.86% at the time of the remeasurement. We considered the general economic environment and factored in various Company specific adjustments to arrive at the IBR. As of December 31, 2023, the remaining right-of-use asset of $17,522,000 and lease liability of $20,452,000, are included in “other assets” and “other liabilities,” respectively, on our consolidated balance sheet.
Future lease payments under this operating lease, including our estimated payments during the extension period, are as follows:
(Amounts in thousands)As of December 31, 2023
For the year ending December 31,
2024$800 
2025800 
2026800 
20272,707 
20282,880 
Thereafter23,280 
Total undiscounted cash flows31,267 
Present value discount(10,815)
Lease liability as of December 31, 2023$20,452 
We recognize rent expense as a component of “operating” expenses on our consolidated statements of income on a straight-line basis. Rent expense was $2,161,000, $2,161,000 and $746,000 in each of the years ended December 31, 2023, 2022 and 2021, respectively. Cash paid for rent expense was $800,000 in each of the years ended December 31, 2023, 2022 and 2021, respectively.
Leases LEASES
As Lessor
We lease space to tenants under operating leases in an office building and in retail centers.  The rental terms range from approximately 5 to 25 years.  The leases provide for the payment of fixed base rents payable monthly in advance as well as reimbursements of real estate taxes, insurance and maintenance costs.  Retail leases may also provide for the payment by the lessee of additional rents based on a percentage of their sales. We also lease residential space at The Alexander apartment tower which generally have a 1 or 2 year lease terms.
Future undiscounted cash flows under our contractual non-cancelable operating leases are as follows:
(Amounts in thousands)As of December 31, 2023
For the year ending December 31,
2024$157,833 
2025129,407 
2026125,014 
2027122,495 
2028130,203 
Thereafter190,503 
 
These amounts do not include reimbursements or additional rents based on a percentage of retail tenants’ sales.

Bloomberg accounted for revenue of $120,351,000, $115,129,000, and $113,140,000 in the years ended December 31, 2023, 2022 and 2021, respectively, representing approximately 54%, 56% and 55% of our rental revenues in each year, respectively. No other tenant accounted for more than 10% of our rental revenues. If we were to lose Bloomberg as a tenant, or if Bloomberg were to be unable to fulfill its obligations under its lease, it would adversely affect our results of operations and financial condition. In order to assist us in our continuing assessment of Bloomberg’s creditworthiness, we receive certain confidential financial information and metrics from Bloomberg. In addition, we access and evaluate financial information regarding Bloomberg from other private sources, as well as publicly available data.
10. LEASES - continued
As Lessee
We are the lessee under a ground lease at our Flushing property, classified as an operating lease, which expires in 2027 and has one 10-year extension option. In January 2022, New World Mall LLC, the subtenant at the property, exercised its one remaining 10-year extension option through January 2037. As a result of the subtenant exercising its extension option, we were required by GAAP to remeasure our ground lease liability based upon an estimate of lease payments to be made during the 10-year extension period of our ground lease resulting in an incremental right-of-use asset and lease liability of approximately $16,000,000. The discount rate applied in the remeasurement of the lease liability was based on the incremental borrowing rate (“IBR”) of 5.86% at the time of the remeasurement. We considered the general economic environment and factored in various Company specific adjustments to arrive at the IBR. As of December 31, 2023, the remaining right-of-use asset of $17,522,000 and lease liability of $20,452,000, are included in “other assets” and “other liabilities,” respectively, on our consolidated balance sheet.
Future lease payments under this operating lease, including our estimated payments during the extension period, are as follows:
(Amounts in thousands)As of December 31, 2023
For the year ending December 31,
2024$800 
2025800 
2026800 
20272,707 
20282,880 
Thereafter23,280 
Total undiscounted cash flows31,267 
Present value discount(10,815)
Lease liability as of December 31, 2023$20,452 
We recognize rent expense as a component of “operating” expenses on our consolidated statements of income on a straight-line basis. Rent expense was $2,161,000, $2,161,000 and $746,000 in each of the years ended December 31, 2023, 2022 and 2021, respectively. Cash paid for rent expense was $800,000 in each of the years ended December 31, 2023, 2022 and 2021, respectively.
v3.24.0.1
Stock-Based Compensation
12 Months Ended
Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]  
Stock-Based Compensation STOCK-BASED COMPENSATION
We account for stock-based compensation in accordance with ASC Topic 718, Compensation – Stock Compensation (“ASC 718”). Our 2016 Omnibus Stock Plan (the “Plan”) provides for grants of incentive and non-qualified stock options, restricted stock, stock appreciation rights, deferred stock units (“DSUs”) and performance shares, as defined, to the directors, officers and employees of the Company and Vornado.
In May 2023, we granted each of the members of our Board of Directors 449 DSUs with a market value of $75,000 per grant. The grant date fair value of these awards was $56,250 per grant, or $450,000 in the aggregate, in accordance with ASC 718. The DSUs entitle the holders to receive shares of the Company’s common stock without the payment of any consideration. The DSUs vested immediately and accordingly, were expensed on the date of grant, but the shares of common stock underlying the DSUs are not deliverable to the grantee until the grantee is no longer serving on the Company’s Board of Directors. As of December 31, 2023, there were 23,388 DSUs outstanding and 482,399 shares were available for future grant under the Plan.
v3.24.0.1
Commitments and Contingencies
12 Months Ended
Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies COMMITMENTS AND CONTINGENCIES
Insurance
We maintain general liability insurance with limits of $300,000,000 per occurrence and per property, of which the first $30,000,000 includes communicable disease coverage, and all-risk property and rental value insurance coverage with limits of $1.7 billion per occurrence, including coverage for acts of terrorism, with sub-limits for certain perils such as floods and earthquakes on each of our properties and excluding communicable disease coverage.
Fifty Ninth Street Insurance Company, LLC (“FNSIC”), our wholly owned consolidated subsidiary, acts as a direct insurer for coverage for acts of terrorism, including nuclear, biological, chemical and radiological (“NBCR”) acts, as defined by the Terrorism Risk Insurance Act of 2002, as amended to date and which has been extended through December 2027. Coverage for acts of terrorism (including NBCR acts) is up to $1.7 billion per occurrence and in the aggregate. Coverage for acts of terrorism (excluding NBCR acts) is fully reinsured by third party insurance companies and the Federal government with no exposure to FNSIC. For NBCR acts, FNSIC is responsible for a $316,000 deductible and 20% of the balance of a covered loss, and the Federal government is responsible for the remaining 80% of a covered loss. We are ultimately responsible for any loss incurred by FNSIC.
We continue to monitor the state of the insurance market and the scope and costs of coverage for acts of terrorism or other events. However, we cannot anticipate what coverage will be available on commercially reasonable terms in the future. We are responsible for uninsured losses and for deductibles and losses in excess of our insurance coverage, which could be material.
Our loans contain customary covenants requiring us to maintain insurance. Although we believe that we have adequate insurance coverage for purposes of these agreements, we may not be able to obtain an equivalent amount of coverage at reasonable costs in the future. If lenders insist on greater coverage than we are able to obtain, it could adversely affect our ability to finance or refinance our properties.
Letters of Credit
Approximately $900,000 of standby letters of credit were issued and outstanding as of December 31, 2023.
 
Other
There are various legal actions brought against us from time-to-time in the ordinary course of business. In our opinion, the outcome of such pending matters in the aggregate will not have a material effect on our financial position, results of operations or cash flows.
v3.24.0.1
Multiemployer Benefit Plans
12 Months Ended
Dec. 31, 2023
Multiemployer Plan, Pension, Significant [Abstract]  
Multiemployer Benefit Plans MULTIEMPLOYER BENEFIT PLANS
Our subsidiaries make contributions to certain multiemployer defined benefit plans (“Multiemployer Pension Plans”) and health plans (“Multiemployer Health Plans”) for our union represented employees, pursuant to the respective collective bargaining agreements.
Multiemployer Pension Plans
Multiemployer Pension Plans differ from single-employer pension plans in that (i) contributions to multiemployer plans may be used to provide benefits to employees of other participating employers and (ii) if other participating employers fail to make their contributions, each of our subsidiaries may be required to bear their pro rata share of unfunded obligations. If a participating subsidiary withdraws from a plan in which it participates, it may be subject to a withdrawal liability. As of December 31, 2023, our subsidiaries’ participation in these plans were not significant to our consolidated financial statements.
 In the years ended December 31, 2023, 2022 and 2021 our subsidiaries contributed $215,000, $178,000 and $217,000, respectively, towards Multiemployer Pension Plans. Our subsidiaries’ contributions did not represent more than 5% of total employer contributions in any of these plans for the years ended December 31, 2023, 2022 and 2021.
Multiemployer Health Plans
 Multiemployer Health Plans in which our subsidiaries participate provide health benefits to eligible active and retired employees.  In the years ended December 31, 2023, 2022 and 2021 our subsidiaries contributed $1,005,000, $839,000 and $748,000, respectively, towards these plans.
v3.24.0.1
Earnings Per Share
12 Months Ended
Dec. 31, 2023
Earnings Per Share [Abstract]  
Earnings Per Share EARNINGS PER SHARE
The following table sets forth the computation of basic and diluted income per share, including a reconciliation of net income and the number of shares used in computing basic and diluted income per share.  Basic income per share is determined using the weighted average shares of common stock (including DSUs) outstanding during the period. Diluted income per share is determined using the weighted average shares of common stock (including DSUs) outstanding during the period, and assumes all potentially dilutive securities were converted into common shares at the earliest date possible. There were no potentially dilutive securities outstanding during the years ended December 31, 2023, 2022 and 2021.
 
 Year Ended December 31,
(Amounts in thousands, except share and per share amounts)202320222021
Income from continuing operations$102,413 $57,632 $130,582 
Income from discontinued operations (see Note 8)— — 2,348 
Net income$102,413 $57,632 $132,930 
Weighted average shares outstanding – basic and diluted5,129,330 5,126,100 5,123,613 
Income from continuing operations$19.97 $11.24 $25.48 
Income from discontinued operations (see Note 8)— — 0.46 
Net income per common share – basic and diluted$19.97 $11.24 $25.94 
v3.24.0.1
Schedule III: Real Estate and Accumulated Depreciation
12 Months Ended
Dec. 31, 2023
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract]  
Schedule III: Real Estate and Accumulated Depreciation
ALEXANDER’S, INC. AND SUBSIDIARIES
SCHEDULE III
REAL ESTATE AND ACCUMULATED DEPRECIATION
December 31, 2023
(Amounts in thousands)
COLUMN ACOLUMN BCOLUMN CCOLUMN DCOLUMN ECOLUMN FCOLUMN GCOLUMN HCOLUMN I
    Gross Amount at Which   Life on which Depreciation in Latest Income Statement is Computed
  
Initial Cost to Company(1)
Costs
Capitalized
Subsequent
to Acquisition
Carried at Close of PeriodAccumulated
Depreciation
and
Amortization
  
   Buildings
and Leasehold
Improvements
 Buildings
and Leasehold
Improvements
Development
and
Construction
In Progress
   
     Date of
Construction
Date
Acquired(1)
Description
Encumbrances(2)
LandLand
Total(3)
Rego Park I$— $1,647 $8,953 $93,138 $1,647 $102,091 $— $103,738 $47,931 19591992
3-39 years
Rego Park II202,544 3,127 1,467 390,267 3,127 391,453 281 394,861 135,791 20091992
3-40 years
The Alexander apartment tower94,000 — — 115,074 — 115,074 — 115,074 27,036 20161992
3-39 years
Flushing— — 1,660 (107)— 1,553 — 1,553 1,324 
1975(4)
1992N/A
Lexington Avenue800,000 14,432 12,355 424,607 27,497 423,897 — 451,394 203,821 20031992
9-39 years
TOTAL$1,096,544 $19,206 $24,435 $1,022,979 $32,271 $1,034,068 $281 $1,066,620 $415,903  
 
(1) Initial cost is as of May 15, 1992 (the date on which the Company commenced its real estate operations).
(2) Excludes deferred debt issuance costs, net of $3,993.
(3) The net basis of the Company’s assets and liabilities for tax purposes is approximately $145,246 lower than the amount reported for financial statement purposes.
(4) Represents the date the lease was acquired.
ALEXANDER’S, INC. AND SUBSIDIARIES
SCHEDULE III
REAL ESTATE AND ACCUMULATED DEPRECIATION
(Amounts in thousands)
 December 31,
 202320222021
REAL ESTATE:   
Balance at beginning of period$1,084,598 $1,069,426 $1,071,043 
Additions during the period:
Land— — — 
Buildings and leasehold improvements2,959 15,002 5,842 
Development and construction in progress1,346 193 10,090 
 1,088,903 1,084,621 1,086,975 
Less:
Assets sold(14,186)— (11,921)
Assets written-off(8,097)(23)(5,628)
Balance at end of period$1,066,620 $1,084,598 $1,069,426 
ACCUMULATED DEPRECIATION:
Balance at beginning of period$396,268 $370,557 $350,122 
Depreciation expense28,137 25,734 26,063 
 424,405 396,291 376,185 
Less:
Accumulated depreciation on assets sold(405)— — 
Accumulated depreciation on assets written-off(8,097)(23)(5,628)
Balance at end of period$415,903 $396,268 $370,557 
v3.24.0.1
Summary of Significant Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2023
Accounting Policies [Abstract]  
Basis of Presentation The accompanying consolidated financial statements include our accounts and those of our consolidated subsidiaries.  All intercompany amounts have been eliminated. Our consolidated financial statements are prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”), which requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting periods.  Actual results could differ from those estimates.
Recently Issued Accounting Literature Recently Issued Accounting Literature - In March 2020, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2020-04 establishing Accounting Standards Codification (“ASC”) Topic 848, Reference Rate Reform, and in January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848): Scope (collectively, “ASC 848”). ASC 848 contains practical expedients for reference rate reform related activities that impact debt, leases, derivatives and other contracts. The guidance in ASC 848 is optional and may be elected over time as reference rate reform activities occur. We have elected to apply the hedge accounting expedients related to probability and the assessments of effectiveness for future LIBOR-indexed cash flows to assume that the index upon which future hedged transactions will be based matches the index on the corresponding derivatives. Application of these expedients preserves the presentation of derivatives consistent with past presentation. In December 2022, the FASB issued ASU 2022-06, Deferral of the Sunset Date of Topic 848 (“ASU 2022-06”), which was issued to defer the sunset date of ASC 848 to December 31, 2024. ASU 2022-06 is effective immediately for all companies. As of December 31, 2023, we have transitioned all of our LIBOR-indexed debt and derivatives and, for our derivatives in hedge accounting relationships, utilized the elective relief in ASC 848, allowing for the continuation of hedge accounting through the transition process.
In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures (“ASU 2023-07”). ASU 2023-07 aims to improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. ASU 2023-07 requires disclosure of significant segment expenses that are regularly provided to the chief operating decision maker and included within each reported measure of segment profit or loss. The update also requires disclosure regarding the chief operating decision maker and expands the interim segment disclosure requirements. ASU 2023-07 is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. We are currently evaluating the impact of ASU 2023-07 on our consolidated financial statements.
In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures (“ASU 2023-09”). ASU 2023-09 requires entities to disclose additional information with respect to the effective tax rate reconciliation and to disclose the disaggregation by jurisdiction of income tax expense and income taxes paid. ASU 2023-09 is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. We are currently evaluating the impact of ASU 2023-09 on our consolidated financial statements.
Real Estate Real estate is carried at cost, net of accumulated depreciation and amortization.  As of December 31, 2023 and 2022, the carrying amount of our real estate, net of accumulated depreciation and amortization, was $650,717,000 and $688,330,000, respectively.  Maintenance and repairs are generally expensed as incurred.  Depreciation requires an estimate by management of the useful life of each property and improvement as well as an allocation of the costs associated with a property to its various components. We capitalize all property operating expenses directly associated with and attributable to, the development and construction of a project, including interest expense. The capitalization period begins when development activities are underway and ends when it is determined that the asset is substantially complete and ready for its intended use, which is typically evidenced by the receipt of a temporary certificate of occupancy. General and administrative costs are expensed as incurred.
  Our properties are individually reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable.  An impairment exists when the carrying amount of an asset exceeds the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset, including an estimated terminal value calculated using an appropriate capitalization rate.  Estimates of future cash flows are based on our current plans, intended holding periods and available market information at the time the analyses are prepared.  For our development properties, estimates of future cash flows also include all future expenditures necessary to develop the asset, including interest payments that will be capitalized as part of the cost of the asset. An impairment loss is recognized only if the carrying amount of the asset is not recoverable and is measured based on the excess of the property’s carrying amount over its estimated fair value.  If our estimates of future cash flows, anticipated holding periods, or fair values change, based on market conditions or otherwise, our evaluation of impairment charges may be different and such differences could be material to our consolidated financial statements.  Estimates of future cash flows are subjective and are based, in part, on assumptions regarding future occupancy, rental rates and capital requirements that could differ materially from actual results.  Plans to hold properties over longer periods decrease the likelihood of recording impairment losses.
Revenue Recognition Rental revenues include revenues from the leasing of space at our properties to tenants, tenant services and parking garage revenues.We have the following revenue recognition policies:
Revenues from the leasing of space at our properties to tenants include (i) lease components, including fixed and variable lease payments, and nonlease components which include reimbursement of common area maintenance expenses, and (ii) reimbursement of real estate taxes and insurance expenses. As lessor, we have elected to combine the lease and nonlease components of our operating lease agreements and account for the components as a single lease component in accordance with ASC Topic 842, Leases (“ASC 842”).
Revenues from fixed lease payments for operating leases are recognized on a straight-line basis over the non-cancelable term of the lease, together with renewal options that are reasonably certain of being exercised. We commence revenue recognition when the tenant takes possession of the leased space and the leased space is substantially ready for its intended use.
Revenues derived from the reimbursement of real estate taxes, insurance expenses and common area maintenance expenses are generally recognized in the same period as the related expenses are incurred.
Revenues derived from sub-metered electric, elevator, trash removal and other services provided to our tenants at their request are recognized as the services are transferred in accordance with ASC Topic 606, Revenue from Contracts with Customers ("ASC 606").
Revenues derived from the operations of our parking facilities, which charge hourly or monthly fees to provide parking services to customers, are recognized as the services are transferred in accordance with ASC 606.
We evaluate on an individual lease basis whether it is probable that we will collect substantially all amounts due from our tenants and recognize changes in the collectability assessment of our operating leases as adjustments to rental revenue. Management exercises judgment in assessing collectability of tenant receivables and considers payment history, current credit status and publicly available information about the financial condition of the tenant, and other factors. Tenant receivables, including receivables arising from the straight-lining of rents, are written off when management deems that the collectability of substantially all future lease payments from a specific lease is not probable of collection, at which point, the Company will limit future rental revenues to cash received.
Cash and Cash Equivalents Cash and cash equivalents consist of highly liquid investments with original maturities of three months or less when purchased and are carried at cost, which approximates fair value, due to their short-term maturities.  The majority of our cash and cash equivalents consist of (i) deposits at major commercial banks, which may at times exceed the Federal Deposit Insurance Corporation limit, (ii) money market funds, which invest in U.S. Treasury bills and (iii) certificates of deposit placed through an account registry service (“CDARS”). To date we have not experienced any losses on our invested cash.
Restricted Cash Restricted cash primarily consists of security deposits and other cash escrowed under loan and interest rate derivative agreements, including for debt service, real estate taxes, property insurance and capital improvements.
Investments in U.S Treasury Bills Treasury bills are short-term debt obligations with maturities of one year or less backed by the U.S. Treasury Department. Treasury bills yield no interest, but are issued at a discount on their redemption prices. We classify our investments in U.S. Treasury bills as available-for-sale debt investments, recorded at fair value with any changes in fair value during the period recorded in other comprehensive income. These investments are considered Level 1 within the fair value hierarchy as they are highly liquid and are traded in an active secondary market. We use quoted market prices to determine the fair value of our investments in U.S. Treasury bills.
Deferred Charges Direct financing costs are deferred and amortized over the terms of the related agreements as a component of interest and debt expense.  Direct and incremental costs related to successful leasing activities are capitalized and amortized on a straight-line basis over the lives of the related leases.  All other deferred charges are amortized on a straight-line basis, which approximates the effective interest rate method, in accordance with the terms of the agreements to which they relate.
Income Taxes We operate in a manner intended to enable us to continue to qualify as a REIT under Sections 856 – 860 of the Internal Revenue Code of 1986, as amended (the “Code”).  In order to maintain our qualification as a REIT under the Code, we must distribute at least 90% of our taxable income to stockholders each year. We distribute to our stockholders 100% of our taxable income and therefore, no provision for Federal income taxes is required. Dividends distributed for the year ended December 31, 2023 were characterized, for federal income tax purposes, as 41.5% ordinary income and 58.5% of long-term capital gain income. Dividends distributed for the year ended December 31, 2022 were characterized, for federal income tax purposes, as 100% ordinary income. Dividends distributed for the year ended December 31, 2021 were characterized, for federal income tax purposes, as 58.3% ordinary income and 41.7% of long-term capital gain income.
Fair Value Measurements ASC Topic 820, Fair Value Measurement (“ASC 820”) defines fair value and establishes a framework for measuring fair value. ASC 820 establishes a fair value hierarchy that prioritizes observable and unobservable inputs used to measure fair value into three levels: Level 1 – quoted prices (unadjusted) in active markets that are accessible at the measurement date for assets or liabilities as well as certain U.S. Treasury securities that are highly liquid and are actively traded in secondary markets; Level 2 – observable prices that are based on inputs not quoted in active markets, but corroborated by market data; and Level 3 – unobservable inputs that are used when little or no market data is available.  The fair value hierarchy gives the highest priority to Level 1 inputs and the lowest priority to Level 3 inputs. In determining fair value, we utilize valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible as well as consider counterparty credit risk in our assessment of fair value.
Stock-based Compensation
We account for stock-based compensation in accordance with ASC Topic 718, Compensation – Stock Compensation (“ASC 718”). Our 2016 Omnibus Stock Plan (the “Plan”) provides for grants of incentive and non-qualified stock options, restricted stock, stock appreciation rights, deferred stock units (“DSUs”) and performance shares, as defined, to the directors, officers and employees of the Company and Vornado.
v3.24.0.1
Revenue Recognition (Tables)
12 Months Ended
Dec. 31, 2023
Revenue from Contract with Customer [Abstract]  
Summary of Revenue Sources
The following is a summary of revenue sources for the years ended December 31, 2023, 2022 and 2021.
Year Ended December 31,
(Amounts in thousands)202320222021
Lease revenues$216,468 $197,230 $198,109 
Parking revenue4,456 4,897 4,407 
Tenant services4,038 3,687 3,632 
Rental revenues$224,962 $205,814 $206,148 
Components of lease Revenues
The components of lease revenues for the years ended December 31, 2023, 2022 and 2021 are as follows:
Year Ended December 31,
(Amounts in thousands)202320222021
Fixed lease revenues$147,569 $135,668 $129,509 
Variable lease revenues68,899 61,562 68,600 
Lease revenues$216,468 $197,230 $198,109 
v3.24.0.1
Related Party Transactions (Tables)
12 Months Ended
Dec. 31, 2023
Related Party Transactions [Abstract]  
Summary of Fees to Vornado
The following is a summary of fees earned by Vornado under the various agreements discussed above.
 Year Ended December 31,
(Amounts in thousands)202320222021
Company management fees$2,800 $2,800 $2,800 
Development fees— 141 
Leasing fees1,213 1,378 1,800 
Commissions on sales of real estate711 — 1,050 
Property management, cleaning, engineering, parking and security fees6,005 5,912 5,540 
 $10,729 $10,093 $11,331 
v3.24.0.1
Mortgages Payable (Tables)
12 Months Ended
Dec. 31, 2023
Debt Disclosure [Abstract]  
Schedule of Outstanding Mortgages Payable
The following is a summary of our outstanding mortgages payable. We may refinance our maturing debt as it comes due or choose to repay it.
 
   Interest Rate at December 31, 2023Balance at December 31,
(Amounts in thousands)Maturity20232022
First mortgages secured by:    
731 Lexington Avenue, office condominium(1)
Jun. 11, 20246.00%$500,000 $500,000 
731 Lexington Avenue, retail condominium(2)(3)
Aug. 05, 20251.76%300,000 300,000 
Rego Park II shopping center(2)(4)
Dec. 12, 20255.60%202,544 202,544 
The Alexander apartment towerNov. 01, 20272.63%94,000 94,000 
Total 1,096,544 1,096,544 
Deferred debt issuance costs, net of accumulated amortization of $17,639 and $16,071, respectively
 (3,993)(5,493)
   $1,092,551 $1,091,051 
(1)
Interest at the Prime Rate (capped at 6.00% through loan maturity).

(2)Interest rate listed represents the rate in effect as of December 31, 2023 based on SOFR as of contractual reset date plus contractual spread, adjusted for hedging instruments as applicable.
(3)
Interest at SOFR plus 1.51% which was swapped to a fixed rate of 1.76% through May 2025.
(4)
Interest at SOFR plus 1.45% (SOFR is capped at a rate of 4.15% through November 2024).
Schedule of Principal Repayments As of December 31, 2023, the principal repayments (based on the extended loan maturity dates) for the next five years and thereafter are as follows:
 
(Amounts in thousands) 
Year Ending December 31,Amount
2024$500,000 
2025502,544 
2026— 
202794,000 
2028— 
Thereafter— 
v3.24.0.1
Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2023
Fair Value Disclosures [Abstract]  
Schedule of Financial Assets Measured at Fair Value Financial assets measured at fair value on our consolidated balance sheet as of December 31, 2023 consist of interest rate derivatives, which are presented in the table below based on their level in the fair value hierarchy. There were no financial liabilities measured at fair value as of December 31, 2023. 
 As of December 31, 2023
(Amounts in thousands)TotalLevel 1Level 2Level 3
Interest rate derivatives (included in other assets)$22,608 $— $22,608 $— 
Financial assets measured at fair value on our consolidated balance sheet as of December 31, 2022 consist of U.S. Treasury bills (classified as available for-sale) and interest rate derivatives, which are presented in the table below based on their level in the fair value hierarchy. There were no financial liabilities measured at fair value as of December 31, 2022.
 As of December 31, 2022
(Amounts in thousands)TotalLevel 1Level 2Level 3
Investments in U.S. Treasury bills$266,963 $266,963 $— $— 
Interest rate derivatives (included in other assets)29,351 — 29,351 — 
$296,314 $266,963 $29,351 $— 
Schedule of Interest Rate Derivatives The table below summarizes our interest rate derivatives, all of which hedge the interest rate risk attributable to the variable rate debt noted as of December 31, 2023 and 2022, respectively.
 Fair Value Asset as of December 31,As of December 31, 2023
(Amounts in thousands)20232022Notional AmountSwapped RateExpiration Date
Interest rate swap related to:
731 Lexington Avenue mortgage loan, retail condominium$16,315 $26,718 $300,000 1.76%5/25
Interest rate caps related to:
Rego Park II shopping center mortgage loan1,370 2,622 202,544 (1)11/24
731 Lexington Avenue mortgage loan, office condominium4,923 11 500,000 (2)06/24
Included in other assets$22,608 $29,351 
(1)
SOFR cap strike rate of 4.15%.
(2)
In June 2023, we purchased an interest rate cap for $11,258, which capped LIBOR at 6.00% through July 15, 2023 and caps the Prime Rate (8.50% as of December 31, 2023) at 6.00% through loan maturity. See Note 6 - Mortgages Payable for further information.
Summary of Carrying Amount and Fair Value of Financial Instruments The table below summarizes the carrying amount and fair value of these financial instruments as of December 31, 2023 and 2022.
 
 As of December 31, 2023As of December 31, 2022
 CarryingFairCarryingFair
(Amounts in thousands)AmountValueAmountValue
Assets:    
Cash equivalents$363,535 $363,535 $47,852 $47,852 
Liabilities:
Mortgages payable (excluding deferred debt issuance costs, net)$1,096,544 $1,071,887 $1,096,544 $1,061,221 
v3.24.0.1
Leases (Tables)
12 Months Ended
Dec. 31, 2023
Leases [Abstract]  
Future Undiscounted Cash Flows for Operating Leases
Future undiscounted cash flows under our contractual non-cancelable operating leases are as follows:
(Amounts in thousands)As of December 31, 2023
For the year ending December 31,
2024$157,833 
2025129,407 
2026125,014 
2027122,495 
2028130,203 
Thereafter190,503 
Future Lease Payments for Operating Lease
Future lease payments under this operating lease, including our estimated payments during the extension period, are as follows:
(Amounts in thousands)As of December 31, 2023
For the year ending December 31,
2024$800 
2025800 
2026800 
20272,707 
20282,880 
Thereafter23,280 
Total undiscounted cash flows31,267 
Present value discount(10,815)
Lease liability as of December 31, 2023$20,452 
v3.24.0.1
Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2023
Earnings Per Share [Abstract]  
Schedule of Basic and Diluted Income Per Share
The following table sets forth the computation of basic and diluted income per share, including a reconciliation of net income and the number of shares used in computing basic and diluted income per share.  Basic income per share is determined using the weighted average shares of common stock (including DSUs) outstanding during the period. Diluted income per share is determined using the weighted average shares of common stock (including DSUs) outstanding during the period, and assumes all potentially dilutive securities were converted into common shares at the earliest date possible. There were no potentially dilutive securities outstanding during the years ended December 31, 2023, 2022 and 2021.
 
 Year Ended December 31,
(Amounts in thousands, except share and per share amounts)202320222021
Income from continuing operations$102,413 $57,632 $130,582 
Income from discontinued operations (see Note 8)— — 2,348 
Net income$102,413 $57,632 $132,930 
Weighted average shares outstanding – basic and diluted5,129,330 5,126,100 5,123,613 
Income from continuing operations$19.97 $11.24 $25.48 
Income from discontinued operations (see Note 8)— — 0.46 
Net income per common share – basic and diluted$19.97 $11.24 $25.94 
v3.24.0.1
Organization (Details)
ft² in Thousands, $ in Millions
12 Months Ended
Sep. 27, 2023
USD ($)
Dec. 03, 2022
USD ($)
ft²
Dec. 31, 2023
ft²
segment
property
unit
extension
Operating Properties      
Number of properties | property     5
Number of segments | segment     1
731 Lexington Avenue      
Operating Properties      
Area of property (in square feet)     1,079
731 Lexington Avenue | Office space      
Operating Properties      
Area of property (in square feet)     939
731 Lexington Avenue | Retail space      
Operating Properties      
Area of property (in square feet)     140
731 Lexington Avenue | Retail space | Tenant Occupant | Home Depot      
Operating Properties      
Area of property (in square feet)     83
Rego Park I      
Operating Properties      
Area of property (in square feet)     338
Rego Park I | IKEA      
Operating Properties      
Area of property (in square feet)   112  
Payment for termination of lease | $ $ 10 $ 10  
Rego Park I | Burlington Coat Factory      
Operating Properties      
Area of property (in square feet)     50
Rego Park I | Marshalls      
Operating Properties      
Area of property (in square feet)     36
Rego Park II      
Operating Properties      
Area of property (in square feet)     616
Rego Park II | Costco      
Operating Properties      
Area of property (in square feet)     145
Rego Park II | Kohl's      
Operating Properties      
Area of property (in square feet)     133
Flushing      
Operating Properties      
Area of property (in square feet)     167
Number of extensions | extension     1
Length of extension     10 years
The Alexander apartment tower      
Operating Properties      
Area of property (in square feet)     255
Number of property units | unit     312
v3.24.0.1
Summary of Significant Accounting Policies - Real Estate (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Accounting Policies [Abstract]    
Real estate, net $ 650,717 $ 688,330
v3.24.0.1
Summary of Significant Accounting Policies - Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Tax Treatment Of Dividend      
Internal taxable income distribution policy (in percentage) 100.00%    
Estimated taxable income net $ 98,555 $ 64,960 $ 101,184
Net basis difference of assets and liabilities between tax basis and GAAP basis $ 145,246    
Ordinary Income      
Tax Treatment Of Dividend      
Payments of dividends net percent 41.50% 100.00% 58.30%
Long Term Capital Gain      
Tax Treatment Of Dividend      
Payments of dividends net percent 58.50%   41.70%
v3.24.0.1
Revenue Recognition - Summary of Revenue Sources (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disaggregation of Revenue [Line Items]      
Lease revenues $ 216,468 $ 197,230 $ 198,109
Rental revenues 224,962 205,814 206,148
Parking revenue      
Disaggregation of Revenue [Line Items]      
Revenue from contract with customer 4,456 4,897 4,407
Tenant services      
Disaggregation of Revenue [Line Items]      
Revenue from contract with customer $ 4,038 $ 3,687 $ 3,632
v3.24.0.1
Revenue Recognition - Components of lease Revenues (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Revenue from Contract with Customer [Abstract]      
Fixed lease revenues $ 147,569 $ 135,668 $ 129,509
Variable lease revenues 68,899 61,562 68,600
Lease revenues $ 216,468 $ 197,230 $ 198,109
v3.24.0.1
Real Estate Sales (Details)
$ in Thousands
12 Months Ended
May 19, 2023
USD ($)
Oct. 04, 2021
USD ($)
a
Jun. 04, 2021
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Real Estate [Line Items]            
Proceeds from sales of real estate       $ 67,821 $ 0 $ 81,871
Gains on sale of real estate       $ 53,952 $ 0 $ 69,950
Rego Park III Land Parcel            
Real Estate [Line Items]            
Proceeds from sales of real estate $ 71,060          
Net proceeds from sale of land 67,821          
Gains on sale of real estate $ 53,952          
Bronx Land Parcel            
Real Estate [Line Items]            
Proceeds from sales of real estate     $ 9,291      
Gains on sale of real estate     9,124      
Proceeds from sale of land, excluding disposal cost     $ 10,000      
IKEA | Tenant Occupant | Paramus            
Real Estate [Line Items]            
Net proceeds from sale of land   $ 4,580        
Gains on sale of real estate   60,826        
Proceeds from sale of land, excluding disposal cost   $ 75,000        
Area of land | a   30.3        
Repayments of mortgage loan   $ 68,000        
v3.24.0.1
Related Party Transactions - Narrative (Details)
12 Months Ended
Dec. 31, 2023
USD ($)
$ / ft²
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Related Party Transaction [Line Items]      
Related party transaction, amounts of transaction $ 10,729,000 $ 10,093,000 $ 11,331,000
Leasing Fees      
Related Party Transaction [Line Items]      
Related party transaction, amounts of transaction 1,213,000 1,378,000 $ 1,800,000
Vornado      
Related Party Transaction [Line Items]      
Other liabilities 715,000 801,000  
Vornado | Management and Development Agreement      
Related Party Transaction [Line Items]      
Annual management fee $ 2,800,000    
Vornado | Management and Development Agreement | 731 Lexington Avenue | Office and Retail Space      
Related Party Transaction [Line Items]      
Property management fee agreement, price per square foot | $ / ft² 0.50    
Vornado | Percentage of gross revenue | Rego Park II | Retail Site      
Related Party Transaction [Line Items]      
Property management fee, percent fee 2.00%    
Vornado | Base management fee | 731 Lexington Avenue | Common Area      
Related Party Transaction [Line Items]      
Related party transaction, amounts of transaction $ 365,000    
Vornado | Escalating annualized management fee | 731 Lexington Avenue | Common Area      
Related Party Transaction [Line Items]      
Property management fee, percent fee 3.00%    
Vornado | Development fee | 731 Lexington Avenue      
Related Party Transaction [Line Items]      
Property management fee, percent fee 6.00%    
Vornado | 3% of rent for the first ten years      
Related Party Transaction [Line Items]      
Service fees, rate 3.00%    
Vornado | 2% of rent for the eleventh through the twentieth year      
Related Party Transaction [Line Items]      
Service fees, rate 2.00%    
Vornado | 1% of rent for the twenty-first through thirtieth year      
Related Party Transaction [Line Items]      
Service fees, rate 1.00%    
Vornado | 1% increase in fee if third party is used      
Related Party Transaction [Line Items]      
Service fees, rate 1.00%    
Vornado | 3% of gross proceeds used for commission for sales less than $50,000,000      
Related Party Transaction [Line Items]      
Related party transaction, rate 3.00%    
Asset sale commission threshold $ 50,000,000    
Vornado | 1% of gross proceeds used for commission for sales greater than $50,000,000      
Related Party Transaction [Line Items]      
Related party transaction, rate 1.00%    
Asset sale commission threshold $ 50,000,000    
Vornado | Management Property Management Cleaning Engineering and Security Fees      
Related Party Transaction [Line Items]      
Other liabilities 646,000 742,000  
Vornado | Leasing Fees      
Related Party Transaction [Line Items]      
Other liabilities $ 69,000 $ 59,000  
Vornado | Alexander's Inc. | Vornado      
Related Party Transaction [Line Items]      
Parent ownership 32.40%    
Director | Alexander's Inc. | Mr. Roth, Interstate, David Mandelbaum and Russell B, Wight, Jr.      
Related Party Transaction [Line Items]      
Ownership percentage by noncontrolling owners 26.00%    
Indirectly through Vornado | Alexander's Inc. | Directors indirect through Vornado      
Related Party Transaction [Line Items]      
Ownership percentage by noncontrolling owners 2.30%    
v3.24.0.1
Related Party Transactions - Summary of Fees to Vornado (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Related Party Transaction [Line Items]      
Fees to related party $ 10,729 $ 10,093 $ 11,331
Company management fees      
Related Party Transaction [Line Items]      
Fees to related party 2,800 2,800 2,800
Development fees      
Related Party Transaction [Line Items]      
Fees to related party 0 3 141
Leasing fees      
Related Party Transaction [Line Items]      
Fees to related party 1,213 1,378 1,800
Commissions on sales of real estate      
Related Party Transaction [Line Items]      
Fees to related party 711 0 1,050
Property management, cleaning, engineering, parking and security fees      
Related Party Transaction [Line Items]      
Fees to related party $ 6,005 $ 5,912 $ 5,540
v3.24.0.1
Mortgages Payable - Narrative (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Jul. 15, 2023
Jun. 30, 2023
Dec. 31, 2023
Jun. 09, 2023
Mortgage Loans on Real Estate        
Net carrying value of real estate collateralizing the debt     $ 594,681  
731 Lexington Avenue        
Mortgage Loans on Real Estate        
Payments for derivative instrument   $ 11,258    
731 Lexington Avenue | Mortgages        
Mortgage Loans on Real Estate        
Mortgage loans, extension option       1 year
Mortgage loans       $ 500,000
731 Lexington Avenue | Mortgages | LIBOR        
Mortgage Loans on Real Estate        
Basis spread 0.90%      
Interest cap rate 6.00%      
731 Lexington Avenue | Mortgages | Prime Rate        
Mortgage Loans on Real Estate        
Basis spread     8.50%  
Interest cap rate   6.00%    
v3.24.0.1
Mortgages Payable - Schedule of Outstanding Mortgages Payable (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Jun. 30, 2023
Dec. 31, 2022
Mortgage Loans on Real Estate      
Deferred debt issuance costs, net of accumulated amortization of $17,639 and $16,071, respectively $ (3,993)    
Notes payable 1,092,551   $ 1,091,051
Mortgages      
Mortgage Loans on Real Estate      
Deferred debt issuance costs, accumulated amortization 17,639   16,071
Total 1,096,544   1,096,544
Deferred debt issuance costs, net of accumulated amortization of $17,639 and $16,071, respectively (3,993)   (5,493)
Notes payable $ 1,092,551   1,091,051
Mortgages | 731 Lexington Avenue | Prime Rate      
Mortgage Loans on Real Estate      
Interest cap rate   6.00%  
Basis spread 8.50%    
Mortgages | 731 Lexington Avenue | Office space      
Mortgage Loans on Real Estate      
Interest rate 6.00%    
Total $ 500,000   500,000
Mortgages | 731 Lexington Avenue | Office space | Prime Rate      
Mortgage Loans on Real Estate      
Interest cap rate 6.00%    
Mortgages | 731 Lexington Avenue | Retail space      
Mortgage Loans on Real Estate      
Interest rate 1.76%    
Total $ 300,000   300,000
Derivative, Swaption Interest Rate 1.76%    
Mortgages | 731 Lexington Avenue | Retail space | SOFR      
Mortgage Loans on Real Estate      
Basis spread 1.51%    
Mortgages | Rego Park II | Retail space      
Mortgage Loans on Real Estate      
Interest rate 5.60%    
Total $ 202,544   202,544
Mortgages | Rego Park II | Retail space | SOFR      
Mortgage Loans on Real Estate      
Interest cap rate 4.15%    
Basis spread 1.45%    
Mortgages | The Alexander apartment tower | Apartment Building      
Mortgage Loans on Real Estate      
Interest rate 2.63%    
Total $ 94,000   $ 94,000
v3.24.0.1
Mortgages Payable - Schedule of Principal Repayments (Details)
$ in Thousands
Dec. 31, 2023
USD ($)
Debt Disclosure [Abstract]  
2024 $ 500,000
2025 502,544
2026 0
2027 94,000
2028 0
Thereafter $ 0
v3.24.0.1
Marketable Securities (Details)
$ in Thousands
1 Months Ended
Dec. 31, 2021
USD ($)
shares
Marketable Securities [Abstract]  
Number of shares sold (shares) | shares 564,612
Cash proceeds | $ $ 9,506
v3.24.0.1
Discontinued Operations (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Dec. 31, 2021
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2012
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Income from discontinued operations (see Note 8)   $ 0 $ 0 $ 2,348  
Kings Plaza Regional Shopping Center | Discontinued Operations, Disposed of by Sale          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Deferred gain on sale of property         $ 2,348
Income from discontinued operations (see Note 8) $ 2,348        
v3.24.0.1
Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value (Details) - Recurring - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Fair Value Measurements    
Investments in U.S. Treasury bills   $ 266,963
Interest rate derivatives (included in other assets) $ 22,608 29,351
Total assets   296,314
Level 1    
Fair Value Measurements    
Investments in U.S. Treasury bills   266,963
Interest rate derivatives (included in other assets) 0 0
Total assets   266,963
Level 2    
Fair Value Measurements    
Investments in U.S. Treasury bills   0
Interest rate derivatives (included in other assets) 22,608 29,351
Total assets   29,351
Level 3    
Fair Value Measurements    
Investments in U.S. Treasury bills   0
Interest rate derivatives (included in other assets) $ 0 0
Total assets   $ 0
v3.24.0.1
Fair Value Measurements - Schedule of Interest Rate Derivatives (Details) - USD ($)
$ in Thousands
1 Months Ended
Jun. 30, 2023
Dec. 31, 2023
Jul. 15, 2023
Dec. 31, 2022
Fair Value Measurements        
Included in other assets   $ 22,608   $ 29,351
731 Lexington Avenue        
Fair Value Measurements        
Payments for derivative instrument $ 11,258      
LIBOR | 731 Lexington Avenue | Mortgages        
Fair Value Measurements        
Interest cap rate     6.00%  
Prime Rate | 731 Lexington Avenue | Mortgages        
Fair Value Measurements        
Interest cap rate 6.00%      
731 Lexington Avenue mortgage loan, retail condominium | Interest rate derivatives (included in other assets) | Designated as Hedging Instrument        
Fair Value Measurements        
Included in other assets   16,315   26,718
Notional Amount   $ 300,000    
Swapped Rate   1.76%    
Rego Park II shopping center mortgage loan | Interest rate derivatives (included in other assets) | Designated as Hedging Instrument        
Fair Value Measurements        
Included in other assets   $ 1,370   2,622
Notional Amount   $ 202,544    
Rego Park II shopping center mortgage loan | Interest Rate Contract | Designated as Hedging Instrument | SOFR        
Fair Value Measurements        
Interest cap rate   4.15%    
731 Lexington Avenue mortgage loan, office condominium | Interest rate derivatives (included in other assets) | Designated as Hedging Instrument        
Fair Value Measurements        
Included in other assets   $ 4,923   $ 11
Notional Amount   $ 500,000    
731 Lexington Avenue mortgage loan, office condominium | Interest Rate Contract | Designated as Hedging Instrument | Prime Rate        
Fair Value Measurements        
Interest rate   8.50%    
v3.24.0.1
Fair Value Measurements - Summary of Carrying Amount and Fair Value of Financial Instruments (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Carrying Amount    
Assets:    
Cash equivalents $ 363,535 $ 47,852
Liabilities:    
Mortgages payable (excluding deferred debt issuance costs, net) 1,096,544 1,096,544
Level 1 | Fair Value    
Assets:    
Cash equivalents 363,535 47,852
Level 2 | Fair Value    
Liabilities:    
Mortgages payable (excluding deferred debt issuance costs, net) $ 1,071,887 $ 1,061,221
v3.24.0.1
Leases - Lessor (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Lessor, Lease, Description [Line Items]      
Revenues $ 224,962 $ 205,814 $ 206,148
Revenue Benchmark | Bloomberg | Customer Concentration Risk      
Lessor, Lease, Description [Line Items]      
Revenues $ 120,351 $ 115,129 $ 113,140
Percentage rent contributed by tenant 54.00% 56.00% 55.00%
Minimum      
Lessor, Lease, Description [Line Items]      
Lessor, operating lease, term (years) 5 years    
Maximum      
Lessor, Lease, Description [Line Items]      
Lessor, operating lease, term (years) 25 years    
The Alexander apartment tower | Minimum      
Lessor, Lease, Description [Line Items]      
Lessor, operating lease, term (years) 1 year    
The Alexander apartment tower | Maximum      
Lessor, Lease, Description [Line Items]      
Lessor, operating lease, term (years) 2 years    
v3.24.0.1
Leases - Future Undiscounted Cash Flows for Operating Leases (Details)
$ in Thousands
Dec. 31, 2023
USD ($)
Leases [Abstract]  
2024 $ 157,833
2025 129,407
2026 125,014
2027 122,495
2028 130,203
Thereafter $ 190,503
v3.24.0.1
Leases - Narrative (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2023
USD ($)
option
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Jan. 31, 2022
option
Lessee, Lease, Description [Line Items]        
Right-of-use asset $ 17,522      
Lease liability $ 20,452      
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Other assets      
Operating Lease, Liability, Statement of Financial Position [Extensible List] Other liabilities      
Operating leases, rent expense $ 2,161 $ 2,161 $ 746  
Operating lease, payments $ 800 $ 800 $ 800  
Flushing        
Lessee, Lease, Description [Line Items]        
Number of extension options (option) | option 1     1
Lessee, operating lease, renewal term (years) 10 years     10 years
Right-of-use asset $ 16,000      
Lease liability $ 16,000      
Weighted average discount rate (percentage) 5.86%      
v3.24.0.1
Leases - Future Lease Payments for Operating Lease (Details)
$ in Thousands
Dec. 31, 2023
USD ($)
Leases [Abstract]  
2024 $ 800
2025 800
2026 800
2027 2,707
2028 2,880
Thereafter 23,280
Total undiscounted cash flows 31,267
Present value discount (10,815)
Lease liability as of December 31, 2023 $ 20,452
v3.24.0.1
Stock-Based Compensation (Details) - 2016 Omnibus Stock Plan - Director - Deferred Stock Units - USD ($)
1 Months Ended
May 31, 2023
Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award    
Non-option equity instruments granted per director (in shares) 449  
Non option equity instruments market value $ 75,000  
Non-option equity instruments grant date fair value per grant 56,250  
Non-option equity instruments grant date fair value per grant total $ 450,000  
Non-option equity instruments, outstanding, number (in shares)   23,388
Shares available for future grant under the plan (in shares)   482,399
v3.24.0.1
Commitments and Contingencies - Insurance (Details)
12 Months Ended
Dec. 31, 2023
USD ($)
All Risk Property And Rental Value  
Insurance  
Insurance maximum coverage per incident $ 1,700,000,000
Terrorism Coverage Including NBCR  
Insurance  
Insurance maximum coverage per incident 1,700,000,000
Insurance maximum coverage in aggregate $ 1,700,000,000
NBCR  
Insurance  
Federal government responsibility (in percentage) 80.00%
NBCR | FNSIC  
Insurance  
Insurance deductible $ 316,000
Self insured responsibility (in percentage) 20.00%
General Liability  
Insurance  
Insurance maximum coverage per property $ 300,000,000
Insurance maximum coverage per incident 300,000,000
Disease Coverage  
Insurance  
Insurance maximum coverage per incident $ 30,000,000
v3.24.0.1
Commitments and Contingencies - Litigation and contingencies (Details)
$ in Thousands
Dec. 31, 2023
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
Standby letters of credit, outstanding $ 900
v3.24.0.1
Multiemployer Benefit Plans (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Multiemployer Pension Plans      
Multiemployer Plans      
Multiemployer plan, contributions by employer $ 215 $ 178 $ 217
Multiemployer Health Plans      
Multiemployer Plans      
Multiemployer plan, contributions by employer $ 1,005 $ 839 $ 748
v3.24.0.1
Earnings Per Share - Narrative (Details) - shares
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Earnings Per Share [Abstract]      
Potentially dilutive securities outstanding 0 0 0
v3.24.0.1
Earnings Per Share - Schedule of Basic and Diluted Income Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Earnings Per Share [Abstract]      
Income from continuing operations $ 102,413 $ 57,632 $ 130,582
Income from discontinued operations (see Note 8) 0 0 2,348
Net income $ 102,413 $ 57,632 $ 132,930
Weighted average shares outstanding - basic (in shares) 5,129,330 5,126,100 5,123,613
Weighted average shares outstanding - diluted (in shares) 5,129,330 5,126,100 5,123,613
Income from continuing operations, basic (usd per share) $ 19.97 $ 11.24 $ 25.48
Income from continuing operations, diluted (usd per share) 19.97 11.24 25.48
Income from discontinued operations (see Note 8), basic (usd per share) 0 0 0.46
Income from discontinued operations (see Note 8), diluted (usd per share) 0 0 0.46
Net income per common share, basic (usd per share) 19.97 11.24 25.94
Net income per common share, diluted (in dollars per share) $ 19.97 $ 11.24 $ 25.94
v3.24.0.1
Schedule III: Real Estate and Accumulated Depreciation - Schedule (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Encumbrances $ 1,096,544      
Initial cost of Land 19,206      
Initial cost of Building and Leasehold improvements 24,435      
Costs capitalized subsequent to acquisition 1,022,979      
Carrying amount of Land 32,271      
Carrying amount of Buildings and Leasehold improvements 1,034,068      
Development and Construction in progress 281      
Total 1,066,620 $ 1,084,598 $ 1,069,426 $ 1,071,043
Accumulated Depreciation and Amortization 415,903 $ 396,268 $ 370,557 $ 350,122
Deferred debt issuance costs, net 3,993      
Net basis difference of assets and liabilities between tax basis and GAAP basis 145,246      
New York | Rego Park I        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Encumbrances 0      
Initial cost of Land 1,647      
Initial cost of Building and Leasehold improvements 8,953      
Costs capitalized subsequent to acquisition 93,138      
Carrying amount of Land 1,647      
Carrying amount of Buildings and Leasehold improvements 102,091      
Development and Construction in progress 0      
Total 103,738      
Accumulated Depreciation and Amortization $ 47,931      
Date of Construction 1959      
Date acquired 1992      
New York | Rego Park I | Minimum        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Life on which Depreciation in Latest Income Statement is Computed 3 years      
New York | Rego Park I | Maximum        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Life on which Depreciation in Latest Income Statement is Computed 39 years      
New York | Rego Park II | Retail space        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Encumbrances $ 202,544      
Initial cost of Land 3,127      
Initial cost of Building and Leasehold improvements 1,467      
Costs capitalized subsequent to acquisition 390,267      
Carrying amount of Land 3,127      
Carrying amount of Buildings and Leasehold improvements 391,453      
Development and Construction in progress 281      
Total 394,861      
Accumulated Depreciation and Amortization $ 135,791      
Date of Construction 2009      
Date acquired 1992      
New York | Rego Park II | Retail space | Minimum        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Life on which Depreciation in Latest Income Statement is Computed 3 years      
New York | Rego Park II | Retail space | Maximum        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Life on which Depreciation in Latest Income Statement is Computed 40 years      
New York | The Alexander apartment tower        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Encumbrances $ 94,000      
Initial cost of Land 0      
Initial cost of Building and Leasehold improvements 0      
Costs capitalized subsequent to acquisition 115,074      
Carrying amount of Land 0      
Carrying amount of Buildings and Leasehold improvements 115,074      
Development and Construction in progress 0      
Total 115,074      
Accumulated Depreciation and Amortization $ 27,036      
Date of Construction 2016      
Date acquired 1992      
New York | The Alexander apartment tower | Minimum        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Life on which Depreciation in Latest Income Statement is Computed 3 years      
New York | The Alexander apartment tower | Maximum        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Life on which Depreciation in Latest Income Statement is Computed 39 years      
New York | Flushing        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Encumbrances $ 0      
Initial cost of Land 0      
Initial cost of Building and Leasehold improvements 1,660      
Costs capitalized subsequent to acquisition (107)      
Carrying amount of Land 0      
Carrying amount of Buildings and Leasehold improvements 1,553      
Development and Construction in progress 0      
Total 1,553      
Accumulated Depreciation and Amortization $ 1,324      
Date of Construction 1975      
Date acquired 1992      
New York | Lexington Avenue        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Encumbrances $ 800,000      
Initial cost of Land 14,432      
Initial cost of Building and Leasehold improvements 12,355      
Costs capitalized subsequent to acquisition 424,607      
Carrying amount of Land 27,497      
Carrying amount of Buildings and Leasehold improvements 423,897      
Development and Construction in progress 0      
Total 451,394      
Accumulated Depreciation and Amortization $ 203,821      
Date of Construction 2003      
Date acquired 1992      
New York | Lexington Avenue | Minimum        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Life on which Depreciation in Latest Income Statement is Computed 9 years      
New York | Lexington Avenue | Maximum        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Life on which Depreciation in Latest Income Statement is Computed 39 years      
v3.24.0.1
Schedule III: Real Estate and Accumulated Depreciation - Rollforward of Real Estate and Accumulated Deprecation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
REAL ESTATE:      
Balance at beginning of period $ 1,084,598 $ 1,069,426 $ 1,071,043
Changes during the period 1,088,903 1,084,621 1,086,975
Assets sold (14,186) 0 (11,921)
Assets written-off (8,097) (23) (5,628)
Balance at end of period 1,066,620 1,084,598 1,069,426
ACCUMULATED DEPRECIATION:      
Balance at beginning of period 396,268 370,557 350,122
Depreciation expense 28,137 25,734 26,063
Subtotal of accumulated depreciation 424,405 396,291 376,185
Accumulated depreciation on assets sold (405) 0 0
Accumulated depreciation on assets written-off (8,097) (23) (5,628)
Balance at end of period 415,903 396,268 370,557
Land      
REAL ESTATE:      
Changes during the period 0 0 0
Buildings and leasehold improvements      
REAL ESTATE:      
Changes during the period 2,959 15,002 5,842
Development and construction in progress      
REAL ESTATE:      
Changes during the period $ 1,346 $ 193 $ 10,090

Return