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v3.26.1

Related Party Transactions - Narrative (Details) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2026 USD ($) $ / ft² | Mar. 31, 2025 USD ($) | Dec. 31, 2025 USD ($)
Related Party Transaction [Line Items] |  |  |
Fees to related party | $ 2,074,000 | $ 2,591,000 |
Development fees |  |  |
Related Party Transaction [Line Items] |  |  |
Fees to related party | 65,000 | 419,000 |
Leasing fees |  |  |
Related Party Transaction [Line Items] |  |  |
Fees to related party | 30,000 | $ 13,000 |
Related Party |  |  |
Related Party Transaction [Line Items] |  |  |
Management fee agreement value | 2,800,000 |  |
Other liabilities | $ 0 |  | $ 134,000
Related Party | Development fees |  |  |
Related Party Transaction [Line Items] |  |  |
Development fee as percentage of development costs | 6.00% |  |
Other liabilities |  |  | 34,000
Related Party | Leasing fees |  |  |
Related Party Transaction [Line Items] |  |  |
Lease fee percentage of rent one to ten years | 3.00% |  |
Lease fee percentage of rent eleven to twenty years | 2.00% |  |
Lease fee percentage of rent twenty first to thirty years | 1.00% |  |
Percentage commissions on sale of assets under fifty million | 3.00% |  |
Asset sale commission threshold | $ 50,000,000 |  |
Percentage commissions on sale of assets over fifty million | 1.00% |  |
Other liabilities |  |  | $ 100,000
Percentage of third-party lease commission | 33.333% |  |
Related Party | Retail Space | Rego Park II | Property management, cleaning, engineering, parking and security fees |  |  |
Related Party Transaction [Line Items] |  |  |
Property management fee, percent fee | 2.00% |  |
Related Party | Office and Retail Space | 731 Lexington Avenue | Property management, cleaning, engineering, parking and security fees |  |  |
Related Party Transaction [Line Items] |  |  |
Property management fee agreement, price per square foot | $ / ft² | 0.50 |  |
Related Party | Common Area | 731 Lexington Avenue | Property management, cleaning, engineering, parking and security fees |  |  |
Related Party Transaction [Line Items] |  |  |
Property management fee escalation percentage per annum | 3.00% |  |
Related Party | Common Area | 731 Lexington Avenue | Management And Development Agreement, Base Management Fee |  |  |
Related Party Transaction [Line Items] |  |  |
Fees to related party | $ 399,000 |  |
Vornado | Leasing fees |  |  |
Related Party Transaction [Line Items] |  |  |
Asset sale commission threshold | $ 50,000,000 |  |
Alexander's Inc. | Related Party | Vornado |  |  |
Related Party Transaction [Line Items] |  |  |
Subsidiary, Ownership Percentage, Parent | 32.40% |  |

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