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v3.3.1.900

Related Party Transactions (Details) |  | 12 Months Ended
--- | --- | ---
Dec. 22, 2014 USD ($) | Dec. 31, 2015 USD ($) $ / ft² | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Management and Development Agreements [Abstract] |  |  |  |
Property Management and Development Fee agreement |  | 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) $289,000, 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. The payment of development fees for The Alexander apartment tower is due on substantial completion of the construction, as defined. |  |
Leasing Agreement [Abstract] |  |  |  |
Leasing service fee payable, description |  | 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. |  |
Mr. Roth, David Mandelbaum, and Russell B. Wight, Jr. |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Ownership Interest in the Company |  | 26.30% |  |
IP & Partners Through Vornado |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Ownership Interest in the Company |  | 2.20% |  |
Vornado [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent |  | 32.40% |  |
Management and Development Agreements [Abstract] |  |  |  |
Management Fee Agreement Value (in US dollars) |  | $ 2,800,000 |  |
Leasing Agreement [Abstract] |  |  |  |
Asset Sale Commission Threshold (in US dollars) |  | $ 50,000,000 |  |
Percentage Commissions On Sale Of Assets Under Fifty Million |  | 3.00% |  |
Percentage Commissions On Sale Of Assets Over Fifty Million |  | 1.00% |  |
Leasing services fee and commission on asset sale, annual installment, maximum. (in US dollars) | $ 4,000,000 |  |  |
Debt Instrument, Description of Variable Rate Basis | One Year LIBOR |  |  |
Basis spread over LIBOR | 1.00% |  |  |
Repayment of leasing costs (in US Dollars) | $ 40,353,000 |  |  |
Summary of fees to Vornado |  |  |  |
Fees to related party (in US dollars) |  | $ 11,799,000 | $ 11,282,000 | $ 7,341,000
Vornado [Member] | 731 Lexington Avenue [Member] | Office And Retail Space [Member] |  |  |  |
Management and Development Agreements [Abstract] |  |  |  |
Property Management Fee Agreement Price Per Square Foot | $ / ft² |  | 0.5 |  |
Vornado [Member] | 731 Lexington Avenue [Member] | Common Area [Member] |  |  |  |
Management and Development Agreements [Abstract] |  |  |  |
Property Management Fee Agreement Value (in US dollars) |  | $ 289,000 |  |
Property Management Fee Escalation Percentage Per Annum |  | 3.00% |  |
Vornado [Member] | Rego Park II [Member] | Retail Space [Member] |  |  |  |
Management and Development Agreements [Abstract] |  |  |  |
Property Management Fee Agreement Percentage Of Income |  | 2.00% |  |
Vornado [Member] | Company Management Fees [Member] |  |  |  |
Summary of fees to Vornado |  |  |  |
Fees to related party (in US dollars) |  | $ 2,800,000 | 2,800,000 | 2,800,000
Vornado [Member] | Development fees [Member] |  |  |  |
Management and Development Agreements [Abstract] |  |  |  |
Development fee as percentage of development costs |  | 6.00% |  |
Summary of fees to Vornado |  |  |  |
Fees to related party (in US dollars) |  | $ 2,435,000 | 3,394,000 | 0
Fees owed (in US dollars) |  | $ 5,795,000 | 3,394,000 |
Vornado [Member] | Leasing Fees [Member] |  |  |  |
Leasing Agreement [Abstract] |  |  |  |
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 Increase Lease Fee If Broker Used |  | 1.00% |  |
Summary of fees to Vornado |  |  |  |
Fees to related party (in US dollars) |  | $ 2,950,000 | 1,430,000 | 1,126,000
Fees owed (in US dollars) |  | 2,473,000 |  |
Vornado [Member] | Property Management Fees [Member] |  |  |  |
Summary of fees to Vornado |  |  |  |
Fees to related party (in US dollars) |  | 3,614,000 | 3,658,000 | $ 3,415,000
Fees owed (in US dollars) |  | $ 283,000 | $ 528,000 |

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