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v3.3.1.900

Noncontrolling Interests (Property Partnerships) (Narrative) (Details) $ in Thousands |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 18, 2015 USD ($) ft² | Oct. 30, 2014 USD ($) ft² floor | May. 31, 2013 USD ($) ft² partners | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Dec. 10, 2015 USD ($) | Oct. 09, 2013 USD ($) ft²
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Property partnerships |  |  |  | $ 1,574,400 | $ 1,602,467 |  |  |
Noncontrolling interest in property partnerships recorded upon consolidation |  |  |  | 0 | 0 | $ 480,861 |  |
Proceeds from sales of real estate |  |  |  | 602,600 | 419,864 | 250,078 |  |
Gains on sales of real estate |  |  |  | $ 375,895 | $ 168,039 | $ 0 |  |
505 9th Street [Member] | Consolidated Properties [Member] |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Ownership Percentage by Parent | 50.00% |  |  |  |  |  |  |
Sale Price Of Sold Property | $ 318,000 |  |  |  |  |  |  |
Mortgage Loan Related to Property Sales | $ 117,000 |  |  |  |  |  |  |
Net Rentable Area | ft² | 322,000 |  |  |  |  |  |  |
Proceeds from sales of real estate | $ 194,600 |  |  |  |  |  |  |
Gains on sales of real estate | 199,500 |  |  |  |  |  |  |
Noncontroling interest for a dissolved entity relcassed to accounts payable and and accrued expenses |  |  |  |  |  |  | $ 4,100 |
Consolidated Entity Excluding Variable Interest Entities (VIE) [Member] | 505 9th Street [Member] | Consolidated Properties [Member] |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Proceeds from sales of real estate | 97,300 |  |  |  |  |  |  |
Gains on sales of real estate | $ 101,100 |  |  |  |  |  |  |
767 Fifth Avenue (the General Motors Building) |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Number of Joint Venture Partners | partners |  |  | 2 |  |  |  |  |
Ownership Percentage |  |  | 40.00% |  |  |  |  |
Noncontrolling interest in property partnerships recorded upon consolidation |  |  | $ 480,861 |  |  |  |  |
Net Rentable Area | ft² |  |  | 1,800,000 |  |  |  |  |
Time Square Tower [Member] |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Sale Price Of Sold Property |  |  |  |  |  |  |  | $ 684,000
Portion allocation to noncontrolling interest based on carrying value of the total equity of the property prior to the sale |  |  |  |  |  |  |  | 243,500
Difference between net cash proceeds received and noncontrolling interest recognized |  |  |  |  |  |  |  | 429,600
Proceeds from sale of an interest in a real estate asset |  |  |  |  |  |  |  | $ 673,100
Ownership Percentage |  |  |  |  |  |  |  | 45.00%
Net Rentable Area | ft² |  |  |  |  |  |  |  | 1,246,000
601 Lexington Avenue, Atlantic Wharf Office Building and 100 Federal Street [Member] |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Sale Price Of Sold Property |  | $ 1,827,000 |  |  |  |  |  |
Portion allocation to noncontrolling interest based on carrying value of the total equity of the property prior to the sale |  | 849,000 |  |  |  |  |  |
Difference between net cash proceeds received and noncontrolling interest recognized |  | 648,400 |  |  |  |  |  |
Proceeds from sale of an interest in a real estate asset |  | $ 1,497,000 |  |  |  |  |  |
Ownership Percentage |  | 45.00% |  |  |  |  |  |
Disposa Group Including Discontinued Operations Secured Debt |  | $ 712,900 |  |  |  |  |  |
601 Lexington Avenue | 601 Lexington Avenue, Atlantic Wharf Office Building and 100 Federal Street [Member] |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Net Rentable Area | ft² |  | 1,669,000 |  |  |  |  |  |
Atlantic Wharf | 601 Lexington Avenue, Atlantic Wharf Office Building and 100 Federal Street [Member] |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Net Rentable Area | ft² |  | 791,000 |  |  |  |  |  |
100 Federal Street | 601 Lexington Avenue, Atlantic Wharf Office Building and 100 Federal Street [Member] |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Net Rentable Area | ft² |  | 1,323,000 |  |  |  |  |  |
Office Tower [Member] | 601 Lexington Avenue, Atlantic Wharf Office Building and 100 Federal Street [Member] |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Number of floors in building | floor |  | 59 |  |  |  |  |  |
Low Rise Building [Member] | 601 Lexington Avenue, Atlantic Wharf Office Building and 100 Federal Street [Member] |  |  |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |
Number of floors in building | floor |  | 6 |  |  |  |  |  |

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