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v3.19.3.a.u2

Investments in Unconsolidated Joint Ventures - Mortgages and Other Loans Payable (Details) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2019 USD ($) extension | Aug. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Debt Instrument [Line Items] |  |  |
Total fixed rate debt | $ 1,383,449,000 |  | $ 1,389,717,000
Total floating rate debt | 828,434,000 |  | 598,442,000
Deferred financing costs, net | (28,630,000) |  | (26,919,000)
115 Spring Street |  |  |
Debt Instrument [Line Items] |  |  |
Total floating rate debt |  |  | 65,550,000
Joint venture |  |  |
Debt Instrument [Line Items] |  |  |
Total fixed rate debt | 5,351,721,000 |  | 5,666,108,000
Total floating rate debt | 3,691,686,000 |  | 3,387,705,000
Total fixed rate and floating rate debt | 9,043,407,000 |  | 9,053,813,000
Deferred financing costs, net | (91,538,000) |  | (103,191,000)
Total joint venture mortgages and other loans payable, net | $ 8,951,869,000 |  | 8,950,622,000
Joint venture | 717 Fifth Avenue |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 10.92% |  |
Joint venture | 717 Fifth Avenue | Mortgage loan |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, fixed rate debt (as a percent) | 4.45% |  |
Total fixed rate debt | $ 300,000,000 |  | 300,000,000
Joint venture | 717 Fifth Avenue | Mezzanine loans |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, fixed rate debt (as a percent) | 5.50% |  |
Total fixed rate debt | $ 355,328,000 |  | 355,328,000
Joint venture | 650 Fifth Avenue |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 50.00% |  |
Joint venture | 650 Fifth Avenue | Mortgage loan |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, fixed rate debt (as a percent) | 4.46% |  |
Total fixed rate debt | $ 210,000,000 |  | 210,000,000
Joint venture | 650 Fifth Avenue | Mezzanine loans |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, fixed rate debt (as a percent) | 5.45% |  |
Total fixed rate debt | $ 65,000,000 |  | 65,000,000
Joint venture | 21 East 66th Street |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 32.28% |  |
Interest rate, fixed rate debt (as a percent) | 3.60% |  |
Interest rate, floating rate debt (as a percent) | 2.75% |  |
Total fixed rate debt | $ 12,000,000 |  | 12,000,000
Total floating rate debt | $ 712,000 |  | 1,571,000
Joint venture | 919 Third Avenue |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 51.00% |  |
Interest rate, fixed rate debt (as a percent) | 5.12% |  |
Total fixed rate debt | $ 500,000,000 |  | 500,000,000
Joint venture | 1515 Broadway |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 56.87% |  |
Interest rate, fixed rate debt (as a percent) | 3.93% |  |
Total fixed rate debt | $ 838,546,000 |  | 855,876,000
Joint venture | 11 Madison Avenue |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 60.00% |  |
Interest rate, fixed rate debt (as a percent) | 3.84% |  |
Total fixed rate debt | $ 1,400,000,000 |  | 1,400,000,000
Joint venture | 800 Third Avenue |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 60.52% |  |
Interest rate, fixed rate debt (as a percent) | 3.37% |  |
Total fixed rate debt | $ 177,000,000 |  | 177,000,000
Joint venture | 400 East 57th Street |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 41.00% |  |
Interest rate, fixed rate debt (as a percent) | 3.00% |  |
Total fixed rate debt | $ 97,735,000 |  | 99,828,000
Joint venture | Worldwide Plaza |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 24.35% |  |
Interest rate, fixed rate debt (as a percent) | 3.98% |  |
Total fixed rate debt | $ 1,200,000,000 |  | 1,200,000,000
Joint venture | Stonehenge Portfolio |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate, fixed rate debt (as a percent) | 3.50% |  |
Total fixed rate debt | $ 196,112,000 |  | 321,076,000
Joint venture | Stonehenge Portfolio | Initial Maturity August 2019 |  |  |
Debt Instrument [Line Items] |  |  |
Total fixed rate debt | 132,600,000 |  |
Joint venture | Stonehenge Portfolio | Initial Maturity June 2024 |  |  |
Debt Instrument [Line Items] |  |  |
Total fixed rate debt | 63,500,000 |  |
Joint venture | 521 Fifth Avenue |  |  |
Debt Instrument [Line Items] |  |  |
Total fixed rate debt | $ 0 |  | 170,000,000
Joint venture | 10 East 53rd Street |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 55.00% |  |
Interest rate, floating rate debt (as a percent) | 2.25% |  |
Total floating rate debt | $ 170,000,000 |  | 170,000,000
Joint venture | 280 Park Avenue |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 50.00% |  |
Interest rate, floating rate debt (as a percent) | 1.73% |  |
Total floating rate debt | $ 1,200,000,000 |  | 1,200,000,000
Joint venture | 1552 Broadway |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 50.00% |  |
Interest rate, floating rate debt (as a percent) | 2.65% |  |
Total floating rate debt | $ 195,000,000 |  | 195,000,000
Joint venture | 121 Greene Street |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 50.00% |  |
Interest rate, floating rate debt (as a percent) | 1.50% |  |
Total floating rate debt | $ 15,000,000 |  | 15,000,000
Joint venture | 11 West 34th Street |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 30.00% |  |
Interest rate, floating rate debt (as a percent) | 1.45% |  |
Total floating rate debt | $ 23,000,000 |  | 23,000,000
Joint venture | 100 Park Avenue |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 49.90% |  |
Interest rate, floating rate debt (as a percent) | 1.75% |  |
Total floating rate debt | $ 356,972,000 |  | 360,000,000
Joint venture | One Vanderbilt |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 71.01% |  |
Interest rate, floating rate debt (as a percent) | 2.50% |  |
Total floating rate debt | $ 732,928,000 |  | 375,000,000
Joint venture | One Vanderbilt | Construction Loans |  |  |
Debt Instrument [Line Items] |  |  |
Maximum facility capacity | $ 1,750,000,000 |  |
Term (in Years) | 5 years |  |
Number of extension options | extension | 2 |  |
Period of extension option | 1 year |  |
Joint venture | 2 Herald Square |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 51.00% |  |
Interest rate, floating rate debt (as a percent) | 1.45% |  |
Total floating rate debt | $ 190,000,000 |  | 133,565,000
Joint venture | 55 West 46th Street |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 25.00% |  |
Interest rate, floating rate debt (as a percent) | 1.25% |  |
Total floating rate debt | $ 192,524,000 |  | 185,569,000
Joint venture | 55 West 46th Street | Mortgage loan |  |  |
Debt Instrument [Line Items] |  |  |
Face amount of loan |  | $ 192,500,000 |
Committed amount |  | 198,000,000.0 |
Debt instrument unfunded amount |  | $ 5,500,000 |
Joint venture | 115 Spring Street |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 51.00% |  |
Interest rate, floating rate debt (as a percent) | 3.40% |  |
Total floating rate debt | $ 65,550,000 |  | 0
Joint venture | 605 West 42nd Street |  |  |
Debt Instrument [Line Items] |  |  |
Economic Interest, percent | 20.00% |  |
Interest rate, floating rate debt (as a percent) | 1.44% |  |
Total floating rate debt | $ 550,000,000 |  | 550,000,000
Joint venture | 131-137 Spring Street |  |  |
Debt Instrument [Line Items] |  |  |
Total floating rate debt | 0 |  | 141,000,000
Joint venture | 103 East 86th Street |  |  |
Debt Instrument [Line Items] |  |  |
Total floating rate debt | $ 0 |  | $ 38,000,000

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