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Investments in Unconsolidated Joint Ventures - Schedule of General Information on Joint Ventures (Details) | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
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Nov. 30, 2024 USD ($) | Jan. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Jun. 30, 2023 USD ($) ft² | Mar. 31, 2024 USD ($) | Dec. 31, 2024 USD ($) ft² | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Sep. 30, 2023 | Dec. 31, 2021 USD ($)
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Depreciable real estate reserves and impairments |  |  |  |  |  | $ (104,071,000) | $ (382,374,000) | $ (6,313,000) |  |
Equity in net gain (loss) on sale of interest in unconsolidated joint venture/real estate |  |  |  |  |  | 208,144,000 | (13,368,000) | (131,000) |  |
Mortgages and other loans payable, net |  |  | $ 1,491,319,000 |  |  | 1,944,635,000 | 1,491,319,000 |  |  |
Repayments of mortgages |  |  |  |  |  | 68,977,000 | 25,826,000 | 292,364,000 |  |
Ownership percentage deconsolidated |  |  |  | 50.10% |  |  |  |  |  |
Investment fair value adjustment |  |  |  | $ 17,000,000 |  |  | 17,000,000 |  |  |
Carrying value of investment in leasehold interest |  |  | 6,102,864,000 |  |  | 6,607,741,000 | 6,102,864,000 | $ 9,198,799,000 |  | $ 7,650,907,000
Carrying Value |  |  | 346,745,000 |  |  | 303,726,000 | 346,745,000 |  |  |
Preferred Equity |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Carrying Value |  |  |  |  |  | 136,720,000 |  |  |  |
245 Park Avenue |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Approximate Square Feet | ft² |  |  |  | 1,782,793 |  |  |  |  |  |
Ownership interest disposed |  |  |  | 49.90% |  |  |  |  |  |
1552-1560 Broadway |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Depreciable real estate reserves and impairments |  |  | 8,100,000 |  |  |  |  |  |  |
2 Herald Square |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Depreciable real estate reserves and impairments |  |  | 101,700,000 |  |  |  |  |  |  |
625 Madison Avenue |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Depreciable real estate reserves and impairments |  |  |  |  | $ 5,900,000 |  | 23,100,000 |  |  |
625 Madison Avenue | Preferred Equity |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Carrying value of investment in leasehold interest |  |  |  |  |  | 235,400,000 |  |  |  |
Carrying Value |  |  |  |  |  | $ 214,700,000 |  |  |  |
Average yield (as a percent) |  |  |  |  |  | 8.86% |  |  |  |
Due from joint ventures |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Mortgages and other loans payable, net |  |  | $ 14,799,277,000 |  |  | $ 12,234,261,000 | $ 14,799,277,000 |  |  |
Due from joint ventures | 2 Herald Square |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Consideration transferred |  | $ 0 |  |  |  |  |  |  |  |
Investment in joint venture, ownership percentage |  | 95.00% |  |  |  |  |  |  |  |
Mortgages and other loans payable, net |  | $ 182,500,000 |  |  |  |  |  |  |  |
Repayments of mortgages |  | $ 7,000,000 |  |  |  |  |  |  |  |
Private Investors | 115 Spring Street |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Equity in net gain (loss) on sale of interest in unconsolidated joint venture/real estate |  |  |  |  |  | $ 11,700,000 |  |  |  |
Private Investors | Due from joint ventures | 800 Third Avenue |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 60.52% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 526,000 |  |  |  |
Private Investors | Due from joint ventures | 115 Spring Street |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 51.00% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 5,218 |  |  |  |
Private Investors | Due from joint ventures | 625 Madison Avenue |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 90.93% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 563,000 |  |  |  |
Ownership Interest |  |  |  |  |  |  |  |  | 90.43% |
New York State Teacher's Retirement System | Due from joint ventures | 919 Third Avenue |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 51.00% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 1,454,000 |  |  |  |
Private Investor / Wharton Properties | Due from joint ventures | 11 West 34th Street |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 30.00% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 17,150 |  |  |  |
Vornado Realty Trust | Due from joint ventures | 280 Park Avenue |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 50.00% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 1,219,158 |  |  |  |
Wharton Properties | Due from joint ventures | 1552-1560 Broadway |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 50.00% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 57,718 |  |  |  |
Wharton Properties | Due from joint ventures | 650 Fifth Avenue |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 50.00% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 69,214 |  |  |  |
PGIM Real Estate | Due from joint ventures | 11 Madison Avenue |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 60.00% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 2,314,000 |  |  |  |
National Pension Service of Korea / Hines Interest LP / Mori Building Co., Ltd | One Vanderbilt Avenue |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Investment in joint venture aggregate maximum ownership percentage |  |  |  |  |  |  |  |  |  | 11.00%
Investment In Joint Venture, Retained Ownership Percentage | 60.01% |  |  |  |  |  |  |  |  |
Equity in net gain (loss) on sale of interest in unconsolidated joint venture/real estate | $ 72,600,000 |  |  |  |  |  |  |  |  |
National Pension Service of Korea / Hines Interest LP / Mori Building Co., Ltd | Due from joint ventures | One Vanderbilt Avenue |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 60.01% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 1,657,198 |  |  |  |
RXR Realty / New York REIT | Due from joint ventures | Worldwide Plaza |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 24.95% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 2,048,725 |  |  |  |
Allianz Real Estate of America | Due from joint ventures | 1515 Broadway |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 56.87% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 1,750,000 |  |  |  |
Israeli Institutional Investor | 2 Herald Square |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Equity in net gain (loss) on sale of interest in unconsolidated joint venture/real estate | $ 20,400,000 |  |  |  |  |  |  |  |  |
Israeli Institutional Investor | Due from joint ventures | 2 Herald Square |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 95.00% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 369,000 |  |  |  |
A fund managed by Meritz Alternative Investment Management | Due from joint ventures | 15 Beekman |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 20.00% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 221,884 |  |  |  |
A fund managed by Meritz Alternative Investment Management | Due from joint ventures | 220 East 42nd Street |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 51.00% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 1,135,000 |  |  |  |
Wells Fargo | 85 Fifth Avenue |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Equity in net gain (loss) on sale of interest in unconsolidated joint venture/real estate |  |  |  |  |  | $ 12,000,000 |  |  |  |
Wells Fargo | Due from joint ventures | 85 Fifth Avenue |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 36.27% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 12,946 |  |  |  |
National Pension Service of Korea / Hines Interest LP / International Investor | One Madison Avenue |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Investment in joint venture aggregate maximum ownership percentage |  |  |  |  |  | 25.00% |  |  |  | 25.00%
National Pension Service of Korea / Hines Interest LP / International Investor | Due from joint ventures | One Madison Avenue |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 25.50% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 1,048,700 |  |  |  |
Korean Institutional Investor / Israeli Institutional Investor | 450 Park Avenue | Third-Party |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Investment in joint venture, partners' ownership percentage |  |  |  |  |  | 25.00% |  |  |  |
Ownership Interest |  |  |  |  |  | 49.90% |  |  |  |
Korean Institutional Investor / Israeli Institutional Investor | Due from joint ventures | 450 Park Avenue |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 25.10% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 337,000 |  |  |  |
Investment in joint venture, ownership percentage |  |  |  |  |  | 25.10% |  |  |  |
Ownership Interest |  |  |  |  |  | 50.10% |  |  |  |
U.S. Affiliate of Mori Trust Co., Ltd | Due from joint ventures | 245 Park Avenue |  |  |  |  |  |  |  |  |  |
General information on each joint venture |  |  |  |  |  |  |  |  |  |
Economic Interest (as a percent) |  |  |  |  |  | 50.10% |  |  |  |
Approximate Square Feet | ft² |  |  |  |  |  | 1,782,793 |  |  |  |

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