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Organization and Basis of Presentation - Schedule of Commercial Office Properties (Details) $ in Billions | 9 Months Ended
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Sep. 30, 2021 USD ($) ft² building shares
Real estate properties |
Number of Buildings | building | 61
Approximate Square Feet unaudited (sqft) | ft² | 28,035,572
Weighted Average Occupancy unaudited (as a percent) | 92.10%
Debt and preferred equity investments including investments held by unconsolidated joint ventures | $ | $ 1.1
Debt and preferred equity investments and other financing receivables included in other balance sheet items | $ | $ 0.1
Number of shares to be received on redemption of one unit of limited partnership interests (shares) | shares | 1
Commercial properties |
Real estate properties |
Number of Buildings | building | 54
Approximate Square Feet unaudited (sqft) | ft² | 27,507,388
Weighted Average Occupancy unaudited (as a percent) | 92.00%
Managed office properties |
Real estate properties |
Number of Buildings | building | 2
Approximate Square Feet unaudited (sqft) | ft² | 2,100,000
Consolidated properties |
Real estate properties |
Number of Buildings | building | 33
Approximate Square Feet unaudited (sqft) | ft² | 12,007,951
Consolidated properties | Commercial properties |
Real estate properties |
Number of Buildings | building | 32
Approximate Square Feet unaudited (sqft) | ft² | 11,925,701
Unconsolidated properties |
Real estate properties |
Number of Buildings | building | 28
Approximate Square Feet unaudited (sqft) | ft² | 16,027,621
Unconsolidated properties | Commercial properties |
Real estate properties |
Number of Buildings | building | 22
Approximate Square Feet unaudited (sqft) | ft² | 15,581,687
Manhattan |
Real estate properties |
Number of Buildings | building | 47
Approximate Square Feet unaudited (sqft) | ft² | 26,644,588
Weighted Average Occupancy unaudited (as a percent) | 92.50%
Manhattan | Office |
Real estate properties |
Number of Buildings | building | 24
Approximate Square Feet unaudited (sqft) | ft² | 20,503,228
Weighted Average Occupancy unaudited (as a percent) | 92.50%
Manhattan | Retail |
Real estate properties |
Number of Buildings | building | 11
Approximate Square Feet unaudited (sqft) | ft² | 319,884
Weighted Average Occupancy unaudited (as a percent) | 94.80%
Manhattan | Development/Redevelopment |
Real estate properties |
Number of Buildings | building | 11
Approximate Square Feet unaudited (sqft) | ft² | 5,813,792
Manhattan | Fee Interest |
Real estate properties |
Number of Buildings | building | 1
Approximate Square Feet unaudited (sqft) | ft² | 7,684
Manhattan | Residential |
Real estate properties |
Number of Buildings | building | 7
Approximate Square Feet unaudited (sqft) | ft² | 528,184
Weighted Average Occupancy unaudited (as a percent) | 95.60%
Manhattan | Consolidated properties |
Real estate properties |
Number of Buildings | building | 25
Approximate Square Feet unaudited (sqft) | ft² | 11,062,901
Manhattan | Consolidated properties | Office |
Real estate properties |
Number of Buildings | building | 14
Approximate Square Feet unaudited (sqft) | ft² | 8,499,045
Manhattan | Consolidated properties | Retail |
Real estate properties |
Number of Buildings | building | 2
Approximate Square Feet unaudited (sqft) | ft² | 17,888
Manhattan | Consolidated properties | Development/Redevelopment |
Real estate properties |
Number of Buildings | building | 8
Approximate Square Feet unaudited (sqft) | ft² | 2,538,284
Manhattan | Consolidated properties | Fee Interest |
Real estate properties |
Number of Buildings | building | 1
Approximate Square Feet unaudited (sqft) | ft² | 7,684
Manhattan | Consolidated properties | Residential |
Real estate properties |
Number of Buildings | building | 1
Approximate Square Feet unaudited (sqft) | ft² | 82,250
Manhattan | Unconsolidated properties |
Real estate properties |
Number of Buildings | building | 22
Approximate Square Feet unaudited (sqft) | ft² | 15,581,687
Manhattan | Unconsolidated properties | Office |
Real estate properties |
Number of Buildings | building | 10
Approximate Square Feet unaudited (sqft) | ft² | 12,004,183
Manhattan | Unconsolidated properties | Retail |
Real estate properties |
Number of Buildings | building | 9
Approximate Square Feet unaudited (sqft) | ft² | 301,996
Manhattan | Unconsolidated properties | Development/Redevelopment |
Real estate properties |
Number of Buildings | building | 3
Approximate Square Feet unaudited (sqft) | ft² | 3,275,508
Manhattan | Unconsolidated properties | Fee Interest |
Real estate properties |
Number of Buildings | building | 0
Approximate Square Feet unaudited (sqft) | ft² | 0
Manhattan | Unconsolidated properties | Residential |
Real estate properties |
Number of Buildings | building | 6
Approximate Square Feet unaudited (sqft) | ft² | 445,934
Suburban | Office |
Real estate properties |
Number of Buildings | building | 7
Approximate Square Feet unaudited (sqft) | ft² | 862,800
Weighted Average Occupancy unaudited (as a percent) | 80.50%
Suburban | Consolidated properties | Office |
Real estate properties |
Number of Buildings | building | 7
Approximate Square Feet unaudited (sqft) | ft² | 862,800
Suburban | Unconsolidated properties | Office |
Real estate properties |
Number of Buildings | building | 0
Approximate Square Feet unaudited (sqft) | ft² | 0

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