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Real Estate Schedule of Real Estate Properties (Details) - USD ($)
$ in Thousands
Sep. 30, 2024
Dec. 31, 2023
Real Estate Properties [Line Items]    
Land $ 5,318,724 $ 5,251,224
Right-of-use assets - finance leases [1] 372,896 401,680
Operating Lease, Right-of-Use Asset [1] 339,804 324,298
Land held for future development [2] 690,774 697,061
Buildings and improvements 16,898,821 16,607,756
Tenant improvements 3,782,391 3,592,172
Furniture, Fixtures and Equipment 54,992 53,716
Construction in progress 812,122 547,280
Total 28,270,524 27,475,187
Less: accumulated depreciation (7,369,545) (6,881,728)
Total real estate 20,900,979 20,593,459
Boston Properties Limited Partnership    
Real Estate Properties [Line Items]    
Land 5,224,015 5,156,515
Right-of-use assets - finance leases [1] 372,896 401,680
Operating Lease, Right-of-Use Asset [1] 339,804 324,298
Land held for future development [2] 690,774 697,061
Buildings and improvements 16,627,265 16,336,200
Tenant improvements 3,782,391 3,592,172
Furniture, Fixtures and Equipment 54,992 53,716
Construction in progress 812,122 547,280
Total 27,904,259 27,108,922
Less: accumulated depreciation (7,241,074) (6,758,361)
Total real estate $ 20,663,185 $ 20,350,561
[1] See Note 4.
[2] Includes pre-development costs.