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Real Estate Schedule of Real Estate Properties (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Real Estate Properties [Line Items]    
Land $ 5,243,760 $ 5,318,724
Right-of-use assets - finance leases 372,470 372,922
Right of use assets - operating leases 325,841 334,767
Land held for future development [2] 518,492 [1] 714,050
Buildings and improvements 16,908,060 17,149,702
Tenant improvements 4,042,150 3,866,371
Furniture, Fixtures and Equipment 54,160 57,136
Construction in progress 1,475,257 764,640
Total 28,940,190 28,578,312
Less: accumulated depreciation (8,040,311) (7,528,057)
Total real estate 20,899,879 21,050,255
Boston Properties Limited Partnership    
Real Estate Properties [Line Items]    
Land 5,151,246 5,224,015
Right-of-use assets - finance leases 372,470 372,922
Right of use assets - operating leases 325,841 334,767
Land held for future development [2] 518,492 [3] 714,050
Buildings and improvements 16,643,092 16,878,146
Tenant improvements 4,042,150 3,866,371
Furniture, Fixtures and Equipment 54,160 57,136
Construction in progress 1,475,257 764,640
Total 28,582,708 28,212,047
Less: accumulated depreciation (7,906,629) (7,397,882)
Total real estate $ 20,676,079 $ 20,814,165
[1] Includes pre-development costs.
[2] Includes pre-development costs.
[3] Includes pre-development costs.