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Real Estate Schedule of Real Estate Properties (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Real Estate Properties [Line Items]    
Land $ 5,319,140 $ 5,318,724
Right-of-use assets - finance leases 372,845 372,922
Operating Lease, Right-of-Use Asset 330,129 334,767
Land held for future development [1] 730,944 714,050
Buildings and improvements 17,198,604 17,149,702
Tenant improvements 3,902,214 3,866,371
Furniture, Fixtures and Equipment 56,532 57,136
Construction in progress 907,989 764,640
Total 28,818,397 28,578,312
Less: accumulated depreciation (7,699,234) (7,528,057)
Total real estate 21,119,163 21,050,255
Boston Properties Limited Partnership    
Real Estate Properties [Line Items]    
Land 5,224,431 5,224,015
Right-of-use assets - finance leases 372,845 372,922
Operating Lease, Right-of-Use Asset 330,129 334,767
Land held for future development [1] 730,944 714,050
Buildings and improvements 16,927,048 16,878,146
Tenant improvements 3,902,214 3,866,371
Furniture, Fixtures and Equipment 56,532 57,136
Construction in progress 907,989 764,640
Total 28,452,132 28,212,047
Less: accumulated depreciation (7,567,356) (7,397,882)
Total real estate $ 20,884,776 $ 20,814,165
[1] Includes pre-development costs.