Real Estate Schedule of Real Estate Properties (Details) - USD ($) $ in Thousands		Dec. 31, 2023		Dec. 31, 2022
Real Estate Properties [Line Items]
Land		$ 5,251,224		$ 5,189,811
Right-of-use assets - finance leases		401,680	[1]	237,510
Operating Lease, Right-of-Use Asset	[1]	324,298		167,351
Land held for future development	[3]	697,061	[2]	721,501
Buildings and improvements		16,607,756		15,820,724
Tenant improvements		3,592,172		3,200,743
Furniture, Fixtures and Equipment		53,716		50,310
Construction in progress		547,280		406,574
Total		27,475,187		25,794,524
Less: accumulated depreciation		(6,881,728)		(6,298,082)
Total real estate		20,593,459		19,496,442
Boston Properties Limited Partnership
Real Estate Properties [Line Items]
Land		5,156,515		5,095,102
Right-of-use assets - finance leases		401,680	[1]	237,510
Operating Lease, Right-of-Use Asset	[1]	324,298		167,351
Land held for future development	[3]	697,061	[4]	721,501
Buildings and improvements		16,336,200		15,547,919
Tenant improvements		3,592,172		3,200,743
Furniture, Fixtures and Equipment		53,716		50,310
Construction in progress		547,280		406,574
Total		27,108,922		25,427,010
Less: accumulated depreciation		(6,758,361)		(6,180,474)
Total real estate		$ 20,350,561		$ 19,246,536

[1] See Note 4.

[2] Includes pre-development costs.

[3] Includes pre-development costs.

[4] Includes pre-development costs.