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Real Estate Schedule of Real Estate Properties (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Real Estate Properties [Line Items] |  |  |
Land |  | $ 5,059,311 | $ 5,061,169
Right-of-use assets - finance leases |  | 237,501 | 237,507
Right of use assets - operating leases |  | 169,248 | 169,778
Land held for future development | [1] | 582,511 | 560,355
Buildings and improvements |  | 14,410,242 | 14,291,214
Tenant improvements |  | 2,951,838 | 2,894,025
Furniture, Fixtures and Equipment |  | 51,549 | 51,695
Construction in progress |  | 846,775 | 894,172
Total |  | 24,308,975 | 24,159,915
Less: accumulated depreciation |  | (5,995,760) | (5,883,961)
Total real estate |  | 18,313,215 | 18,275,954
Boston Properties Limited Partnership |  |  |
Real Estate Properties [Line Items] |  |  |
Land |  | 4,963,374 | 4,964,986
Right-of-use assets - finance leases |  | 237,501 | 237,507
Right of use assets - operating leases |  | 169,248 | 169,778
Land held for future development | [1] | 582,511 | 560,355
Buildings and improvements |  | 14,133,781 | 14,014,010
Tenant improvements |  | 2,951,838 | 2,894,025
Furniture, Fixtures and Equipment |  | 51,549 | 51,695
Construction in progress |  | 846,775 | 894,172
Total |  | 23,936,577 | 23,786,528
Less: accumulated depreciation |  | (5,882,385) | (5,772,018)
Total real estate |  | $ 18,054,192 | $ 18,014,510
[1] | Includes pre-development costs.

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- Definition Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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- Definition Amount, after accumulated amortization, of right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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- Definition Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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