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Real Estate Schedule of Real Estate Properties (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Real Estate Properties [Line Items] |  |  |
Land |  | $ 5,177,647 | $ 5,061,169
Right-of-use assets - finance leases |  | 237,488 | 237,507
Right of use assets - operating leases |  | 168,370 | 169,778
Land held for future development | [1] | 583,700 | 560,355
Buildings and improvements |  | 15,242,197 | 14,291,214
Tenant improvements |  | 3,050,862 | 2,894,025
Furniture, Fixtures and Equipment |  | 52,207 | 51,695
Construction in progress |  | 593,958 | 894,172
Total |  | 25,106,429 | 24,159,915
Less: accumulated depreciation |  | (6,077,270) | (5,883,961)
Total real estate |  | 19,029,159 | 18,275,954
Boston Properties Limited Partnership |  |  |
Real Estate Properties [Line Items] |  |  |
Land |  | 5,082,926 | 4,964,986
Right-of-use assets - finance leases |  | 237,488 | 237,507
Right of use assets - operating leases |  | 168,370 | 169,778
Land held for future development | [1] | 583,700 | 560,355
Buildings and improvements |  | 14,969,392 | 14,014,010
Tenant improvements |  | 3,050,862 | 2,894,025
Furniture, Fixtures and Equipment |  | 52,207 | 51,695
Construction in progress |  | 593,958 | 894,172
Total |  | 24,738,903 | 23,786,528
Less: accumulated depreciation |  | (5,963,676) | (5,772,018)
Total real estate |  | $ 18,775,227 | $ 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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