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Noncontrolling Interests Common Units Distributions (Details) - $ / shares | Jul. 31, 2025 | Apr. 30, 2025 | Jan. 30, 2025 | Oct. 31, 2024 | Jul. 31, 2024 | Apr. 30, 2024 | Jan. 30, 2024 | Sep. 08, 2025
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dividends Payable [Line Items] |  |  |  |  |  |  |  |
Distributions Payable, Amount Per Unit |  |  |  |  |  |  |  | $ 0.70
Dividends, Per Unit, Cash Paid | $ 0.98 | $ 0.98 | $ 0.98 | $ 0.98 | $ 0.98 | $ 0.98 | $ 0.98 |
Boston Properties Limited Partnership |  |  |  |  |  |  |  |
Dividends Payable [Line Items] |  |  |  |  |  |  |  |
Distributions Payable, Amount Per Unit |  |  |  |  |  |  |  | 0.70
Dividends, Per Unit, Cash Paid | 0.98 | 0.98 | 0.98 | 0.98 | 0.98 | 0.98 | 0.98 |
Boston Properties Limited Partnership | Unvested MYLTIP Units [Member] |  |  |  |  |  |  |  |
Dividends Payable [Line Items] |  |  |  |  |  |  |  |
Distributions Payable, Amount Per Unit |  |  |  |  |  |  |  | 0.070
Dividends, Per Unit, Cash Paid | 0.098 | 0.098 | 0.098 | 0.098 | 0.098 | 0.098 | 0.098 |
Boston Properties Limited Partnership | Op units and LTIP units |  |  |  |  |  |  |  |
Dividends Payable [Line Items] |  |  |  |  |  |  |  |
Distributions Payable, Amount Per Unit |  |  |  |  |  |  |  | $ 0.70
Dividends, Per Unit, Cash Paid | $ 0.98 | $ 0.98 | $ 0.98 | $ 0.98 | $ 0.98 | $ 0.98 | $ 0.98 |

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- Definition Aggregate dividends paid during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1 + Details
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- Definition The per share amount of a dividend declared, but not paid, as of the financial reporting date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-3 + Details
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