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v3.25.3

(Common Units) (Narrative) (Details) $ / shares in Units, $ in Thousands |  | 9 Months Ended |
--- | --- | --- | ---
Jan. 31, 2025 USD ($) shares | Sep. 30, 2025 USD ($) yr $ / shares shares | Dec. 31, 2024 USD ($)
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |
Closing price of common stock (in dollars per share) | $ / shares |  | $ 74.34 |
Boston Properties Limited Partnership |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |
Redeemable Noncontrolling Interest, Equity, Preferred, Carrying Amount | $ |  | $ 1,400,260 | $ 1,378,573
MYLTIP |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |
Vesting Period |  | 3 years |
Unvested MYLTIP Units [Member] |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |
unvested MYLTIP distributions as compared to total distributions (percentage) |  | 10.00% |
MYLTIP 2022 |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |
Vesting Period | 3 years |  |
Final awards percentage of target | 59.00% |  |
Value of MYLTIP Awards | $ | $ 5,400 |  |
MYLTIP 2022 | Boston Properties Limited Partnership |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |
Forfeitures, in units | 177,919 |  |
OP Units [Member] |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |
OP Units for redemption (in shares) |  | 143,823 |
Restriction on redemption of OP Unit to Common Stock (in years) | yr |  | 1 |
Redemption of OP Unit equivalent to Common Stock (in shares) |  | 1 |
Redeemable Noncontrolling Interest, Equity, Preferred, Carrying Amount | $ |  | $ 1,400,000 |
Vested 2012 OPP units and MYLTIPS |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |
OP Units for redemption (in shares) |  | 37,944 |

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