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MYLTIPS performance (Details) - USD ($) |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Jan. 31, 2025 | Feb. 01, 2024 | Feb. 03, 2023 | Dec. 31, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vesting Period |  |  |  | 4 years
MYLTIP 2022 | Boston Properties Limited Partnership |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Final awards percentage of target | 59.00% |  |  |
Value of MYLTIP Awards | $ 5,400 |  |  |
Forfeitures, in units | 177,919 |  |  |
MYLTIP 2021 | Boston Properties Limited Partnership |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Final awards percentage of target |  | 112.00% |  |
Value of MYLTIP Awards |  | $ 12,600 |  |
Forfeitures, in units |  | 155,625 |  |
MYLTIP 2020 | Boston Properties Limited Partnership |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Final awards percentage of target |  |  | 50.00% |
Value of MYLTIP Awards |  |  | $ 3,800 |
Forfeitures, in units |  |  | 152,460 |
2020-2022 Vested MYLTIPs [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vesting Period |  |  |  | 3 years

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