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Subsequent Events (Details) $ in Thousands					12 Months Ended
		Jan. 31, 2025 USD ($) shares	Jan. 22, 2025 USD ($) shares	Jan. 15, 2025 USD ($)	Dec. 31, 2024 USD ($) shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($) shares	Jan. 02, 2025 ft²	Jan. 02, 2024
Subsequent Event [Line Items]
Repayments of Unsecured Debt | $					$ 700,000	$ 500,000	$ 0
Common stock, shares issued					158,253,895	157,019,766
Vesting Period					4 years
Restricted Stock [Member]
Subsequent Event [Line Items]
Common stock, shares issued					83,316	73,762	41,818
Boston Properties Limited Partnership
Subsequent Event [Line Items]
Repayments of Unsecured Debt | $					$ 700,000	$ 500,000	$ 0
Boston Properties Limited Partnership | MYLTIP 2022
Subsequent Event [Line Items]
Number of shares issued							254,061
Boston Properties Limited Partnership | LTIP Units [Member]
Subsequent Event [Line Items]
Number of shares issued					451,044	430,824	280,616
Senior Notes | Boston Properties Limited Partnership
Subsequent Event [Line Items]
Debt | $					$ 10,700,000
3.350% unsecured senior notes | Senior Notes | Boston Properties Limited Partnership
Subsequent Event [Line Items]
Debt | $	[1]				$ 850,000
Debt Instrument, Interest Rate, Stated Percentage	[1]				3.20%
Gateway Commons Complex [Member]
Subsequent Event [Line Items]
Ownership Percentage					50.00%
Gateway Commons Complex [Member] | Unconsolidated Properties
Subsequent Event [Line Items]
Ownership Percentage									50.00%
Subsequent Event [Member] | MYLTIP 2025
Subsequent Event [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award			The 2025 MYLTIP awards consists of three components. Two of the components are each weighted 40% and utilize BXP’s TSR and BXP’s diluted FFO per share growth, respectively, over a three year measurement period as the performance metrics and the third component utilizes a leverage ratio as the performance metric.
Value of MYLTIP Awards | $			$ 12,700
Subsequent Event [Member] | MYLTIP 2022
Subsequent Event [Line Items]
Value of MYLTIP Awards | $		$ 5,400
Final awards percentage of target		59.00%
Vesting Period		3 years
Subsequent Event [Member] | Restricted Stock [Member]
Subsequent Event [Line Items]
Common stock, shares issued		47,649
Subsequent Event [Member] | Boston Properties Limited Partnership | MYLTIP 2025 | Minimum [Member]
Subsequent Event [Line Items]
Common stock available for issuance			0
Subsequent Event [Member] | Boston Properties Limited Partnership | MYLTIP 2025 | Maximum [Member]
Subsequent Event [Line Items]
Common stock available for issuance			354,940
Subsequent Event [Member] | Boston Properties Limited Partnership | MYLTIP 2025 | Target
Subsequent Event [Line Items]
Common stock available for issuance			177,470
Subsequent Event [Member] | Boston Properties Limited Partnership | MYLTIP 2022
Subsequent Event [Line Items]
Forfeitures, in units		177,919
Subsequent Event [Member] | Boston Properties Limited Partnership | LTIP Units [Member]
Subsequent Event [Line Items]
Number of shares issued		388,988
Subsequent Event [Member] | 3.350% unsecured senior notes | Senior Notes | Boston Properties Limited Partnership
Subsequent Event [Line Items]
Debt | $				$ 850,000
Debt Instrument, Interest Rate, Stated Percentage				3.20%
Repayments of Unsecured Debt | $				$ 863,600
Debt Instrument, Increase, Accrued Interest | $				$ 13,600
Subsequent Event [Member] | Gateway Commons Complex [Member] | Unconsolidated Properties
Subsequent Event [Line Items]
Ownership Percentage								50.00%
Net Rentable Area (in sf) | ft²								327,000
[1] See Note 17.

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