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(Common Units) (Narrative) (Details) $ / shares in Units, $ in Thousands				12 Months Ended
	Feb. 01, 2024 USD ($) shares	Feb. 03, 2023 USD ($) shares	Feb. 04, 2022 USD ($) shares	Dec. 31, 2024 USD ($) yr $ / shares shares	Dec. 31, 2023 USD ($) shares
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Vesting Period				4 years
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 | $				$ 1,378,573	$ 1,347,575
MYLTIP | Boston Properties Limited Partnership
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 2021
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Vesting Period	3 years
Final awards percentage of target	112.00%
Value of MYLTIP Awards | $	$ 12,600
Forfeitures, in units	155,625
MYLTIP 2020 [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Vesting Period		3 years
Final awards percentage of target		50.00%
Value of MYLTIP Awards | $		$ 3,800
Forfeitures, in units		152,460
MYLTIP 2019 [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Vesting Period			3 years
Final awards percentage of target			69.00%
Value of MYLTIP Awards | $			$ 8,600
Forfeitures, in units			144,043
OP Units [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
OP Units for redemption (in shares)				1,147,013	102,699
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
Closing price of common stock (in dollars per share) | $ / shares				$ 74.36
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)				122,241	94,863

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