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+ References

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+ References

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Organization (Details) ft² in Millions	12 Months Ended
Organization (Details) ft² in Millions	Dec. 31, 2023 ft² Real_Estate_Properties yr shares	Dec. 31, 2022
Real Estate Properties [Line Items]
Restriction on redemption of OP units from date of issuance (years) \| yr	1
One OP unit is equivalent to one share of Common Stock (in shares) \| shares	1
OP unit conversion rate (in shares) \| shares	1
Vesting Period	4 years
Number of VIEs	8
2012 OPP Units and Vested MYLTIPs
Real Estate Properties [Line Items]
Vesting Period	3 years
Variable Interest Entity, Primary Beneficiary [Member] \| Commercial Real Estate Properties [Member]
Real Estate Properties [Line Items]
Number of VIEs	5
Construction in Progress
Real Estate Properties [Line Items]
Number of real estate properties	10
Net Rentable Area (in sf) \| ft²	2.7
Commercial Real Estate Properties [Member]
Real Estate Properties [Line Items]
Number of real estate properties	188
Net Rentable Area (in sf) \| ft²	53.3
Office and Life Sciences Building [Member]
Real Estate Properties [Line Items]
Number of real estate properties	167
Office and Life Sciences Building [Member] \| Construction in Progress
Real Estate Properties [Line Items]
Number of real estate properties	7
Retail Site [Member]
Real Estate Properties [Line Items]
Number of real estate properties	14
Retail Site [Member] \| Construction in Progress
Real Estate Properties [Line Items]
Number of real estate properties	2
Residential Building
Real Estate Properties [Line Items]
Number of real estate properties	6
Residential Building \| Construction in Progress
Real Estate Properties [Line Items]
Number of real estate properties	1
Hotel [Member]
Real Estate Properties [Line Items]
Number of real estate properties	1
Boston Properties Limited Partnership
Real Estate Properties [Line Items]
General and limited partnership interest in the operating partnership (percent)	89.40%	89.60%