XML 66 R44.htm IDEA: XBRL DOCUMENT
v3.25.4

Organization (Details) | Dec. 31, 2025 ft² Real_Estate_Properties yr shares | Dec. 31, 2024
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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 |
LTIP Unit Conversion Rate | shares | 1 |
Number of VIEs | 11 |
Unconsolidated Joint Ventures [Member] |  |
Real Estate Properties [Line Items] |  |
Number of VIEs | 3 |
Variable Interest Entity, Primary Beneficiary [Member] |  |
Real Estate Properties [Line Items] |  |
Number of VIEs | 8 |
Variable Interest Entity, Primary Beneficiary [Member] | Commercial Real Estate Properties [Member] |  |
Real Estate Properties [Line Items] |  |
Number of VIEs | 6 |
Construction in Progress |  |
Real Estate Properties [Line Items] |  |
Number of real estate properties | 8 |
Net Rentable Area (in sf) | ft² | 3,500,000 |
Commercial Real Estate Properties [Member] |  |
Real Estate Properties [Line Items] |  |
Number of real estate properties | 179 |
Net Rentable Area (in sf) | ft² | 52,600,000 |
Office Building [Member] |  |
Real Estate Properties [Line Items] |  |
Number of real estate properties | 157 |
Net Rentable Area (in sf) | ft² | 409,200 |
Office Building [Member] | Construction in Progress |  |
Real Estate Properties [Line Items] |  |
Number of real estate properties | 4 |
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 | 1 |
Residential Building |  |
Real Estate Properties [Line Items] |  |
Number of real estate properties | 7 |
Net Rentable Area (in sf) | ft² | 684,500 |
Residential Building | Construction in Progress |  |
Real Estate Properties [Line Items] |  |
Number of real estate properties | 3 |
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) | 89.70% | 89.70%

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- Definition Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482987/272-10-50-3 + Details
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- Definition Net rentable area for properties owned. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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