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Organization (Details) | 12 Months Ended
--- | ---
Dec. 31, 2024 property
Properties |
Number of properties | 14
FSP Investments LLC |
Organization |
Ownership interest (as a percent) | 100.00%
FSP Property Management LLC |
Organization |
Ownership interest (as a percent) | 100.00%
FSP Holdings LLC |
Organization |
Ownership interest (as a percent) | 100.00%
FSP Protective TRS Corp. |
Organization |
Ownership interest (as a percent) | 100.00%

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- Definition Percentage investment held by members or limited partners of 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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