XML 16 R2.htm IDEA: XBRL DOCUMENT
v3.23.1

N-2 | May 02, 2023
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Cover [Abstract] |
Entity Central Index Key | 0001031316
Amendment Flag | false
Securities Act File Number | 001-32470
Document Type | 8-K
Entity Registrant Name | Franklin Street Properties Corp.
Entity Address, Address Line One | 401 Edgewater Place
Entity Address, Address Line Two | Suite 200
Entity Address, City or Town | Wakefield
Entity Address, State or Province | MA
Entity Address, Postal Zip Code | 01880
City Area Code | 781
Local Phone Number | 557-1300
Entity Emerging Growth Company | false

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