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| 0001558370-25-005859-index.html | 2025-04-29 16:26:22 | |
| 0001558370-25-005859.txt | 2025-04-29 16:26:22 | |
 0001558370-25-005859-xbrl.zip | 186618 | 2025-04-29 16:26:22 |
| FilingSummary.xml | 29051 | 2025-04-29 16:26:22 |
| Financial_Report.xlsx | 76678 | 2025-04-29 16:26:22 |
| fsp-20250331.xsd | 43192 | 2025-04-29 16:26:22 |
| fsp-20250331x10q.htm | 1484501 | 2025-04-29 16:26:22 |
| fsp-20250331x10q_htm.xml | 740580 | 2025-04-29 16:26:22 |
| fsp-20250331xex31d1.htm | 15780 | 2025-04-29 16:26:22 |
| fsp-20250331xex31d2.htm | 14156 | 2025-04-29 16:26:22 |
| fsp-20250331xex32d1.htm | 6410 | 2025-04-29 16:26:22 |
| fsp-20250331xex32d2.htm | 6411 | 2025-04-29 16:26:22 |
| fsp-20250331_cal.xml | 49101 | 2025-04-29 16:26:22 |
| fsp-20250331_def.xml | 185799 | 2025-04-29 16:26:22 |
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| R1.htm | 51535 | 2025-04-29 16:26:22 |
| R10.htm | 41267 | 2025-04-29 16:26:22 |
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| R9.htm | 53351 | 2025-04-29 16:26:22 |
| report.css | 2767 | 2025-04-29 16:26:22 |
| Show.js | 1085 | 2025-04-29 16:26:22 |