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| 0001331463-25-000031-index.html | 2025-02-14 12:04:48 | |
| 0001331463-25-000031.txt | 2025-02-14 12:04:48 | |
 0001331463-25-000031-xbrl.zip | 19452 | 2025-02-14 12:04:48 |
| ex991-fourthquarter2024ear.htm | 116289 | 2025-02-14 12:04:48 |
| fhlbbost-20250214.htm | 28319 | 2025-02-14 12:04:48 |
| fhlbbost-20250214.xsd | 2060 | 2025-02-14 12:04:48 |
| fhlbbost-20250214_htm.xml | 2447 | 2025-02-14 12:04:48 |
| fhlbbost-20250214_lab.xml | 19771 | 2025-02-14 12:04:48 |
| fhlbbost-20250214_pre.xml | 11243 | 2025-02-14 12:04:48 |
| FilingSummary.xml | 1659 | 2025-02-14 12:04:48 |
| Financial_Report.xlsx | 5585 | 2025-02-14 12:04:48 |
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| R1.htm | 33420 | 2025-02-14 12:04:48 |
| report.css | 2767 | 2025-02-14 12:04:48 |
| Show.js | 1085 | 2025-02-14 12:04:48 |