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|---|---|---|
 0001193125-25-001237-index-headers.html | 2025-01-03 11:37:51 | |
| 0001193125-25-001237-index.html | 2025-01-03 11:37:51 | |
| 0001193125-25-001237.txt | 2025-01-03 11:37:51 | |
 0001193125-25-001237-xbrl.zip | 1146513 | 2025-01-03 11:37:51 |
| bf1-20241221.xsd | 75262 | 2025-01-03 11:37:51 |
| d916838dex99906cert.htm | 4320 | 2025-01-03 11:37:51 |
| d916838dex99cert.htm | 13438 | 2025-01-03 11:37:51 |
| d916838dncsr.htm | 17425769 | 2025-01-03 11:37:51 |
| d916838dncsr_htm.xml | 311911 | 2025-01-03 11:37:51 |
| FilingSummary.xml | 3752 | 2025-01-03 11:37:51 |
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| R1.htm | 12721 | 2025-01-03 11:37:51 |
| R2.htm | 244995 | 2025-01-03 11:37:51 |
| R3.htm | 58710 | 2025-01-03 11:37:51 |
| R4.htm | 33969 | 2025-01-03 11:37:51 |
| report.css | 2767 | 2025-01-03 11:37:51 |
| Show.js | 1085 | 2025-01-03 11:37:51 |