Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-034669-index-headers.html | 2020-02-13 10:17:44 | |
| 0001193125-20-034669-index.html | 2020-02-13 10:17:44 | |
| 0001193125-20-034669.txt | 2020-02-13 10:17:44 | |
 0001193125-20-034669-xbrl.zip | 23275 | 2020-02-13 10:17:44 |
| bf1-20200207.xml | 7669 | 2020-02-13 10:17:44 |
| bf1-20200207.xsd | 4477 | 2020-02-13 10:17:44 |
| bf1-20200207_def.xml | 92200 | 2020-02-13 10:17:44 |
| bf1-20200207_lab.xml | 131615 | 2020-02-13 10:17:44 |
| bf1-20200207_pre.xml | 79900 | 2020-02-13 10:17:44 |
| d886552d497.htm | 6389 | 2020-02-13 10:17:44 |
| FilingSummary.xml | 3449 | 2020-02-13 10:17:44 |
| Financial_Report.xlsx | 7798 | 2020-02-13 10:17:44 |
 g886552g0212233404588.jpg | 2159 | 2020-02-13 10:17:44 |
| R1.htm | 18248 | 2020-02-13 10:17:44 |
| R2.htm | 4528 | 2020-02-13 10:17:44 |
| R3.htm | 14009 | 2020-02-13 10:17:44 |
| R4.htm | 7482 | 2020-02-13 10:17:44 |
| report.css | 2766 | 2020-02-13 10:17:44 |
| Show.js | 1085 | 2020-02-13 10:17:44 |