Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-21-257284-index-headers.html | 2021-08-26 13:25:24 | |
| 0001193125-21-257284-index.html | 2021-08-26 13:25:24 | |
| 0001193125-21-257284.txt | 2021-08-26 13:25:24 | |
 0001193125-21-257284-xbrl.zip | 629466 | 2021-08-26 13:25:24 |
| bf1-20210826.xsd | 9624 | 2021-08-26 13:25:24 |
| bf1-20210826_cal.xml | 4744 | 2021-08-26 13:25:24 |
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| d187610d485bpos.htm | 3644866 | 2021-08-26 13:25:24 |
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| d187610dex9910a.htm | 2129 | 2021-08-26 13:25:24 |
| FilingSummary.xml | 6270 | 2021-08-26 13:25:24 |
| Financial_Report.xlsx | 44329 | 2021-08-26 13:25:24 |
 g187610g1g56p99.jpg | 40795 | 2021-08-26 13:25:24 |
 g187610g56p99.jpg | 40795 | 2021-08-26 13:25:24 |
 g187610g72w94.jpg | 37178 | 2021-08-26 13:25:24 |
 g187610g92r27.jpg | 2646 | 2021-08-26 13:25:24 |
| MetaLinks.json | 388643 | 2021-08-26 13:25:24 |
| R1.htm | 18258 | 2021-08-26 13:25:24 |
| R2.htm | 126237 | 2021-08-26 13:25:24 |
| R3.htm | 134831 | 2021-08-26 13:25:24 |
| R4.htm | 141243 | 2021-08-26 13:25:24 |
| R5.htm | 103730 | 2021-08-26 13:25:24 |
| R6.htm | 111446 | 2021-08-26 13:25:24 |
| R7.htm | 119024 | 2021-08-26 13:25:24 |
| report.css | 2767 | 2021-08-26 13:25:24 |
| Show.js | 1085 | 2021-08-26 13:25:24 |