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|---|---|---|
 0001193125-21-257403-index-headers.html | 2021-08-26 15:01:49 | |
| 0001193125-21-257403-index.html | 2021-08-26 15:01:49 | |
| 0001193125-21-257403.txt | 2021-08-26 15:01:49 | |
 0001193125-21-257403-xbrl.zip | 627528 | 2021-08-26 15:01:49 |
| bf11-20210820.xsd | 9365 | 2021-08-26 15:01:49 |
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| d173828dex9910a.htm | 2162 | 2021-08-26 15:01:49 |
| FilingSummary.xml | 5989 | 2021-08-26 15:01:49 |
| Financial_Report.xlsx | 45251 | 2021-08-26 15:01:49 |
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 g173828g1g56p99.jpg | 40795 | 2021-08-26 15:01:49 |
 g173828g56p99.jpg | 40795 | 2021-08-26 15:01:49 |
 g173828g72w94.jpg | 37178 | 2021-08-26 15:01:49 |
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| R3.htm | 150292 | 2021-08-26 15:01:49 |
| R4.htm | 145339 | 2021-08-26 15:01:49 |
| R5.htm | 104749 | 2021-08-26 15:01:49 |
| R6.htm | 125001 | 2021-08-26 15:01:49 |
| R7.htm | 119999 | 2021-08-26 15:01:49 |
| report.css | 2767 | 2021-08-26 15:01:49 |
| Show.js | 1085 | 2021-08-26 15:01:49 |