Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-16-429992-index-headers.html | 2016-01-14 16:59:38 | |
| 0001193125-16-429992-index.html | 2016-01-14 16:59:38 | |
| 0001193125-16-429992.txt | 2016-01-14 16:59:38 | |
 0001193125-16-429992-xbrl.zip | 31382 | 2016-01-14 16:59:38 |
| bf1-20151231.xml | 8598 | 2016-01-14 16:59:38 |
| bf1-20151231.xsd | 8184 | 2016-01-14 16:59:38 |
| bf1-20151231_cal.xml | 4728 | 2016-01-14 16:59:38 |
| bf1-20151231_def.xml | 232900 | 2016-01-14 16:59:38 |
| bf1-20151231_lab.xml | 134313 | 2016-01-14 16:59:38 |
| bf1-20151231_pre.xml | 161589 | 2016-01-14 16:59:38 |
| d104076d497.htm | 8575 | 2016-01-14 16:59:38 |
| FilingSummary.xml | 3458 | 2016-01-14 16:59:38 |
| Financial_Report.xlsx | 8156 | 2016-01-14 16:59:38 |
 g104076covltr_logo.jpg | 5578 | 2016-01-14 16:59:38 |
| R1.htm | 16187 | 2016-01-14 16:59:38 |
| R2.htm | 4709 | 2016-01-14 16:59:38 |
| R3.htm | 14610 | 2016-01-14 16:59:38 |
| R4.htm | 7478 | 2016-01-14 16:59:38 |
| report.css | 2767 | 2016-01-14 16:59:38 |
| Show.js | 1410 | 2016-01-14 16:59:38 |