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|---|---|---|
 0001193125-18-017227-index-headers.html | 2018-01-23 14:42:51 | |
| 0001193125-18-017227-index.html | 2018-01-23 14:42:51 | |
| 0001193125-18-017227.txt | 2018-01-23 14:42:51 | |
 0001193125-18-017227-xbrl.zip | 67465 | 2018-01-23 14:42:51 |
 BarChart1.png | 29241 | 2018-01-23 14:42:51 |
 BarChart2.png | 29307 | 2018-01-23 14:42:51 |
| bf1-20171222.xml | 123791 | 2018-01-23 14:42:51 |
| bf1-20171222.xsd | 14596 | 2018-01-23 14:42:51 |
| bf1-20171222_cal.xml | 4745 | 2018-01-23 14:42:51 |
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| bf1-20171222_lab.xml | 151642 | 2018-01-23 14:42:51 |
| bf1-20171222_pre.xml | 324105 | 2018-01-23 14:42:51 |
| d462910d485bpos.htm | 36564 | 2018-01-23 14:42:51 |
| FilingSummary.xml | 5382 | 2018-01-23 14:42:51 |
 g462910g1219082836654.jpg | 2091 | 2018-01-23 14:42:51 |
| R1.htm | 16188 | 2018-01-23 14:42:51 |
| R10.htm | 112907 | 2018-01-23 14:42:51 |
| R15.htm | 193816 | 2018-01-23 14:42:51 |
| R16.htm | 7477 | 2018-01-23 14:42:51 |
| R2.htm | 135578 | 2018-01-23 14:42:51 |
| R9.htm | 255023 | 2018-01-23 14:42:51 |
| report.css | 2767 | 2018-01-23 14:42:51 |
| Show.js | 1410 | 2018-01-23 14:42:51 |