Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-15-235103-index-headers.html | 2015-06-25 16:05:14 | |
| 0001193125-15-235103-index.html | 2015-06-25 16:05:14 | |
| 0001193125-15-235103.txt | 2015-06-25 16:05:14 | |
 0001193125-15-235103-xbrl.zip | 240612 | 2015-06-25 16:05:14 |
| bv-20150430.xml | 1728759 | 2015-06-25 16:05:14 |
| bv-20150430.xsd | 79164 | 2015-06-25 16:05:14 |
| bv-20150430_cal.xml | 145631 | 2015-06-25 16:05:14 |
| bv-20150430_def.xml | 326669 | 2015-06-25 16:05:14 |
| bv-20150430_lab.xml | 746056 | 2015-06-25 16:05:14 |
| bv-20150430_pre.xml | 586696 | 2015-06-25 16:05:14 |
| d929871d10k.htm | 1357775 | 2015-06-25 16:05:14 |
| d929871dex1026.htm | 16372 | 2015-06-25 16:05:14 |
| d929871dex1027.htm | 15608 | 2015-06-25 16:05:14 |
| d929871dex231.htm | 1270 | 2015-06-25 16:05:14 |
| d929871dex311.htm | 8384 | 2015-06-25 16:05:14 |
| d929871dex312.htm | 8386 | 2015-06-25 16:05:14 |
| d929871dex321.htm | 2817 | 2015-06-25 16:05:14 |
| d929871dex322.htm | 2802 | 2015-06-25 16:05:14 |
| FilingSummary.xml | 57346 | 2015-06-25 16:05:14 |
| Financial_Report.xlsx | 127220 | 2015-06-25 16:05:14 |
 g929871ex10_26footer.jpg | 23283 | 2015-06-25 16:05:14 |
 g929871ex10_26logo.jpg | 13892 | 2015-06-25 16:05:14 |
 g929871ex10_27footer.jpg | 25447 | 2015-06-25 16:05:14 |
 g929871ex10_27logo.jpg | 13673 | 2015-06-25 16:05:14 |
 g929871g44z41.jpg | 60826 | 2015-06-25 16:05:14 |
| R1.htm | 30112 | 2015-06-25 16:05:14 |
| R10.htm | 64027 | 2015-06-25 16:05:14 |
| R11.htm | 47464 | 2015-06-25 16:05:14 |
| R12.htm | 81882 | 2015-06-25 16:05:14 |
| R13.htm | 15551 | 2015-06-25 16:05:14 |
| R14.htm | 29763 | 2015-06-25 16:05:14 |
| R15.htm | 8070 | 2015-06-25 16:05:14 |
| R16.htm | 39244 | 2015-06-25 16:05:14 |
| R17.htm | 13037 | 2015-06-25 16:05:14 |
| R18.htm | 11807 | 2015-06-25 16:05:14 |
| R19.htm | 12218 | 2015-06-25 16:05:14 |
| R2.htm | 97388 | 2015-06-25 16:05:14 |
| R20.htm | 68654 | 2015-06-25 16:05:14 |
| R21.htm | 19289 | 2015-06-25 16:05:14 |
| R22.htm | 64054 | 2015-06-25 16:05:14 |
| R23.htm | 30748 | 2015-06-25 16:05:14 |
| R24.htm | 5068 | 2015-06-25 16:05:14 |
| R25.htm | 8471 | 2015-06-25 16:05:14 |
| R26.htm | 15982 | 2015-06-25 16:05:14 |
| R27.htm | 68307 | 2015-06-25 16:05:14 |
| R28.htm | 14553 | 2015-06-25 16:05:14 |
| R29.htm | 137064 | 2015-06-25 16:05:14 |
| R3.htm | 18148 | 2015-06-25 16:05:14 |
| R30.htm | 6032 | 2015-06-25 16:05:14 |
| R31.htm | 46383 | 2015-06-25 16:05:14 |
| R32.htm | 80424 | 2015-06-25 16:05:14 |
| R33.htm | 13639 | 2015-06-25 16:05:14 |
| R34.htm | 15214 | 2015-06-25 16:05:14 |
| R35.htm | 7987 | 2015-06-25 16:05:14 |
| R36.htm | 35361 | 2015-06-25 16:05:14 |
| R37.htm | 9822 | 2015-06-25 16:05:14 |
| R38.htm | 63426 | 2015-06-25 16:05:14 |
| R39.htm | 17678 | 2015-06-25 16:05:14 |
| R4.htm | 68869 | 2015-06-25 16:05:14 |
| R40.htm | 67295 | 2015-06-25 16:05:14 |
| R41.htm | 17708 | 2015-06-25 16:05:14 |
| R42.htm | 13420 | 2015-06-25 16:05:14 |
| R43.htm | 66451 | 2015-06-25 16:05:14 |
| R44.htm | 20968 | 2015-06-25 16:05:14 |
| R45.htm | 15941 | 2015-06-25 16:05:14 |
| R46.htm | 26662 | 2015-06-25 16:05:14 |
| R47.htm | 22231 | 2015-06-25 16:05:14 |
| R48.htm | 32442 | 2015-06-25 16:05:14 |
| R49.htm | 21100 | 2015-06-25 16:05:14 |
| R5.htm | 10403 | 2015-06-25 16:05:14 |
| R50.htm | 16982 | 2015-06-25 16:05:14 |
| R51.htm | 9707 | 2015-06-25 16:05:14 |
| R52.htm | 17449 | 2015-06-25 16:05:14 |
| R53.htm | 33446 | 2015-06-25 16:05:14 |
| R54.htm | 55600 | 2015-06-25 16:05:14 |
| R55.htm | 24017 | 2015-06-25 16:05:14 |
| R56.htm | 9776 | 2015-06-25 16:05:14 |
| R57.htm | 49375 | 2015-06-25 16:05:14 |
| R58.htm | 46006 | 2015-06-25 16:05:14 |
| R59.htm | 11802 | 2015-06-25 16:05:14 |
| R6.htm | 21322 | 2015-06-25 16:05:14 |
| R60.htm | 8444 | 2015-06-25 16:05:14 |
| R61.htm | 8950 | 2015-06-25 16:05:14 |
| R62.htm | 34354 | 2015-06-25 16:05:14 |
| R63.htm | 33583 | 2015-06-25 16:05:14 |
| R64.htm | 18750 | 2015-06-25 16:05:14 |
| R65.htm | 16716 | 2015-06-25 16:05:14 |
| R66.htm | 44408 | 2015-06-25 16:05:14 |
| R67.htm | 68570 | 2015-06-25 16:05:14 |
| R68.htm | 24945 | 2015-06-25 16:05:14 |
| R69.htm | 91593 | 2015-06-25 16:05:14 |
| R7.htm | 85688 | 2015-06-25 16:05:14 |
| R70.htm | 27108 | 2015-06-25 16:05:14 |
| R71.htm | 51565 | 2015-06-25 16:05:14 |
| R72.htm | 66608 | 2015-06-25 16:05:14 |
| R73.htm | 26034 | 2015-06-25 16:05:14 |
| R74.htm | 38484 | 2015-06-25 16:05:14 |
| R75.htm | 11996 | 2015-06-25 16:05:14 |
| R76.htm | 41974 | 2015-06-25 16:05:14 |
| R77.htm | 31133 | 2015-06-25 16:05:14 |
| R78.htm | 35690 | 2015-06-25 16:05:14 |
| R79.htm | 45337 | 2015-06-25 16:05:14 |
| R8.htm | 118942 | 2015-06-25 16:05:14 |
| R80.htm | 16374 | 2015-06-25 16:05:14 |
| R81.htm | 91778 | 2015-06-25 16:05:14 |
| R82.htm | 48690 | 2015-06-25 16:05:14 |
| R83.htm | 4606 | 2015-06-25 16:05:14 |
| R84.htm | 9117 | 2015-06-25 16:05:14 |
| R85.htm | 17774 | 2015-06-25 16:05:14 |
| R86.htm | 17178 | 2015-06-25 16:05:14 |
| R87.htm | 87825 | 2015-06-25 16:05:14 |
| R88.htm | 15766 | 2015-06-25 16:05:14 |
| R9.htm | 6363 | 2015-06-25 16:05:14 |
| report.css | 2767 | 2015-06-25 16:05:14 |
| Show.js | 1410 | 2015-06-25 16:05:14 |