Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-21-313521-index-headers.html | 2021-10-29 17:06:03 | |
| 0001193125-21-313521-index.html | 2021-10-29 17:06:03 | |
| 0001193125-21-313521.txt | 2021-10-29 17:06:03 | |
 0001193125-21-313521-xbrl.zip | 294762 | 2021-10-29 17:06:03 |
| bvs-20211029.xsd | 2862 | 2021-10-29 17:06:03 |
| bvs-20211029_lab.xml | 18888 | 2021-10-29 17:06:03 |
| bvs-20211029_pre.xml | 11841 | 2021-10-29 17:06:03 |
| d248592d8k.htm | 56588 | 2021-10-29 17:06:03 |
| d248592d8k_htm.xml | 3472 | 2021-10-29 17:06:03 |
| d248592dex101.htm | 1661367 | 2021-10-29 17:06:03 |
| d248592dex991.htm | 13836 | 2021-10-29 17:06:03 |
| FilingSummary.xml | 1750 | 2021-10-29 17:06:03 |
| Financial_Report.xlsx | 5728 | 2021-10-29 17:06:03 |
 g248592g1029060959722.jpg | 3510 | 2021-10-29 17:06:03 |
| MetaLinks.json | 19116 | 2021-10-29 17:06:03 |
| R1.htm | 41939 | 2021-10-29 17:06:03 |
| report.css | 2767 | 2021-10-29 17:06:03 |
| Show.js | 1085 | 2021-10-29 17:06:03 |