Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-22-090062-index-headers.html | 2022-03-30 17:23:59 | |
| 0001193125-22-090062-index.html | 2022-03-30 17:23:59 | |
| 0001193125-22-090062.txt | 2022-03-30 17:23:59 | |
 0001193125-22-090062-xbrl.zip | 24471 | 2022-03-30 17:23:59 |
| alvr-20211231.xsd | 4655 | 2022-03-30 17:23:59 |
| alvr-20211231_cal.xml | 657 | 2022-03-30 17:23:59 |
| alvr-20211231_def.xml | 1662 | 2022-03-30 17:23:59 |
| alvr-20211231_lab.xml | 22410 | 2022-03-30 17:23:59 |
| alvr-20211231_pre.xml | 17948 | 2022-03-30 17:23:59 |
| d340463d10ka.htm | 123460 | 2022-03-30 17:23:59 |
| d340463d10ka_htm.xml | 7879 | 2022-03-30 17:23:59 |
| d340463dex311.htm | 11610 | 2022-03-30 17:23:59 |
| d340463dex312.htm | 11512 | 2022-03-30 17:23:59 |
| d340463dex321.htm | 4404 | 2022-03-30 17:23:59 |
| d340463dex322.htm | 4681 | 2022-03-30 17:23:59 |
| FilingSummary.xml | 1827 | 2022-03-30 17:23:59 |
| Financial_Report.xlsx | 7170 | 2022-03-30 17:23:59 |
| MetaLinks.json | 26740 | 2022-03-30 17:23:59 |
| R1.htm | 74496 | 2022-03-30 17:23:59 |
| report.css | 2767 | 2022-03-30 17:23:59 |
| Show.js | 1085 | 2022-03-30 17:23:59 |