Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-23-017867-index-headers.html | 2023-05-04 16:12:26 | |
| 0000950170-23-017867-index.html | 2023-05-04 16:12:26 | |
| 0000950170-23-017867.txt | 2023-05-04 16:12:26 | |
 0000950170-23-017867-xbrl.zip | 42341 | 2023-05-04 16:12:26 |
| altr-20230504.htm | 62243 | 2023-05-04 16:12:26 |
| altr-20230504.xsd | 2463 | 2023-05-04 16:12:26 |
| altr-20230504_htm.xml | 4533 | 2023-05-04 16:12:26 |
| altr-20230504_lab.xml | 12806 | 2023-05-04 16:12:26 |
| altr-20230504_pre.xml | 9449 | 2023-05-04 16:12:26 |
| altr-ex99_1.htm | 1326816 | 2023-05-04 16:12:26 |
| FilingSummary.xml | 1736 | 2023-05-04 16:12:26 |
| Financial_Report.xlsx | 5720 | 2023-05-04 16:12:26 |
| MetaLinks.json | 17443 | 2023-05-04 16:12:26 |
| R1.htm | 38128 | 2023-05-04 16:12:26 |
| report.css | 2767 | 2023-05-04 16:12:26 |
| Show.js | 1084 | 2023-05-04 16:12:26 |