Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-22-014821-index-headers.html | 2022-08-04 16:44:34 | |
| 0000950170-22-014821-index.html | 2022-08-04 16:44:34 | |
| 0000950170-22-014821.txt | 2022-08-04 16:44:34 | |
 0000950170-22-014821-xbrl.zip | 40691 | 2022-08-04 16:44:34 |
| altr-20220804.htm | 61521 | 2022-08-04 16:44:34 |
| altr-20220804.xsd | 2463 | 2022-08-04 16:44:34 |
| altr-20220804_htm.xml | 4533 | 2022-08-04 16:44:34 |
| altr-20220804_lab.xml | 12798 | 2022-08-04 16:44:34 |
| altr-20220804_pre.xml | 9449 | 2022-08-04 16:44:34 |
| altr-ex99_1.htm | 1230420 | 2022-08-04 16:44:34 |
| FilingSummary.xml | 1736 | 2022-08-04 16:44:34 |
| Financial_Report.xlsx | 5715 | 2022-08-04 16:44:34 |
| MetaLinks.json | 16903 | 2022-08-04 16:44:34 |
| R1.htm | 38574 | 2022-08-04 16:44:34 |
| report.css | 2767 | 2022-08-04 16:44:34 |
| Show.js | 1084 | 2022-08-04 16:44:34 |