Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-21-319597-index-headers.html | 2021-11-04 10:36:11 | |
| 0001193125-21-319597-index.html | 2021-11-04 10:36:11 | |
| 0001193125-21-319597.txt | 2021-11-04 10:36:11 | |
 0001193125-21-319597-xbrl.zip | 19888 | 2021-11-04 10:36:11 |
| altm-20211103.xsd | 2915 | 2021-11-04 10:36:11 |
| altm-20211103_lab.xml | 19656 | 2021-11-04 10:36:11 |
| altm-20211103_pre.xml | 12330 | 2021-11-04 10:36:11 |
| d253389d8k.htm | 25530 | 2021-11-04 10:36:11 |
| d253389d8k_htm.xml | 3665 | 2021-11-04 10:36:11 |
| d253389dex991.htm | 132970 | 2021-11-04 10:36:11 |
| FilingSummary.xml | 1735 | 2021-11-04 10:36:11 |
| Financial_Report.xlsx | 5758 | 2021-11-04 10:36:11 |
 g253389dsp9g.jpg | 8451 | 2021-11-04 10:36:11 |
| MetaLinks.json | 20188 | 2021-11-04 10:36:11 |
| R1.htm | 43498 | 2021-11-04 10:36:11 |
| report.css | 2767 | 2021-11-04 10:36:11 |
| Show.js | 1085 | 2021-11-04 10:36:11 |