Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-314483-index-headers.html | 2020-12-10 09:23:53 | |
| 0001193125-20-314483-index.html | 2020-12-10 09:23:53 | |
| 0001193125-20-314483.txt | 2020-12-10 09:23:53 | |
 0001193125-20-314483-xbrl.zip | 11325 | 2020-12-10 09:23:53 |
| altm-20201210.xsd | 3094 | 2020-12-10 09:23:53 |
| altm-20201210_lab.xml | 19657 | 2020-12-10 09:23:53 |
| altm-20201210_pre.xml | 12331 | 2020-12-10 09:23:53 |
| d941188d8k.htm | 23881 | 2020-12-10 09:23:53 |
| d941188d8k_htm.xml | 3666 | 2020-12-10 09:23:53 |
| d941188dex991.htm | 10580 | 2020-12-10 09:23:53 |
| FilingSummary.xml | 1735 | 2020-12-10 09:23:53 |
| Financial_Report.xlsx | 5533 | 2020-12-10 09:23:53 |
 g941188page1.jpg | 3081 | 2020-12-10 09:23:53 |
| MetaLinks.json | 20469 | 2020-12-10 09:23:53 |
| R1.htm | 43498 | 2020-12-10 09:23:53 |
| report.css | 2767 | 2020-12-10 09:23:53 |
| Show.js | 1085 | 2020-12-10 09:23:53 |