Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-21-104000-index-headers.html | 2021-04-01 16:16:24 | |
| 0001193125-21-104000-index.html | 2021-04-01 16:16:24 | |
| 0001193125-21-104000.txt | 2021-04-01 16:16:24 | |
 0001193125-21-104000-xbrl.zip | 191676 | 2021-04-01 16:16:24 |
| ato-20210331.xsd | 3800 | 2021-04-01 16:16:24 |
| ato-20210331_def.xml | 13431 | 2021-04-01 16:16:24 |
| ato-20210331_lab.xml | 21831 | 2021-04-01 16:16:24 |
| ato-20210331_pre.xml | 14204 | 2021-04-01 16:16:24 |
| d143871d8k.htm | 40290 | 2021-04-01 16:16:24 |
| d143871d8k_htm.xml | 4304 | 2021-04-01 16:16:24 |
| d143871dex101.htm | 528836 | 2021-04-01 16:16:24 |
| d143871dex102.htm | 525774 | 2021-04-01 16:16:24 |
| FilingSummary.xml | 1933 | 2021-04-01 16:16:24 |
| Financial_Report.xlsx | 5733 | 2021-04-01 16:16:24 |
| MetaLinks.json | 21566 | 2021-04-01 16:16:24 |
| R1.htm | 41921 | 2021-04-01 16:16:24 |
| report.css | 2767 | 2021-04-01 16:16:24 |
| Show.js | 1085 | 2021-04-01 16:16:24 |