Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000731802-26-000089-index-headers.html | 2026-05-06 17:12:14 | |
| 0000731802-26-000089-index.html | 2026-05-06 17:12:14 | |
| 0000731802-26-000089.txt | 2026-05-06 17:12:14 | |
 0000731802-26-000089-xbrl.zip | 228745 | 2026-05-06 17:12:14 |
| ato-20260331.htm | 1690386 | 2026-05-06 17:12:14 |
| ato-20260331.xsd | 52093 | 2026-05-06 17:12:14 |
| ato-20260331_cal.xml | 66602 | 2026-05-06 17:12:14 |
| ato-20260331_def.xml | 252160 | 2026-05-06 17:12:14 |
| ato-20260331_htm.xml | 1844814 | 2026-05-06 17:12:14 |
| ato-20260331_lab.xml | 634394 | 2026-05-06 17:12:14 |
| ato-20260331_pre.xml | 443914 | 2026-05-06 17:12:14 |
| ato20260331ex-101.htm | 14528 | 2026-05-06 17:12:14 |
| ato20260331ex-15.htm | 3269 | 2026-05-06 17:12:14 |
| ato20260331ex-31.htm | 18543 | 2026-05-06 17:12:14 |
| ato20260331ex-32.htm | 11161 | 2026-05-06 17:12:14 |
| FilingSummary.xml | 37358 | 2026-05-06 17:12:14 |
| MetaLinks.json | 1011520 | 2026-05-06 17:12:14 |
| R1.htm | 53091 | 2026-05-06 17:12:14 |
| R10.htm | 138202 | 2026-05-06 17:12:14 |
| R11.htm | 41757 | 2026-05-06 17:12:14 |
| R12.htm | 85293 | 2026-05-06 17:12:14 |
| R13.htm | 49236 | 2026-05-06 17:12:14 |
| R14.htm | 152499 | 2026-05-06 17:12:14 |
| R15.htm | 35719 | 2026-05-06 17:12:14 |
| R16.htm | 48902 | 2026-05-06 17:12:14 |
| R17.htm | 10913 | 2026-05-06 17:12:14 |
| R18.htm | 10919 | 2026-05-06 17:12:14 |
| R19.htm | 63827 | 2026-05-06 17:12:14 |
| R2.htm | 109841 | 2026-05-06 17:12:14 |
| R20.htm | 79689 | 2026-05-06 17:12:14 |
| R21.htm | 7124 | 2026-05-06 17:12:14 |
| R22.htm | 8465 | 2026-05-06 17:12:14 |
| R23.htm | 17925 | 2026-05-06 17:12:14 |
| R24.htm | 58915 | 2026-05-06 17:12:14 |
| R25.htm | 129929 | 2026-05-06 17:12:14 |
| R26.htm | 40205 | 2026-05-06 17:12:14 |
| R27.htm | 81854 | 2026-05-06 17:12:14 |
| R28.htm | 38269 | 2026-05-06 17:12:14 |
| R29.htm | 150491 | 2026-05-06 17:12:14 |
| R3.htm | 12064 | 2026-05-06 17:12:14 |
| R30.htm | 33332 | 2026-05-06 17:12:14 |
| R31.htm | 45846 | 2026-05-06 17:12:14 |
| R32.htm | 52225 | 2026-05-06 17:12:14 |
| R33.htm | 72199 | 2026-05-06 17:12:14 |
| R34.htm | 7320 | 2026-05-06 17:12:14 |
| R35.htm | 37790 | 2026-05-06 17:12:14 |
| R36.htm | 6478 | 2026-05-06 17:12:14 |
| R37.htm | 77164 | 2026-05-06 17:12:14 |
| R38.htm | 25350 | 2026-05-06 17:12:14 |
| R39.htm | 60938 | 2026-05-06 17:12:14 |
| R4.htm | 114739 | 2026-05-06 17:12:14 |
| R40.htm | 62495 | 2026-05-06 17:12:14 |
| R41.htm | 10253 | 2026-05-06 17:12:14 |
| R42.htm | 13386 | 2026-05-06 17:12:14 |
| R43.htm | 77508 | 2026-05-06 17:12:14 |
| R44.htm | 87507 | 2026-05-06 17:12:14 |
| R45.htm | 68221 | 2026-05-06 17:12:14 |
| R46.htm | 26253 | 2026-05-06 17:12:14 |
| R47.htm | 17206 | 2026-05-06 17:12:14 |
| R48.htm | 35505 | 2026-05-06 17:12:14 |
| R49.htm | 33053 | 2026-05-06 17:12:14 |
| R5.htm | 7703 | 2026-05-06 17:12:14 |
| R50.htm | 21079 | 2026-05-06 17:12:14 |
| R51.htm | 33585 | 2026-05-06 17:12:14 |
| R52.htm | 33152 | 2026-05-06 17:12:14 |
| R53.htm | 27231 | 2026-05-06 17:12:14 |
| R54.htm | 30878 | 2026-05-06 17:12:14 |
| R55.htm | 28033 | 2026-05-06 17:12:14 |
| R56.htm | 23481 | 2026-05-06 17:12:14 |
| R57.htm | 10897 | 2026-05-06 17:12:14 |
| R58.htm | 7707 | 2026-05-06 17:12:14 |
| R59.htm | 79961 | 2026-05-06 17:12:14 |
| R6.htm | 68406 | 2026-05-06 17:12:14 |
| R60.htm | 7774 | 2026-05-06 17:12:14 |
| R61.htm | 9685 | 2026-05-06 17:12:14 |
| R7.htm | 7014 | 2026-05-06 17:12:14 |
| R8.htm | 9219 | 2026-05-06 17:12:14 |
| R9.htm | 31414 | 2026-05-06 17:12:14 |
| report.css | 2767 | 2026-05-06 17:12:14 |
| Show.js | 1085 | 2026-05-06 17:12:14 |