Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000731802-15-000030-index-headers.html | 2015-11-06 15:32:20 | |
| 0000731802-15-000030-index.html | 2015-11-06 15:32:20 | |
| 0000731802-15-000030.txt | 2015-11-06 15:32:20 | |
 0000731802-15-000030-xbrl.zip | 500307 | 2015-11-06 15:32:20 |
| ato-20150930.xml | 6072974 | 2015-11-06 15:32:20 |
| ato-20150930.xsd | 105770 | 2015-11-06 15:32:20 |
| ato-20150930_cal.xml | 179761 | 2015-11-06 15:32:20 |
| ato-20150930_def.xml | 441230 | 2015-11-06 15:32:20 |
| ato-20150930_lab.xml | 1439541 | 2015-11-06 15:32:20 |
| ato-20150930_pre.xml | 791420 | 2015-11-06 15:32:20 |
| ato2015093010-k.htm | 3951519 | 2015-11-06 15:32:20 |
| ato20150930ex-1013b.htm | 26985 | 2015-11-06 15:32:20 |
| ato20150930ex-1013c.htm | 36938 | 2015-11-06 15:32:20 |
| ato20150930ex-108a.htm | 216034 | 2015-11-06 15:32:20 |
| ato20150930ex-12.htm | 52070 | 2015-11-06 15:32:20 |
| ato20150930ex-21.htm | 35445 | 2015-11-06 15:32:20 |
| ato20150930ex-231.htm | 3162 | 2015-11-06 15:32:20 |
| ato20150930ex-31.htm | 22290 | 2015-11-06 15:32:20 |
| ato20150930ex-32.htm | 10817 | 2015-11-06 15:32:20 |
 ato2015093_chart-51733.jpg | 70792 | 2015-11-06 15:32:20 |
| FilingSummary.xml | 45233 | 2015-11-06 15:32:20 |
| Financial_Report.xlsx | 162668 | 2015-11-06 15:32:20 |
| R1.htm | 28567 | 2015-11-06 15:32:20 |
| R10.htm | 96571 | 2015-11-06 15:32:20 |
| R11.htm | 15866 | 2015-11-06 15:32:20 |
| R12.htm | 82924 | 2015-11-06 15:32:20 |
| R13.htm | 501334 | 2015-11-06 15:32:20 |
| R14.htm | 90944 | 2015-11-06 15:32:20 |
| R15.htm | 52616 | 2015-11-06 15:32:20 |
| R16.htm | 504100 | 2015-11-06 15:32:20 |
| R17.htm | 52017 | 2015-11-06 15:32:20 |
| R18.htm | 133516 | 2015-11-06 15:32:20 |
| R19.htm | 16243 | 2015-11-06 15:32:20 |
| R2.htm | 81121 | 2015-11-06 15:32:20 |
| R20.htm | 20767 | 2015-11-06 15:32:20 |
| R21.htm | 97352 | 2015-11-06 15:32:20 |
| R22.htm | 327657 | 2015-11-06 15:32:20 |
| R23.htm | 90698 | 2015-11-06 15:32:20 |
| R24.htm | 203738 | 2015-11-06 15:32:20 |
| R25.htm | 7592 | 2015-11-06 15:32:20 |
| R26.htm | 22025 | 2015-11-06 15:32:20 |
| R27.htm | 87619 | 2015-11-06 15:32:20 |
| R28.htm | 39705 | 2015-11-06 15:32:20 |
| R29.htm | 116814 | 2015-11-06 15:32:20 |
| R3.htm | 12137 | 2015-11-06 15:32:20 |
| R30.htm | 12225 | 2015-11-06 15:32:20 |
| R31.htm | 33562 | 2015-11-06 15:32:20 |
| R32.htm | 494852 | 2015-11-06 15:32:20 |
| R33.htm | 85185 | 2015-11-06 15:32:20 |
| R34.htm | 39480 | 2015-11-06 15:32:20 |
| R35.htm | 482992 | 2015-11-06 15:32:20 |
| R36.htm | 37465 | 2015-11-06 15:32:20 |
| R37.htm | 145170 | 2015-11-06 15:32:20 |
| R38.htm | 12552 | 2015-11-06 15:32:20 |
| R39.htm | 10903 | 2015-11-06 15:32:20 |
| R4.htm | 136746 | 2015-11-06 15:32:20 |
| R40.htm | 97634 | 2015-11-06 15:32:20 |
| R41.htm | 311898 | 2015-11-06 15:32:20 |
| R42.htm | 91878 | 2015-11-06 15:32:20 |
| R43.htm | 199401 | 2015-11-06 15:32:20 |
| R44.htm | 20473 | 2015-11-06 15:32:20 |
| R45.htm | 86023 | 2015-11-06 15:32:20 |
| R46.htm | 8600 | 2015-11-06 15:32:20 |
| R47.htm | 64316 | 2015-11-06 15:32:20 |
| R48.htm | 484952 | 2015-11-06 15:32:20 |
| R49.htm | 110951 | 2015-11-06 15:32:20 |
| R5.htm | 9993 | 2015-11-06 15:32:20 |
| R50.htm | 159487 | 2015-11-06 15:32:20 |
| R51.htm | 348188 | 2015-11-06 15:32:20 |
| R52.htm | 117259 | 2015-11-06 15:32:20 |
| R53.htm | 28441 | 2015-11-06 15:32:20 |
| R54.htm | 36837 | 2015-11-06 15:32:20 |
| R55.htm | 29210 | 2015-11-06 15:32:20 |
| R56.htm | 50441 | 2015-11-06 15:32:20 |
| R57.htm | 181730 | 2015-11-06 15:32:20 |
| R58.htm | 30903 | 2015-11-06 15:32:20 |
| R59.htm | 38118 | 2015-11-06 15:32:20 |
| R6.htm | 27445 | 2015-11-06 15:32:20 |
| R60.htm | 117028 | 2015-11-06 15:32:20 |
| R61.htm | 11779 | 2015-11-06 15:32:20 |
| R62.htm | 19378 | 2015-11-06 15:32:20 |
| R63.htm | 40363 | 2015-11-06 15:32:20 |
| R64.htm | 81959 | 2015-11-06 15:32:20 |
| R65.htm | 39826 | 2015-11-06 15:32:20 |
| R66.htm | 16450 | 2015-11-06 15:32:20 |
| R67.htm | 32469 | 2015-11-06 15:32:20 |
| R68.htm | 41083 | 2015-11-06 15:32:20 |
| R69.htm | 30899 | 2015-11-06 15:32:20 |
| R7.htm | 13825 | 2015-11-06 15:32:20 |
| R70.htm | 31712 | 2015-11-06 15:32:20 |
| R71.htm | 110427 | 2015-11-06 15:32:20 |
| R72.htm | 28199 | 2015-11-06 15:32:20 |
| R73.htm | 42406 | 2015-11-06 15:32:20 |
| R74.htm | 85931 | 2015-11-06 15:32:20 |
| R75.htm | 15216 | 2015-11-06 15:32:20 |
| R8.htm | 70221 | 2015-11-06 15:32:20 |
| R9.htm | 4714 | 2015-11-06 15:32:20 |
| report.css | 2767 | 2015-11-06 15:32:20 |
| Show.js | 1410 | 2015-11-06 15:32:20 |