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| 0000731802-16-000037-index.html | 2016-02-02 17:18:12 | |
| 0000731802-16-000037.txt | 2016-02-02 17:18:12 | |
 0000731802-16-000037-xbrl.zip | 223658 | 2016-02-02 17:18:12 |
| ato-20151231.xml | 2872869 | 2016-02-02 17:18:12 |
| ato-20151231.xsd | 48948 | 2016-02-02 17:18:12 |
| ato-20151231_cal.xml | 87135 | 2016-02-02 17:18:12 |
| ato-20151231_def.xml | 214054 | 2016-02-02 17:18:12 |
| ato-20151231_lab.xml | 611444 | 2016-02-02 17:18:12 |
| ato-20151231_pre.xml | 336770 | 2016-02-02 17:18:12 |
| ato2015123110-q.htm | 1662653 | 2016-02-02 17:18:12 |
| ato20151231ex-12.htm | 24671 | 2016-02-02 17:18:12 |
| ato20151231ex-15.htm | 3430 | 2016-02-02 17:18:12 |
| ato20151231ex-31.htm | 26234 | 2016-02-02 17:18:12 |
| ato20151231ex-32.htm | 13836 | 2016-02-02 17:18:12 |
| FilingSummary.xml | 25333 | 2016-02-02 17:18:12 |
| Financial_Report.xlsx | 71371 | 2016-02-02 17:18:12 |
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| report.css | 2767 | 2016-02-02 17:18:12 |
| Show.js | 1410 | 2016-02-02 17:18:12 |