Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-271231-index-headers.html | 2020-10-16 17:19:31 | |
| 0001193125-20-271231-index.html | 2020-10-16 17:19:31 | |
| 0001193125-20-271231.txt | 2020-10-16 17:19:31 | |
 0001193125-20-271231-xbrl.zip | 49616 | 2020-10-16 17:19:31 |
| atec-20201013.xsd | 3073 | 2020-10-16 17:19:31 |
| atec-20201013_lab.xml | 17374 | 2020-10-16 17:19:31 |
| atec-20201013_pre.xml | 10955 | 2020-10-16 17:19:31 |
| d41892d8k.htm | 31025 | 2020-10-16 17:19:31 |
| d41892d8k_htm.xml | 3234 | 2020-10-16 17:19:31 |
| d41892dex11.htm | 163358 | 2020-10-16 17:19:31 |
| d41892dex51.htm | 8170 | 2020-10-16 17:19:31 |
| d41892dex991.htm | 7834 | 2020-10-16 17:19:31 |
| d41892dex992.htm | 6060 | 2020-10-16 17:19:31 |
| FilingSummary.xml | 1824 | 2020-10-16 17:19:31 |
| Financial_Report.xlsx | 5465 | 2020-10-16 17:19:31 |
 g41892img1.jpg | 8145 | 2020-10-16 17:19:31 |
| MetaLinks.json | 18262 | 2020-10-16 17:19:31 |
| R1.htm | 38627 | 2020-10-16 17:19:31 |
| report.css | 2767 | 2020-10-16 17:19:31 |
| Show.js | 1085 | 2020-10-16 17:19:31 |