Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001558370-18-001408-index-headers.html | 2018-03-01 17:17:56 | |
| 0001558370-18-001408-index.html | 2018-03-01 17:17:56 | |
| 0001558370-18-001408.txt | 2018-03-01 17:17:56 | |
 0001558370-18-001408-xbrl.zip | 424838 | 2018-03-01 17:17:56 |
| atni-20171231.xml | 6730359 | 2018-03-01 17:17:56 |
| atni-20171231.xsd | 111704 | 2018-03-01 17:17:56 |
| atni-20171231ex10256097c.htm | 23417 | 2018-03-01 17:17:56 |
| atni-20171231ex21df27a28.htm | 65855 | 2018-03-01 17:17:56 |
| atni-20171231ex231e30912.htm | 2665 | 2018-03-01 17:17:56 |
| atni-20171231ex311ed63f9.htm | 22726 | 2018-03-01 17:17:56 |
| atni-20171231ex312fb48a3.htm | 23208 | 2018-03-01 17:17:56 |
| atni-20171231ex321cd10bc.htm | 10702 | 2018-03-01 17:17:56 |
| atni-20171231ex322d5e876.htm | 10515 | 2018-03-01 17:17:56 |
| atni-20171231ex34edc8a1d.htm | 109143 | 2018-03-01 17:17:56 |
| atni-20171231x10k.htm | 6468008 | 2018-03-01 17:17:56 |
| atni-20171231_cal.xml | 160160 | 2018-03-01 17:17:56 |
| atni-20171231_def.xml | 577840 | 2018-03-01 17:17:56 |
| atni-20171231_lab.xml | 1187411 | 2018-03-01 17:17:56 |
| atni-20171231_pre.xml | 919250 | 2018-03-01 17:17:56 |
 atni20171231ex10256097c001.jpg | 4526 | 2018-03-01 17:17:56 |
 atni20171231x10k001.jpg | 38551 | 2018-03-01 17:17:56 |
| FilingSummary.xml | 57471 | 2018-03-01 17:17:56 |
| Financial_Report.xlsx | 164603 | 2018-03-01 17:17:56 |
| R1.htm | 28231 | 2018-03-01 17:17:56 |
| R10.htm | 138149 | 2018-03-01 17:17:56 |
| R11.htm | 6543 | 2018-03-01 17:17:56 |
| R12.htm | 35063 | 2018-03-01 17:17:56 |
| R13.htm | 358378 | 2018-03-01 17:17:56 |
| R14.htm | 8446 | 2018-03-01 17:17:56 |
| R15.htm | 180832 | 2018-03-01 17:17:56 |
| R16.htm | 6064 | 2018-03-01 17:17:56 |
| R17.htm | 29847 | 2018-03-01 17:17:56 |
| R18.htm | 80835 | 2018-03-01 17:17:56 |
| R19.htm | 184587 | 2018-03-01 17:17:56 |
| R2.htm | 102063 | 2018-03-01 17:17:56 |
| R20.htm | 24801 | 2018-03-01 17:17:56 |
| R21.htm | 8158 | 2018-03-01 17:17:56 |
| R22.htm | 243560 | 2018-03-01 17:17:56 |
| R23.htm | 298507 | 2018-03-01 17:17:56 |
| R24.htm | 509722 | 2018-03-01 17:17:56 |
| R25.htm | 31487 | 2018-03-01 17:17:56 |
| R26.htm | 6123 | 2018-03-01 17:17:56 |
| R27.htm | 459869 | 2018-03-01 17:17:56 |
| R28.htm | 186046 | 2018-03-01 17:17:56 |
| R29.htm | 5321 | 2018-03-01 17:17:56 |
| R3.htm | 23535 | 2018-03-01 17:17:56 |
| R30.htm | 167903 | 2018-03-01 17:17:56 |
| R31.htm | 439904 | 2018-03-01 17:17:56 |
| R32.htm | 27907 | 2018-03-01 17:17:56 |
| R33.htm | 277446 | 2018-03-01 17:17:56 |
| R34.htm | 164005 | 2018-03-01 17:17:56 |
| R35.htm | 27498 | 2018-03-01 17:17:56 |
| R36.htm | 79258 | 2018-03-01 17:17:56 |
| R37.htm | 173495 | 2018-03-01 17:17:56 |
| R38.htm | 247628 | 2018-03-01 17:17:56 |
| R39.htm | 287973 | 2018-03-01 17:17:56 |
| R4.htm | 110540 | 2018-03-01 17:17:56 |
| R40.htm | 522862 | 2018-03-01 17:17:56 |
| R41.htm | 19932 | 2018-03-01 17:17:56 |
| R42.htm | 463156 | 2018-03-01 17:17:56 |
| R43.htm | 184600 | 2018-03-01 17:17:56 |
| R44.htm | 15145 | 2018-03-01 17:17:56 |
| R45.htm | 14001 | 2018-03-01 17:17:56 |
| R46.htm | 10423 | 2018-03-01 17:17:56 |
| R47.htm | 13185 | 2018-03-01 17:17:56 |
| R48.htm | 33751 | 2018-03-01 17:17:56 |
| R49.htm | 10136 | 2018-03-01 17:17:56 |
| R5.htm | 4307 | 2018-03-01 17:17:56 |
| R50.htm | 10194 | 2018-03-01 17:17:56 |
| R51.htm | 15688 | 2018-03-01 17:17:56 |
| R52.htm | 53441 | 2018-03-01 17:17:56 |
| R53.htm | 15378 | 2018-03-01 17:17:56 |
| R54.htm | 17556 | 2018-03-01 17:17:56 |
| R55.htm | 30938 | 2018-03-01 17:17:56 |
| R56.htm | 29441 | 2018-03-01 17:17:56 |
| R57.htm | 15113 | 2018-03-01 17:17:56 |
| R58.htm | 110787 | 2018-03-01 17:17:56 |
| R59.htm | 127183 | 2018-03-01 17:17:56 |
| R6.htm | 28054 | 2018-03-01 17:17:56 |
| R60.htm | 12711 | 2018-03-01 17:17:56 |
| R61.htm | 19524 | 2018-03-01 17:17:56 |
| R62.htm | 18808 | 2018-03-01 17:17:56 |
| R63.htm | 73303 | 2018-03-01 17:17:56 |
| R64.htm | 33994 | 2018-03-01 17:17:56 |
| R65.htm | 42417 | 2018-03-01 17:17:56 |
| R66.htm | 10654 | 2018-03-01 17:17:56 |
| R67.htm | 15577 | 2018-03-01 17:17:56 |
| R68.htm | 66580 | 2018-03-01 17:17:56 |
| R69.htm | 20503 | 2018-03-01 17:17:56 |
| R7.htm | 5400 | 2018-03-01 17:17:56 |
| R70.htm | 26107 | 2018-03-01 17:17:56 |
| R71.htm | 26766 | 2018-03-01 17:17:56 |
| R72.htm | 34734 | 2018-03-01 17:17:56 |
| R73.htm | 138629 | 2018-03-01 17:17:56 |
| R74.htm | 16828 | 2018-03-01 17:17:56 |
| R75.htm | 161091 | 2018-03-01 17:17:56 |
| R76.htm | 26578 | 2018-03-01 17:17:56 |
| R77.htm | 12127 | 2018-03-01 17:17:56 |
| R78.htm | 47323 | 2018-03-01 17:17:56 |
| R79.htm | 91356 | 2018-03-01 17:17:56 |
| R8.htm | 73419 | 2018-03-01 17:17:56 |
| R80.htm | 72242 | 2018-03-01 17:17:56 |
| R81.htm | 23549 | 2018-03-01 17:17:56 |
| R82.htm | 53132 | 2018-03-01 17:17:56 |
| R83.htm | 72599 | 2018-03-01 17:17:56 |
| R84.htm | 40058 | 2018-03-01 17:17:56 |
| R85.htm | 26737 | 2018-03-01 17:17:56 |
| R86.htm | 19702 | 2018-03-01 17:17:56 |
| R87.htm | 24632 | 2018-03-01 17:17:56 |
| R88.htm | 24784 | 2018-03-01 17:17:56 |
| R89.htm | 21985 | 2018-03-01 17:17:56 |
| R9.htm | 12991 | 2018-03-01 17:17:56 |
| R90.htm | 16957 | 2018-03-01 17:17:56 |
| R91.htm | 123532 | 2018-03-01 17:17:56 |
| R92.htm | 27015 | 2018-03-01 17:17:56 |
| R93.htm | 64774 | 2018-03-01 17:17:56 |
| R94.htm | 7995 | 2018-03-01 17:17:56 |
| R95.htm | 29148 | 2018-03-01 17:17:56 |
| report.css | 2768 | 2018-03-01 17:17:56 |
| Show.js | 1411 | 2018-03-01 17:17:56 |