XML 52 R20.htm IDEA: XBRL DOCUMENT
v2.4.0.6

ORGANIZATION AND BUSINESS OPERATIONS | 6 Months Ended
--- | ---
Jun. 30, 2012
ORGANIZATION AND BUSINESS OPERATIONS. |
Schedule of the operating activities of the Company's principal subsidiaries, the segments in which the Company reports its revenue, and markets served |
Services |  | Segment |  | Markets |  | Tradenames
Wireless |  | U.S. Wireless |  | United States (rural markets) |  | Alltel, Choice
|  | Island Wireless |  | Aruba, Bermuda, Turks and Caicos, U.S. Virgin Islands |  | Mio, CellOne, Islandcom, Choice
|  | International Integrated Telephony |  | Guyana |  | Cellink
Wireline |  | International Integrated Telephony |  | Guyana |  | GT&T, Emagine
|  | U.S. Wireline |  | United States (New England and New York State) |  | Sovernet, ION

X
- Details
Name: | atni_PrincipalSubsidiariesOperatingActivitiesRevenueReportingSegmentsAndMarketsServed
Namespace Prefix: | atni_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the operating activities of the Company's principal subsidiaries, the segments in which the Company reports its revenue, and the markets served. + References No definition available. + Details
Name: | atni_ScheduleOfPrincipalSubsidiariesOperatingActivitiesRevenueReportingSegmentsAndMarketsServedTableTextBlock
Namespace Prefix: | atni_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration