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

ORGANIZATION AND BUSINESS OPERATIONS (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2013
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 | The following chart summarizes the operating activities of the Company’s principal subsidiaries, the segments in which the Company reports its revenue and the markets it served as of March 31, 2013:
Services |  | Segment |  | Markets |  | Tradenames
Wireless |  | U.S. Wireless |  | United States (rural markets) |  | Alltel, Commnet, 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_OrganizationAndBusinessOperationsDisclosureAbstract
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