XML 55 R38.htm IDEA: XBRL DOCUMENT
v2.4.0.8

COMMITMENTS AND CONTINGENCIES (Details) (USD $) In Millions, unless otherwise specified | 0 Months Ended
--- | ---
Jul. 31, 2014 | Jan. 02, 2014
Commitments and contingencies |  |
Renewal fee of telecommunications license |  | $ 4.0
Amount of overdue spectrum fees demanded by the government of Aruba be paid by July 31, 2014 | $ 2.0 |

X
- Definition Represents the amount of overdue spectrum fees demanded by the government of Aruba be paid by a specified date. + References No definition available. + Details
Name: | atni_LossContingencyOverdueSpectrumFeesDemandedWithinSpecificDate
Namespace Prefix: | atni_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the amount of renewal fee of telecommunications license. + References No definition available. + Details
Name: | atni_LossContingencyRenewalFeeOfTelecommunicationsLicense
Namespace Prefix: | atni_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration