XML 116 R99.htm IDEA: XBRL DOCUMENT
v3.10.0.1

RELATED PARTY TRANSACTIONS (Details) | 1 Months Ended
--- | ---
Oct. 31, 2014 USD ($) item
Tower Lease |
Related Party Transaction |
Annual lease payments | $ | $ 117,000
Initial Term | 5 years
Number of additional renewal period | item | 2
Renewal period | 5 years
Percentage of increase in rent | 5.00%
Cornelius B. Prior Jr | Tropical Tower |
Related Party Transaction |
Ownership interest | 90.00%

X
- Definition Represents information pertaining to number of additional renewal period. + References No definition available. + Details
Name: | atni_NumberOfAdditionalRenewalPeriod
Namespace Prefix: | atni_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents information pertaining to increase in percentage of rent every year. + References No definition available. + Details
Name: | atni_OperatingLeaseRentPercentageIncrease
Namespace Prefix: | atni_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of related party annual lease payments. + References No definition available. + Details
Name: | atni_RelatedPartyAnnualLeasePayments
Namespace Prefix: | atni_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseRenewalTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseTermOfContract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=atni_TowerLeaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_BoardOfDirectorsChairmanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=atni_TropicalTowerLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |