XML 83 R66.htm IDEA: XBRL DOCUMENT
v3.10.0.1

ACQUISITIONS AND DISPOSITIONS - One Communications (Details) - USD ($) $ in Thousands | May 03, 2016 | May 02, 2016
--- | --- | ---
One Communications (formerly KeyTech) | BDC |  |
Acquisitions and Dispositions |  |
Ownership interest held by minority shareholders |  | 43.00%
One Communications (formerly KeyTech) |  |
Acquisitions and Dispositions |  |
Minority ownership contributed in acquisition (as a percent) | 43.00% |
Cash consideration | $ 34,518 |
One Communications (formerly Keytech) and BDC |  |
Acquisitions and Dispositions |  |
Ownership interest acquired (as a percent) | 51.00% |
Cash consideration | $ 41,563 |
One Communications (formerly Keytech) and BDC | BDC |  |
Acquisitions and Dispositions |  |
Ownership interest held by minority shareholders | 15.00% |

X
- Definition Represents the ownership percentage of minority interest contributed as part of the purchase price in a business combination. + References No definition available. + Details
Name: | atni_BusinessCombinationOwnershipPercentageOfMinorityInterestContributedForAcquisition
Namespace Prefix: | atni_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
Name: | us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireBusinessesGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=atni_KeytechMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=atni_KeytechMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=atni_KeytechAndBdcMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |