XML 16 R5.htm IDEA: XBRL DOCUMENT
v3.7.0.1

CONSOLIDATED INCOME STATEMENTS (Parentheticals) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
CONSOLIDATED INCOME STATEMENTS |  |  |  |
Noncontrolling interest income tax expense (benefit) | $ 0.1 | $ 0.5 | $ 0.4 | $ 0.4

X
- Definition Amount of current income tax expense (benefit) reported by noncontrolling interests. + References No definition available. + Details
Name: | atni_NoncontrollingInterestIncomeTaxExpenseBenefit
Namespace Prefix: | atni_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_IncomeStatementAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration