XML 13 R33.htm IDEA: XBRL DOCUMENT v2.4.0.8

GOVERNMENT GRANTS (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 item
Upstate New York and parts of Pennsylvania and Vermont
GOVERNMENT GRANTS
Capital expenditures	$ 35.7
Federal stimulus grant	27.5
Number of new segments of fiber-optic, middle mile broadband infrastructure built	10
Navajo Nation across Arizona, New Mexico and Utah
GOVERNMENT GRANTS
Capital expenditures	7.6
Federal stimulus grant	5.3
Vermont
GOVERNMENT GRANTS
Capital expenditures	44.8
Federal stimulus grant	31.4
Additional capital expenditures to be incurred	3.0
Expected amount of federal stimulus grants	$ 2.1
Vermont | Minimum
GOVERNMENT GRANTS
Number of community anchor institutions to whom broadband and transport services are provided	340

X

- Definition

The expected future cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

+ References

No definition available.

+ Details

Name:	atni_CapitalExpendituresExpectedToBeIncurred
Namespace Prefix:	atni_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Estimated revenue expected to be earned in future periods from non-repayable sum of money awarded to an entity to carry out a specific purpose as provided in grant agreements.

+ References

No definition available.

+ Details

Name:	atni_ExpectedFutureRevenueFromGrants
Namespace Prefix:	atni_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Represents the number of community anchor institutions to whom broadband and transport services are provided.

+ References

No definition available.

+ Details

Name:	atni_NumberOfCommunityAnchorInstitutionsToWhomBroadbandAndTransportServicesAreProvided
Namespace Prefix:	atni_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the number of new segments of fiber-optic, middle mile broadband infrastructure built.

+ References

No definition available.

+ Details

Name:	atni_NumberOfNewSegmentsOfFiberOpticBroadbandInfrastructure
Namespace Prefix:	atni_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	atni_StimulusGrantsLineItems
Namespace Prefix:	atni_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

+ Details

Name:	us-gaap_PaymentsToAcquireProductiveAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Revenue earned during the period from non-repayable sum of money awarded to an entity to carry out a specific purpose as provided in grant agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(e))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

+ Details

Name:	us-gaap_RevenueFromGrants
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration