Represents addition of debt in a business combination.

No definition available.

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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- 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.

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- Definition

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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-Name Accounting Standards Codification
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- Definition

The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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No definition available.

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- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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- Definition

The amount of property, plant, and equipment recognized as of the acquisition date.

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- Definition

Gross amount of debt extinguished.

+ References

No definition available.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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ACQUISITIONS - Pro Forma Results (Details) - USD ($) $ / shares in Units, $ in Thousands					3 Months Ended	9 Months Ended
	Jul. 01, 2016	May 03, 2016	Apr. 07, 2016	Apr. 07, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Business Acquisition [Line Items]
Consideration Transferred		$ 41,563
Goodwill						$ 62,042		$ 45,077
Pro forma
Business Acquisition [Line Items]
Impairment charges						5,400	$ 168,700
Business Acquisition, Pro Forma Information [Abstract]
Revenue					$ 146,074	407,096	415,501
Net Income attributable to ATN International, Inc. Stockholders					$ 6,566	$ 12,767	$ (101,631)
Earnings per share: Basic (in dollars per share)					$ 0.41	$ 0.79	$ (6.35)
Earnings per share: Diluted (in dollars per share)					$ 0.41	$ 0.79	$ (6.30)
As reported
Business Acquisition, Pro Forma Information [Abstract]
Revenue					$ 96,782	$ 328,471	$ 272,453
Net Income attributable to ATN International, Inc. Stockholders					$ 6,576	$ 10,206	$ 12,757
Earnings per share: Basic (in dollars per share)					$ 0.41	$ 0.63	$ 0.79
Earnings per share: Diluted (in dollars per share)					$ 0.41	$ 0.63	$ 0.79
Keytech
Business Acquisition [Line Items]
Retirement of debt						$ 24,700
Consideration Transferred		34,518
Consideration attributable to Fixed Assets		$ 100,892
Keytech \| Pro forma
Business Acquisition [Line Items]
Impairment charges						4,300	$ 85,600
Innovative
Business Acquisition [Line Items]
Retirement of debt						185,500
Addition of debt						60,000
Consideration Transferred	$ 112,301
Consideration attributable to Fixed Assets	108,284
Goodwill	$ 20,586
Innovative \| Pro forma
Business Acquisition [Line Items]
Impairment charges						$ 1,100	$ 83,100
Vibrant Energy
Business Acquisition [Line Items]
Consideration Transferred				$ 6,193
Consideration attributable to Fixed Assets			$ 7,321	7,321
Goodwill			3,279	$ 3,279
Consideration paid			$ 3,500