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ACQUISITIONS AND DISPOSITIONS - Pro Forma Results (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | ---
Jul. 01, 2016 | May 03, 2016 | Jun. 30, 2016 | Jun. 30, 2016
Pro Forma |  |  |  |
Revenue |  |  | $ 132,444 | $ 268,301
Net income (loss) attributable to ATN International, Inc. Stockholders |  |  | $ (463) | $ 5,596
Earnings per share: Basic (in dollars per share) |  |  | $ (0.03) | $ 0.35
Earnings per share: Diluted (in dollars per share) |  |  | $ (0.03) | $ 0.34
As reported |  |  |  |
Pro Forma |  |  |  |
Revenue |  |  | $ 99,991 | $ 189,676
Net income (loss) attributable to ATN International, Inc. Stockholders |  |  | $ (3,086) | $ 3,034
Earnings per share: Basic (in dollars per share) |  |  | $ (0.19) | $ 0.19
Earnings per share: Diluted (in dollars per share) |  |  | $ (0.19) | $ 0.19
One Communications (formerly KeyTech) |  |  |  |
Acquisition |  |  |  |
Retirement of debt |  | $ 24,700 |  |
Viya (formerly Innovative) |  |  |  |
Acquisition |  |  |  |
Retirement of debt | $ 185,800 |  |  |
Viya (formerly Innovative) | Term loans |  |  |  |
Acquisition |  |  |  |
Debt Instrument, Face Amount | $ 60,000 |  |  |
One Communications and Viya |  |  |  |
Acquisition |  |  |  |
Impairment charges |  |  | $ 1,100 | $ 5,400

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