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CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands | Total ATNI Stockholders' Equity | Common Stock | Treasury Stock, Common, at cost | Additional Paid In Capital | Retained Earnings | Accumulated Other Comprehensive Income/(Loss) | Non-Controlling Interests | Total
--- | --- | --- | --- | --- | --- | --- | --- | ---
Equity, beginning of period at Dec. 31, 2014 | $ 677,222 | $ 166 | $ (15,549) | $ 145,563 | $ 549,963 | $ (2,921) | $ 60,960 | $ 738,182
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |
Issuance of 93,864 , 100,005 and 95,095 restricted shares of common stock for the years ended December 31, 2015, 2016 and 2017, respectively | 1 | 1 |  |  |  |  |  | 1
Issuance of 87,378 ,43,053 and 35,081 shares of common stock upon exercise of stock options for the years ended December 31, 2015, 2016 and 2017, respectively | 2,809 | 1 |  | 2,808 |  |  |  | 2,809
Purchase of 37,567, 70,686, and 234,746 shares of common stock | (2,705) |  | (2,705) |  |  |  |  | (2,705)
Stock-based compensation | 4,974 |  |  | 4,974 |  |  |  | 4,974
Dividends declared on common stock | (19,582) |  |  |  | (19,582) |  | (16,715) | (36,297)
Excess tax benefits from share-based compensation | 1,423 |  |  | 1,423 |  |  |  | 1,423
Investments made by minority shareholders |  |  |  |  |  |  | 951 | 951
Deconsolidation of a subsidiary |  |  |  |  |  |  | 20,013 | 20,013
Comprehensive income: |  |  |  |  |  |  |  |
Net income | 16,940 |  |  |  | 16,940 |  | 16,216 | 33,156
Other comprehensive income (loss), net of tax expense (benefit) of $717, $677 and $679 for the years ended 2015, 2016 and 2017, respectively | (783) |  |  |  |  | (783) |  | (783)
Comprehensive income | 16,157 |  |  |  |  |  | 16,216 | 32,373
Equity, end of period at Dec. 31, 2015 | 680,299 | 168 | (18,254) | 154,768 | 547,321 | (3,704) | 81,425 | 761,724
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |
Issuance of 93,864 , 100,005 and 95,095 restricted shares of common stock for the years ended December 31, 2015, 2016 and 2017, respectively | (1) |  |  | (1) |  |  |  | (1)
Issuance of 87,378 ,43,053 and 35,081 shares of common stock upon exercise of stock options for the years ended December 31, 2015, 2016 and 2017, respectively | 1,409 | 1 |  | 1,408 |  |  |  | 1,409
Purchase of 37,567, 70,686, and 234,746 shares of common stock | (4,873) |  | (4,873) |  |  |  |  | (4,873)
Stock-based compensation | 6,440 |  |  | 6,440 |  |  |  | 6,440
Dividends declared on common stock | (21,313) |  |  |  | (21,313) |  | (8,848) | (30,161)
Excess tax benefits from share-based compensation | 592 |  |  | 592 |  |  |  | 592
Non-controlling interest in equity acquired | (4,106) |  |  | (4,106) |  |  | 29,998 | 25,892
Investments made by minority shareholders |  |  |  |  |  |  | 22,409 | 22,409
Deconsolidation of a subsidiary |  |  |  |  |  |  | (310) | (310)
Repurchase of non-controlling interests | 1,075 |  |  | 1,075 |  |  | (4,673) | (3,598)
Comprehensive income: |  |  |  |  |  |  |  |
Net income | 12,101 |  |  |  | 12,101 |  | 12,113 | 24,214
Other comprehensive income (loss), net of tax expense (benefit) of $717, $677 and $679 for the years ended 2015, 2016 and 2017, respectively | 5,432 |  |  |  |  | 5,432 |  | 5,432
Comprehensive income | 17,533 |  |  |  |  |  | 12,113 | 29,646
Equity, end of period at Dec. 31, 2016 | 677,055 | 169 | (23,127) | 160,176 | 538,109 | 1,728 | 132,114 | 809,169
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |
Issuance of 93,864 , 100,005 and 95,095 restricted shares of common stock for the years ended December 31, 2015, 2016 and 2017, respectively | 1 | 1 |  |  |  |  |  | 1
Issuance of 87,378 ,43,053 and 35,081 shares of common stock upon exercise of stock options for the years ended December 31, 2015, 2016 and 2017, respectively | 1,156 |  |  | 1,156 |  |  |  | 1,156
Purchase of 37,567, 70,686, and 234,746 shares of common stock | (12,983) |  | (12,983) |  |  |  |  | (12,983)
Stock-based compensation | 6,970 |  |  | 6,970 |  |  |  | 6,970
Dividends declared on common stock | (16,465) |  |  |  | (16,465) |  | (7,318) | (23,783)
Investments made by minority shareholders |  |  |  |  |  |  | 123 | 123
Deconsolidation of a subsidiary |  |  |  |  |  |  | 529 | 529
Repurchase of non-controlling interests | (670) |  |  | (670) |  |  | (1,356) | (2,026)
Cumulative-effect adjustment due to adoption of new accounting pronouncement | 155 |  |  | 341 | (186) |  |  | 155
Comprehensive income: |  |  |  |  |  |  |  |
Net income | 31,490 |  |  |  | 31,490 |  | 17,404 | 48,894
Other comprehensive income (loss), net of tax expense (benefit) of $717, $677 and $679 for the years ended 2015, 2016 and 2017, respectively | 2,018 |  |  |  |  | 2,018 |  | 2,018
Comprehensive income | 33,508 |  |  |  |  |  | 17,404 | 50,912
Equity, end of period at Dec. 31, 2017 | $ 688,727 | $ 170 | $ (36,110) | $ 167,973 | $ 552,948 | $ 3,746 | $ 141,496 | $ 830,223

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