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Condensed Consolidated Statements of Changes in Shareholders' Deficit - USD ($) $ in Thousands | Preferred Stock | Common Stock | Treasury Stock | Additional Paid-in Capital | Retained (Deficit) Earnings | Accumulated Other Comprehensive (Loss) Income | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2015 |  | $ 830 | $ (28,414) | $ 988,686 | $ (1,634,591) | $ (4,554) | $ (678,043)
Balance (in shares) at Dec. 31, 2015 | 8,624 | 80,889,275 |  |  |  |  |
Increase (Decrease) in Shareholders' Deficit |  |  |  |  |  |  |
Share-based compensation arrangements, net of tax benefits of $4,375 for the period ended June 30, 2016 |  | $ 7 |  | 12,097 |  |  | 12,104
Share-based compensation arrangements (in shares) |  | 730,483 |  |  |  |  |
Foreign currency translation adjustment |  |  |  |  |  | 1,272 | 1,272
Conversion of preferred stock |  | $ 12 |  | (12) |  |  |
Conversion of preferred stock (in shares) | (1,177) | 1,177,000 |  |  |  |  |
Net income |  |  |  |  | 57,743 |  | 57,743
Balance at Jun. 30, 2016 |  | $ 849 | (28,414) | 1,000,771 | (1,576,848) | (3,282) | (606,924)
Balance (in shares) at Jun. 30, 2016 | 7,447 | 82,796,758 |  |  |  |  |
Balance at Dec. 31, 2016 |  | $ 932 | (28,414) | 1,014,119 | (1,525,281) | (4,676) | (543,320)
Balance (in shares) at Dec. 31, 2016 |  | 91,122,308 |  |  |  |  |
Increase (Decrease) in Shareholders' Deficit |  |  |  |  |  |  |
Repurchase of Preferred Stock |  | $ (4) |  | (5,790) |  |  | (5,794)
Repurchase of Preferred Stock (in shares) |  | (416,886) |  |  |  |  |
Share-based compensation arrangements, net of tax benefits of $4,375 for the period ended June 30, 2016 |  | $ 6 |  | 7,746 |  |  | 7,752
Share-based compensation arrangements (in shares) |  | 634,245 |  |  |  |  |
Foreign currency translation adjustment |  |  |  |  |  | 1,654 | 1,654
Net income |  |  |  |  | 22,183 |  | 22,183
Balance at Jun. 30, 2017 |  | $ 934 | $ (28,414) | $ 1,016,075 | $ (1,503,098) | $ (3,022) | $ (517,525)
Balance (in shares) at Jun. 30, 2017 |  | 91,339,667 |  |  |  |  |

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