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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' DEFICIT - USD ($) shares in Thousands, $ in Thousands | Common Stock | Additional Paid-In Capital | Accumulated Other Comprehensive Income (loss) | Accumulated Deficit | Treasury Stock | Noncontrolling Interest | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2014 | $ 1,164 | $ 1,452,504 | $ (87) | $ (1,673,667) | $ (3,263) | $ 0 | $ (223,349)
Balance (in shares) at Dec. 31, 2014 | 116,445 |  |  |  | (150) |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Exercise of stock options, and issuance of common stock units and stock awards | $ 8 | (488) | 0 | 0 | $ 0 | 0 | (480)
Exercise of stock options, and issuance of common stock units and stock awards (in shares) | 740 |  |  |  | 0 |  |
Issuance of common stock in private placement to a related party | $ 4 | 6,524 | 0 | 0 | $ 0 | 0 | 6,528
Issuance of common stock in private placement to a related party (in shares) | 424 |  |  |  | 0 |  |
Stock-based compensation | $ 0 | 6,873 | 0 | 0 | $ 0 | 0 | 6,873
Repurchase of common stock | $ (27) | (25,609) | 0 | 0 | $ 0 | 0 | (25,636)
Repurchase of common stock (in shares) | (2,676) |  |  |  | 0 |  |
Cash dividends declared, $0.75 per common share | $ 0 | (87,906) | 0 | 0 | $ 0 | 0 | (87,906)
Net income (loss) | 0 | 0 | 0 | (18,760) | 0 | 0 | (18,760)
Other comprehensive income (loss) | 0 | 0 | 85 | 0 | 0 | 0 | 85
Balance at Dec. 31, 2015 | $ 1,149 | 1,351,898 | (2) | (1,692,427) | $ (3,263) | 0 | (342,645)
Balance (in shares) at Dec. 31, 2015 | 114,933 |  |  |  | (150) |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Exercise of stock options, and issuance of common stock units and stock awards | $ 8 | (674) | 0 | 0 | $ 0 | 0 | (666)
Exercise of stock options, and issuance of common stock units and stock awards (in shares) | 853 |  |  |  | 0 |  |
Issuance of common stock in private placement to a related party (in shares) | 0 |  |  |  | 0 |  |
Partial termination of capped call options associated with repurchases of convertible notes due 2023 | $ 0 | 578 | 0 | 0 | $ 0 | 0 | 578
Stock-based compensation | 0 | 8,297 | 0 | 0 | 0 | 0 | 8,297
Repurchase of common stock | $ (72) | (78,022) | 0 | 0 | $ 0 | 0 | (78,094)
Repurchase of common stock (in shares) | (7,201) |  |  |  | 0 |  |
Net income (loss) | $ 0 | 0 | 0 | 59,536 | $ 0 | 0 | 59,536
Other comprehensive income (loss) | 0 | 0 | 3 | 0 | 0 | 0 | 3
Balance at Dec. 31, 2016 | $ 1,085 | 1,282,077 | 1 | (1,632,891) | $ (3,263) | 0 | (352,991)
Balance (in shares) at Dec. 31, 2016 | 108,585 |  |  |  | (150) |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Contributions from noncontrolling interest | $ 0 | 0 | 0 | 0 | $ 0 | 23 | 23
Exercise of stock options, and issuance of common stock units and stock awards | $ 9 | (1,702) | 0 | 0 | $ 0 | 0 | (1,693)
Exercise of stock options, and issuance of common stock units and stock awards (in shares) | 891 |  |  |  | 0 |  |
Stock-based compensation | $ 0 | 9,833 | 0 | 0 | $ 0 | 0 | 9,833
Cash dividend forfeited | 0 | 7 | 0 | 0 | 0 | 0 | 7
Repurchase of common stock | $ (75) | (97,425) | 0 | 0 | $ 0 | 0 | (97,500)
Repurchase of common stock (in shares) | (7,430) |  |  |  | 0 |  |
Equity components of Convertible Senior Notes due 2025, net of issuance costs | $ 0 | 65,361 | 0 | 0 | $ 0 | 0 | 65,361
Net income (loss) | 0 | 0 | 0 | 134,143 | 0 | 129 | 134,272
Other comprehensive income (loss) | 0 | 0 | (19) | 0 | 0 | 0 | (19)
Balance at Dec. 31, 2017 | $ 1,019 | $ 1,258,151 | $ (18) | $ (1,498,748) | $ (3,263) | $ 152 | $ (242,707)
Balance (in shares) at Dec. 31, 2017 | 102,046 |  |  |  | (150) |  |

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