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Consolidated Statement of Changes in Stockholders' Equity - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Retained Earnings/(Accumulated Deficit) | Accumulated Other Comprehensive Loss, Net | Noncontrolling Interest [Member] | Other Member [Member]
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2012 | $ 467,127 | $ 869 | $ 655,694 | $ (351,810) | $ (962) | $ 163,336 |
Balance, shares at Dec. 31, 2012 |  | 86,871,977 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income (loss) | (108,554) | $ 0 | 0 | (80,264) | 0 | (28,290) |
Capital investment attributable to noncontrolling interest | 0 |  |  |  |  | 0 | $ 0
Unrealized loss on investment available for sale | (555) | 0 | 0 | 0 | (555) | 0 |
Stock Issued During Period, Value, New Issues | $ 216,467 | $ 190 | 216,277 | 0 | 0 | 0 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period | 1,848,222 | 1,848,222 |  |  |  |  |
Stock options exercised, value | $ 13,752 | $ 18 | 13,734 | 0 | 0 | 0 |
Stock options exercised, shares | 18,975,000 |  |  |  |  |  |
Award of restricted stock units | $ (2,095) | $ 5 | (2,100) | 0 | 0 | 0 |
Award of restricted stock units, shares |  | 459,803 |  |  |  |  |
Share-based compensation costs | 18,891 | $ 0 | 18,891 | 0 | 0 | 0 |
Stockholders' Equity, Other | 45,404 | 0 | 0 | 0 | 0 | 45,404 |
Balance at Dec. 31, 2013 | 650,437 | $ 1,082 | 902,496 | (432,074) | (1,517) | 180,450 |
Balance, shares at Dec. 31, 2013 |  | 108,155,002.000 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income (loss) | (41,638) | $ 0 | 0 | (53,041) | 0 | 11,403 |
Capital investment attributable to noncontrolling interest | (30) | 0 | 0 | 0 | 0 | 0 | (30)
Unrealized loss on investment available for sale | $ 824 | $ 0 | (640) | 0 | 1,464 | 0 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period | 562,234 | 562,234 |  |  |  |  |
Stock options exercised, value | $ 4,152 | $ 6 | 4,146 | 0 | 0 | 0 |
Stock options exercised, shares | 18,975,000 |  |  |  |  |  |
Award of restricted stock units | $ (2,361) | $ 5 | (2,366) | 0 | 0 | 0 |
Award of restricted stock units, shares |  | 559,824 |  |  |  |  |
Share-based compensation costs | 18,476 | $ 0 | 18,476 | 0 | 0 | 0 |
Stockholders' Equity, Other | (191,833) | 0 | 0 | 0 | 0 | (191,833) |
Balance at Dec. 31, 2014 | $ 438,087 | $ 1,093 | 922,112 | (485,115) | (53) | 50 |
Balance, shares at Dec. 31, 2014 | 109,277,060 | 109,277,060 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income (loss) | $ 47,234 | $ 0 | 0 | 47,234 | 0 | 0 |
Capital investment attributable to noncontrolling interest | 0 |  |  |  |  | 0 | $ 0
Unrealized loss on investment available for sale | $ (263) | $ 0 | 0 | 0 | (263) | 0 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period | 1,301,789 | 1,301,789 |  |  |  |  |
Stock options exercised, value | $ 9,807 | $ 13 | 9,794 | 0 | 0 | 0 |
Award of restricted stock units | (3,672) | $ 6 | (3,678) | 0 | 0 | 0 |
Stock Issued During Period, Shares, Performance Stock Award Gross |  | 481,749 |  |  |  |  |
Stock Issued During Period, Value, Performance Stock Award, Gross | (2,446) | $ 5 | (2,451) | 0 | 0 | 0 |
Award of restricted stock units, shares |  | 553,822 |  |  |  |  |
Share-based compensation costs | 19,264 | $ 0 | 19,264 | 0 | 0 | 0 |
Balance at Dec. 31, 2015 | $ 508,011 | $ 1,117 | $ 945,041 | $ (437,881) | $ (316) | $ 50 |
Balance, shares at Dec. 31, 2015 | 111,614,420 | 111,614,420 |  |  |  |  |

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