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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Preferred stock [Member] | Common stock [Member] | Additional paid-in capital [Member] | Treasury stock, at cost [Member] | Accumulated other comprehensive loss [Member] | Accumulated deficit [Member]
--- | --- | --- | --- | --- | --- | --- | ---
Balance, beginning at Dec. 31, 2013 | $ 993,753 | $ 1 | $ 935 | $ 2,508,574 | $ (49,924) | $ (91,832) | $ (1,374,001)
Net income (loss) | 126,474 |  |  |  |  |  | 126,474
Other comprehensive income (loss) | (38,501) |  |  |  |  | (38,501) |
Elimination of equity in investee resulting from acquisition | 12,651 |  |  |  |  | 12,651 |
Share-based compensation expense | 1,691 |  | 2 | 1,689 |  |  |
Conversion of preferred stock to common stock | 0 |  | 2 | (2) |  |  |
Balance, ending at Dec. 31, 2014 | 1,096,068 | 1 | 939 | 2,510,261 | (49,924) | (117,682) | (1,247,527)
Net income (loss) | (59,310) |  |  |  |  |  | (59,310)
Other comprehensive income (loss) | 5,032 |  |  |  |  | 5,032 |
Repurchase of common stock | (36,352) |  |  |  | (36,352) |  |
Share-based compensation expense | 3,373 |  | 1 | 3,372 |  |  |
Conversion of preferred stock to common stock | 0 |  | 2 | (2) |  |  |
Balance, ending at Dec. 31, 2015 | 1,008,811 | 1 | 942 | 2,513,631 | (86,276) | (112,650) | (1,306,837)
Net income (loss) | (16,163) |  |  |  |  |  |
Other comprehensive income (loss) | 823 |  |  |  |  |  |
Balance, ending at Mar. 31, 2016 |  |  |  |  |  | (111,827) |
Balance, beginning at Dec. 31, 2015 | 1,008,811 | 1 | 942 | 2,513,631 | (86,276) | (112,650) | (1,306,837)
Net income (loss) | (252,415) |  |  |  |  |  | (252,415)
Other comprehensive income (loss) | (1,243) |  |  |  |  | (1,243) |
Share-based compensation expense | 1,502 |  |  | 1,502 |  |  |
Conversion of preferred stock to common stock | 0 |  | 2 | (2) |  |  |
Balance, ending at Dec. 31, 2016 | 756,655 | $ 1 | $ 944 | $ 2,515,131 | $ (86,276) | (113,893) | $ (1,559,252)
Net income (loss) | (15,139) |  |  |  |  |  |
Other comprehensive income (loss) | 712 |  |  |  |  |  |
Balance, ending at Mar. 31, 2017 | $ 742,744 |  |  |  |  | $ (113,181) |

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