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Consolidated Statements of Shareholders' Equity Statement - USD ($) $ in Thousands | Total | Common Stock [Member] | Retained Earnings [Member]
--- | --- | --- | ---
Shareholders' equity, beginning balance at Dec. 31, 2017 |  | $ 97,523 | $ 1,663,864
Proceeds from stock options exercised |  | 0 |
Share-based compensation expense |  | 23 |
Net income (loss) | $ (42,607) |  |
Dividends paid to shareholders |  |  | (34,582)
Shareholders' equity, ending balance at Mar. 31, 2018 | 1,684,221 | 97,546 | 1,586,675
Shareholders' equity, beginning balance at Dec. 31, 2018 | 1,617,684 | 98,026 | 1,519,658
Proceeds from stock options exercised |  | 453 |
Share-based compensation expense |  | 16 |
Net income (loss) | 135,867 |  |
Dividends paid to shareholders |  |  | (34,726)
Shareholders' equity, ending balance at Mar. 31, 2019 | $ 1,719,294 | $ 98,495 | $ 1,620,799

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