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v3.20.2

Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands | Common Stock | Treasury Stock | Additional Paid-in Capital | Accumulated Other Comprehensive Income (Loss) | Retained Earnings | Total
--- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2018 | $ 527 | $ (125,452) | $ 256,806 | $ (453) | $ 1,082,169 | $ 1,213,597
Beginning Balance, Shares at Dec. 31, 2018 | 52,690 | 4,489 |  |  |  |
Comprehensive income |  |  |  | (271) | 124,355 | 124,084
Common stock purchased for treasury |  | $ (10,340) |  |  |  | (10,340)
Common stock acquired, shares |  | 111 |  |  |  |
Restricted shares forfeited, Shares |  | 14 |  |  |  |
Share-based compensation | $ 1 | $ (8,127) | 5,184 |  |  | (2,942)
Share-based compensation, Shares | 152 | 68 |  |  |  |
Exercise of stock options | $ 2 |  | 3,406 |  |  | 3,408
Exercise of stock options, Shares | 191 |  |  |  |  |
Ending Balance at Jun. 30, 2019 | $ 530 | $ (143,919) | 265,396 | $ (724) | 1,206,524 | 1,327,807
Ending Balance, Shares at Jun. 30, 2019 | 53,033 | 4,682 |  |  |  |
Beginning Balance at Dec. 31, 2019 | $ 531 | $ (169,365) | 270,923 |  | 1,341,344 | 1,443,433
Beginning Balance, Shares at Dec. 31, 2019 | 53,054 | 4,949 |  |  |  |
Comprehensive income |  |  |  |  | 118,395 | 118,395
Common stock purchased for treasury |  | $ (69,048) |  |  |  | (69,048)
Common stock acquired, shares |  | 898 |  |  |  |
Restricted shares forfeited, Shares |  | 10 |  |  |  |
Share-based compensation | $ 1 | $ (4,969) | 5,333 |  |  | 365
Share-based compensation, Shares | 167 | 62 |  |  |  |
Exercise of stock options |  |  | 74 |  |  | 74
Exercise of stock options, Shares | 4 |  |  |  |  |
Ending Balance at Jun. 30, 2020 | $ 532 | $ (243,382) | $ 276,330 |  | 1,455,907 | 1,489,387
Ending Balance, Shares at Jun. 30, 2020 | 53,225 | 5,919 |  |  |  |
Cumulative effect from the adoption of accounting pronouncements, net of taxes |  |  |  |  | $ (3,832) | $ (3,832)

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