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v3.19.3

Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands | Common Stock [Member] | Treasury Stock [Member] | Additional Paid-in Capital [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Retained Earnings [Member] | Total
--- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2017 | $ 523 | $ (100,694) | $ 232,670 | $ (724) | $ 854,176 | $ 985,951
Beginning Balance, Shares at Dec. 31, 2017 | 52,277 | 4,152 |  |  |  |
Comprehensive income |  |  |  | 228 | 153,480 | 153,708
Adoption impact - ASU 2018-02 |  |  |  | (156) | 156 |
Common stock purchased for treasury |  | $ (4,135) |  |  |  | (4,135)
Common stock purchased for treasury, shares |  | 39 |  |  |  |
Restricted shares forfeited, Shares |  | 94 |  |  |  |
Share-based compensation | $ 2 | $ (15,153) | 17,064 |  |  | 1,913
Share-based compensation, Shares | 163 | 151 |  |  |  |
Exercise of stock options | $ 1 |  | 2,094 |  |  | 2,095
Exercise of stock options, Shares | 130 |  |  |  |  |
Ending Balance at Sep. 30, 2018 | $ 526 | $ (119,982) | 251,828 | (652) | 1,006,638 | 1,138,358
Ending Balance, Shares at Sep. 30, 2018 | 52,570 | 4,436 |  |  |  |
Cumulative effect from the adoption of accounting pronouncements, net of taxes |  |  |  |  | (1,174) | (1,174)
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 |  |  |  | (329) | 182,506 | 182,177
Common stock purchased for treasury |  | $ (17,293) |  |  |  | (17,293)
Common stock purchased for treasury, shares |  | 175 |  |  |  |
Restricted shares forfeited, Shares |  | 15 |  |  |  |
Share-based compensation | $ 1 | $ (8,127) | 7,739 |  |  | (387)
Share-based compensation, Shares | 152 | 68 |  |  |  |
Exercise of stock options | $ 2 |  | 3,734 |  |  | 3,736
Exercise of stock options, Shares | 208 |  |  |  |  |
Ending Balance at Sep. 30, 2019 | $ 530 | $ (150,872) | $ 268,279 | $ (782) | $ 1,264,675 | $ 1,381,830
Ending Balance, Shares at Sep. 30, 2019 | 53,050 | 4,747 |  |  |  |

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