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v3.19.1

Condensed Consolidated Statement of Changes in Stockholders' Equity - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Income (Loss), Net
--- | --- | --- | --- | --- | ---
Common Stock, Dividends, Per Share, Declared | $ 0.05 |  |  |  |
Balances at Dec. 31, 2017 | $ 1,097,227 | $ 1,126 | $ 931,858 | $ 164,425 | $ (182)
Balance, shares at Dec. 31, 2017 |  | 112,634,418 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income | 41,399 | $ 0 | 0 | 41,399 | 0
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income | 0 | 0 | 0 | (312) | 312
Other Comprehensive Income (Loss), Net of Tax | (964) | $ 0 | 0 | 0 | (964)
Stock options exercised |  | 221,400 |  |  |
Stock options exercised | 2,045 | $ 2 | 2,043 | 0 | 0
Release of restricted stock units, net of tax |  | 16,957 |  |  |
Release of restricted stock units, net of tax | (364) | $ 0 | (364) | 0 | 0
Release of performance stock units, net of tax |  | 337,537 |  |  |
Stock Issued During Period, Value, Performance Stock Award, Net of Forfeitures | (5,270) | $ 4 | (5,274) | 0 | 0
Stock Repurchased and Retired During Period, Shares |  | (559,089) |  |  |
Stock Repurchased and Retired During Period, Value | (19,803) | $ (6) | (19,797) | 0 | 0
Dividends, Cash | (5,635) | 0 | 0 | (5,635) | 0
Share-based compensation costs | 8,927 | 0 | 8,927 | 0 | 0
Balances at Mar. 31, 2018 | $ 1,117,562 | $ 1,126 | 917,393 | 199,877 | (834)
Balance, shares at Mar. 31, 2018 |  | 112,651,223.000 |  |  |
Common Stock, Dividends, Per Share, Declared | $ 0.06 |  |  |  |
Balances at Dec. 31, 2018 | $ 1,145,741 | $ 1,118 | 892,331 | 253,357 | (1,065)
Balance, shares at Dec. 31, 2018 | 111,757,105 | 111,757,105 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income | $ 45,451 | $ 0 | 0 | 45,451 | 0
Other Comprehensive Income (Loss), Net of Tax | 465 | $ 0 | 0 | 0 | 465
Stock options exercised |  | 137,063 |  |  |
Stock options exercised | 1,262 | $ 1 | 1,261 | 0 | 0
Release of restricted stock units, net of tax |  | 46,958 |  |  |
Release of restricted stock units, net of tax | (418) | $ 0 | (418) | 0 | 0
Release of performance stock units, net of tax |  | 270,960 |  |  |
Stock Issued During Period, Value, Performance Stock Award, Net of Forfeitures | (3,765) | $ 3 | (3,768) | 0 | 0
Stock Repurchased and Retired During Period, Shares |  | (830,100) |  |  |
Stock Repurchased and Retired During Period, Value | (21,653) | $ (8) | (21,645) | 0 | 0
Dividends, Cash | (6,683) | 0 | 0 | (6,683) | 0
Share-based compensation costs | 9,709 | 0 | 9,709 | 0 | 0
Balances at Mar. 31, 2019 | $ 1,170,109 | $ 1,114 | $ 877,470 | $ 292,125 | $ (600)
Balance, shares at Mar. 31, 2019 | 111,381,986 | 111,381,986.000 |  |  |

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