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Consolidated Statements of Stockholders' Equity - 6 months ended Jun. 30, 2016 - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock [Member] | Paid-in Capital [Member] | Retained Earnings [Member]
--- | --- | --- | --- | ---
Balance at Dec. 31, 2015 | $ 178,918 | $ 212 | $ 0 | $ 178,706
Balance (in shares) at Dec. 31, 2015 |  | 53,012 |  |
Net income | 25,147 |  |  |
Stock options exercised and restricted stock awards vested, including tax benefits | 2,384 | $ 1 | 2,383 |
Stock options exercised and restricted stock awards vested, including tax benefits (in shares) |  | 297 |  |
Share-based compensation | 2,043 |  | 2,043 |
Stock repurchased and retired | (7,674) | $ (1) | (4,426) | (3,247)
Stock repurchased and retired (in shares) |  | (301) |  |
Dividends | (5,834) |  |  | (5,834)
Balance at Jun. 30, 2016 | $ 194,984 | $ 212 | $ 0 | $ 194,772
Balance (in shares) at Jun. 30, 2016 |  | 53,008 |  |

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