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Consolidated Condensed Statement of Changes in Stockholders' Equity (USD $) In Thousands, except Share data | Total | Common Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Income | Treasury Stock
--- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2013 | $ 2,755,997 | $ 1,865 | $ 913,505 | $ 2,707,439 | $ 14,076 | $ (880,888)
Beginning Balance (in shares) at Dec. 31, 2013 | 186,487,246 | 186,487,000 |  |  |  |
Net income | 34,822 |  |  | 34,822 |  |
Foreign currency translation adjustment | (3,355) |  |  |  | (3,355) |
Issuance of restricted stock |  | 15,000 |  |  |  |
Forfeitures of restricted stock (in shares) |  | (13,000) |  |  |  |
Forfeitures of restricted stock |  |  |  |  |  |
Exercise of stock options (in shares) | 482,500 | 483,000 |  |  |  |
Exercise of stock options | 8,033 | 5 | 8,028 |  |  |
Stock-based compensation | 6,711 |  | 6,711 |  |  |
Tax benefit related to stock-based compensation | 1,961 |  | 1,961 |  |  |
Payment of cash dividends | (14,456) |  |  | (14,456) |  |
Purchase of treasury stock | (43) |  |  |  |  | (43)
Ending Balance at Mar. 31, 2014 | $ 2,789,670 | $ 1,870 | $ 930,205 | $ 2,727,805 | $ 10,721 | $ (880,931)
Ending Balance (in shares) at Mar. 31, 2014 | 186,971,989 | 186,972,000 |  |  |  |

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