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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 | 89,105 |  |  | 89,105 |  |
Foreign currency translation adjustment | 1,133 |  |  |  | 1,133 |
Issuance of restricted stock (in shares) |  | 1,057,000 |  |  |  |
Issuance of restricted stock |  | 11 | (11) |  |  |
Vesting of stock unit awards |  | 10,000 |  |  |  |
Forfeitures of restricted stock (in shares) |  | (28,000) |  |  |  |
Exercise of stock options (in shares) | 1,433,195 | 1,433,000 |  |  |  |
Exercise of stock options | 26,859 | 14 | 26,845 |  |  |
Stock-based compensation | 12,959 |  | 12,959 |  |  |
Tax benefit related to stock-based compensation | 8,556 |  | 8,556 |  |  |
Payment of cash dividends | (29,018) |  |  | (29,018) |  |
Purchase of treasury stock | (18,147) |  |  |  |  | (18,147)
Ending Balance at Jun. 30, 2014 | $ 2,847,444 | $ 1,890 | $ 961,854 | $ 2,767,526 | $ 15,209 | $ (899,035)
Ending Balance (in shares) at Jun. 30, 2014 | 188,958,501 | 188,959,000 |  |  |  |

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