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Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands | Total | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income (Loss), net [Member] | Treasury Stock [Member]
--- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2013 | $ 711,697 | $ 105,563 | $ 365,333 | $ 334,748 | $ (20,588) | $ (73,359)
Beginning balance, shares at Dec. 31, 2013 |  | 95,245,215 |  |  |  |
Net Income | 36,724 |  |  | 36,724 |  |
Other comprehensive income (loss) | 10,912 |  |  |  | 10,912 |
Dividends, declared (USD per share) | (19,754) |  |  | (19,754) |  |
Discount on dividend reinvestment plan purchases | (65) |  | (65) |  |  |
Treasury stock acquired | (30,928) |  |  |  |  | (30,928)
Treasury stock acquired, shares |  | (3,633,513) |  |  |  |
Treasury stock reissued | 192 |  | 35 | 0 |  | 157
Treasury stock reissued, shares |  | 21,960 |  |  |  |
Restricted stock | 706 | $ 0 | 273 | 0 |  | 433
Restricted stock, shares |  | 88,987 |  |  |  |
Ending balance at Sep. 30, 2014 | 709,484 | $ 105,563 | 365,576 | 351,718 | (9,676) | (103,697)
Ending balance, shares at Sep. 30, 2014 |  | 91,722,649 |  |  |  |
Beginning balance at Dec. 31, 2014 | $ 716,145 | $ 105,563 | 365,615 | 353,027 | (4,499) | (103,561)
Beginning balance, shares at Dec. 31, 2014 | 91,723,028 | 91,723,028 |  |  |  |
Net Income | $ 40,082 |  |  | 40,082 |  |
Other comprehensive income (loss) | 9,460 |  |  |  | 9,460 |
Dividends, declared (USD per share) | (18,862) |  |  | (18,862) |  |
Treasury stock acquired | (25,383) |  |  |  |  | (25,383)
Treasury stock acquired, shares |  | (2,918,066) |  |  |  |
Treasury stock reissued | 192 |  | 32 | 0 |  | 160
Treasury stock reissued, shares |  | 20,936 |  |  |  |
Restricted stock | 1,134 | $ 0 | 303 | 0 |  | 831
Restricted stock, shares |  | 135,370 |  |  |  |
Ending balance at Sep. 30, 2015 | $ 722,768 | $ 105,563 | $ 365,950 | $ 374,247 | $ 4,961 | $ (127,953)
Ending balance, shares at Sep. 30, 2015 | 88,961,268 | 88,961,268 |  |  |  |

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- Definition The cash outflow associated with the 5% discount on the shares issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the shareholders to reinvest dividends paid to them by the entity on new issues of stock by the entity. + References No definition available. + Details
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