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Consolidated Statements of Changes in Shareholders' Equity (unaudited) - USD ($) $ in Thousands | Total | Common stock | Retained Earnings | Accumulated other comprehensive income (loss)
--- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2014 | $ 1,790,573 | $ 1,521,297 | $ 296,654 | $ (27,378)
Balance (in shares) at Dec. 31, 2014 |  | 102,565,000 |  |
Increase (decrease) in stockholders' equity |  |  |  |
Net income for common stock | 66,884 |  | 66,884 |
Other comprehensive income, net of taxes | 931 |  |  | 931
Issuance of common stock, net | 105,272 | $ 105,272 |  |
Issuance of common stock, net (in shares) |  | 4,882,000 |  |
Common stock dividends | (65,140) |  | (65,140) |
Ending Balance at Jun. 30, 2015 | 1,898,520 | $ 1,626,569 | 298,398 | (26,447)
Balance (in shares) at Jun. 30, 2015 |  | 107,447,000 |  |
Beginning Balance at Dec. 31, 2015 | $ 1,927,640 | $ 1,629,136 | 324,766 | (26,262)
Balance (in shares) at Dec. 31, 2015 | 107,460,406 | 107,460,000 |  |
Increase (decrease) in stockholders' equity |  |  |  |
Net income for common stock | $ 76,480 |  | 76,480 |
Other comprehensive income, net of taxes | 10,908 |  |  | 10,908
Issuance of common stock, net | 18,002 | $ 18,002 |  |
Issuance of common stock, net (in shares) |  | 727,000 |  |
Common stock dividends | (66,848) |  | (66,848) |
Ending Balance at Jun. 30, 2016 | $ 1,966,182 | $ 1,647,138 | $ 334,398 | $ (15,354)
Balance (in shares) at Jun. 30, 2016 | 108,187,063 | 108,187,000 |  |

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