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Equity (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Equity activity |  |  |  |
Beginning balance |  |  | $ 632,438 |
Net income | 17,122 | 17,286 | 52,399 | 43,165
Vesting of Stock option and restricted common stock |  |  | 2,326 | 2,050
Stock option exercise |  |  | 277 |
Reclassification adjustment | (9) | (9) | (27) | (26)
Preferred stock dividends |  |  | (2,454) |
Common stock dividends |  |  | (53,275) |
Other |  |  | (7) |
Ending balance | $ 631,677 |  | $ 631,677 |

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