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Earnings Per Share Earnings Per Share (Numerator and Denominator) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
Earnings Per Share [Abstract] |  |
Net income | $ 5,258 | $ 4,459
Less: Preferred Stock dividends | (4) | (4)
Net income available to common stockholders | 5,254 | 4,455
Effect of dilutive securities, Convertible junior subordinated debentures (TIDES) | 484 |
Net income available to common stockholders and assumed conversions | $ 5,738 |
Net income available to common stockholders (in shares) | 18,139 | 18,265
Effect of dilutive securities, Stock options (in shares) | 197 | 55
Effect of dilutive securities, Convertible junior subordinated debentures (in shares) | 4,392 | 0
Net income available to common stockholders and assumed conversions (in shares) | 22,728 | 18,320
Basic earnings per common share (in dollars per Share) | $ 0.29 | $ 0.24
Diluted earnings per common share (in dollars per Share) | $ 0.25 | $ 0.24

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