| **Net Income Per Share (Tables)** | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
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| **Earnings Per Share [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| Net Income Per Share              | The following table reconciles basic and diluted net income per share for the three months ended September 30, 2013 and 2012. Three Months Ended September 30, 20132012 Net IncomeWeighted-Average SharesPer ShareAmountNet IncomeWeighted-Average SharesPer ShareAmountBasic net income per share:$10,403  $11,236  Less: Preferred Stock dividends and discount accretion(430)  (1,134)  Net income available to common stockholders9,97328,806,809$0.3510,10228,649,996$0.35Effect of dilutive stock options and warrants274,663 238,080 Diluted net income per share:      Net income available to common stockholders$9,97329,081,472$0.35$10,10228,888,076$0.35The following table reconciles basic and diluted net income per share for the nine months ended September 30, 2013 and 2012 . Nine Months Ended September 30, 20132012 Net IncomeWeighted-Average SharesPer ShareAmountNet IncomeWeighted-Average SharesPer ShareAmountBasic net income per share:$33,083  $34,812  Less: Preferred Stock dividends and discount accretion(2,139)  (3,404)  Net income available to common stockholders30,94428,769,206$1.0831,40828,619,186$1.09Effect of dilutive stock options and warrants257,260 200,097 Diluted net income per share:      Net income available to common stockholders$30,94429,026,466$1.07$31,40828,819,283$1.09 |

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| - Definition
Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257
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