| **Net Income Per Share (Tables)** | 6 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 and six months ended June 30, 2014 and 2013. Three Months Ended June 30, 20142013 Net IncomeWeighted-Average SharesPer ShareAmountNet IncomeWeighted-Average SharesPer ShareAmountBasic net income per share:$15,160  $10,815  Less: Preferred Stock dividends and discount accretion  (852)  Net income available to common stockholders15,16036,026,763$0.429,96328,783,407$0.35Effect of dilutive stock options and warrants267,386 240,106 Diluted net income per share:      Net income available to common stockholders$15,16036,294,149$0.41$9,96329,023,513$0.34 Six Months Ended June 30,  2014 2013 Net Income Weighted-Average Shares Per ShareAmount Net Income Weighted-Average Shares Per ShareAmountBasic net income per share:$28,780     $22,680    Less: Preferred Stock dividends and discount accretion      (1,709)    Net income available to common stockholders28,780 35,991,794 $0.80 20,971 28,750,197 $0.73Effect of dilutive stock options and warrants  285,754     246,577  Diluted net income per share:           Net income available to common stockholders$28,780 36,277,548 $0.79 $20,971 28,996,774 $0.72 |

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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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