| **Derivatives (Tables)**                                                               | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
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| **Derivative Instruments and Hedging Activities Disclosure [Abstract]**                |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| Credit Value Adjustment Recorded Related to Notional Amount Of Derivatives Outstanding | The following table depicts the credit value adjustment recorded related to the notional amount of derivatives outstanding as well as the notional amount of risk participation agreements participated to other banks:  June 30, 2014 December 31, 2013 (dollars in thousands)Credit value adjustment$360 $77Notional Amount:   Interest rate derivatives307,909 274,718Interest rate caps7,219 7,500Risk participation agreements103,196 82,197Sold credit protection on risk participation agreements(24,929) (19,161) |
| Schedule of Changes in Fair Value of Derivative Assets and Liabilities                 | The table below presents the amount representing the change in the fair value of derivative assets and derivative liabilities attributable to credit risk included in other income on the Condensed Consolidated Statements of Income: For the Three Months Ended June 30, For the Six Months Ended June 30, 2014 2013 2014 2013 (dollars in thousands)Non-hedging interest rate derivatives:       Increase in other income$342 $78 $284 $1,067                                                 |

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| - Definition
Notional amounts and credit value adjustment recorded related to the notional amount of derivatives outstanding.
+ References
No definition available.
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| - Definition
Tabular disclosure of interest rate derivatives, including, but not limited to, the fair value of the derivatives, statement of financial position location, and statement of financial performance location of these instruments.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959
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