| **Supplemental Cash Flow Disclosures (Tables)**   | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
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| **Supplemental Cash Flow Information [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
| Schedule of Supplemental Cash Flow Disclosures    | The following table presents information related to cash paid during the period for interest, as well as detail on non-cash investing and financing activities for the nine months endedSeptember 30: 2015 2014 (dollars in thousands)Cash paid during the period for:   Interest$11,682 $14,747Income taxes4,000 7,700Non-cash investing and financing activities:   Loans transferred to other real estate owned and repossessed assets7,413 4,239Loans transferred from held to maturity to held for sale3,071 3,035Gross increase in market value adjustment to securities available for sale12,381 16,812Gross increase (decrease) in market value adjustment to derivatives2,167 (27)Investments committed to purchase, not settled1,350 1,000 |

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Tabular disclosure of supplemental cash flow information for the periods presented.
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No definition available.
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