| **Supplemental Cash Flow Disclosures (Tables)**   | 6 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 six months endedJune 30: 2014 2013 (dollars in thousands)Cash paid during the period for:   Interest$10,024 $12,990Income taxes3,700 2,200Non-cash investing and financing activities:   Loans transferred to other real estate owned and repossessed assets2,726 7,371Loans transferred from held to maturity to held for sale3,035 20,135Gross increase (decrease) in market value adjustment to securities available for sale22,397 (27,625)Investments committed to purchase, not settled2,732 —Unsettled treasury stock repurchases38 —Proceeds from death benefit on bank-owned life insurance not received1,062 — |

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| - Definition
Tabular disclosure of supplemental cash flow information for the periods presented.
+ References
No definition available.
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| - Details**Name:**us-gaap_SupplementalCashFlowInformationAbstract**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |