| **Supplemental Cash Flow Disclosures (Tables)**   | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
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| **Supplemental Cash Flow Information [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| Non-cash Investing and Financing Activities       | The following table presents information related to cash paid during the year for interest and income taxes as well as detail on non-cash investing and financing activities for the years ended December 31: 2014 2013 2012 (dollars in thousands)Cash paid during the period for:     Interest$18,943 $23,022 $31,597Income taxes10,700 3,080 11,641Non-cash investing and financing activities:     ESOP loan reductions$— $— $1,600Loans transferred to other real estate owned and repossessed assets5,061 12,326 4,979Other real estate owned sold and settled out of period— 348 —Fair value of loans transferred from held to maturity to available for sale3,035 20,135 —Gross increase (decrease) in market value adjustment to securities available for sale24,601 (33,792) (874)Unsettled treasury stock repurchases— — 1,222Contribution of premises682 — — |

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| - Definition
Tabular disclosure of supplemental cash flow information for the periods presented.
+ References
No definition available.
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