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Employee Benefit Plans (Narrative) (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Incentive stock options and SARs exercisable period | 10 years |  |
Stock awards had been awarded | 411,601 |  |
Proceeds from exercise of stock options | $ 4,236,000 | $ 544,000 | $ 262,000
Total intrinsic value of stock options exercised | 900,000 | 100,000 |
Stock-based compensation expense | 200,000 | 200,000 | 200,000
Income tax benefit recognized related to stock-based compensation | 300,000 |  |
Unrecognized stock-based compensation expense | 400,000 |  |
Weighted-average period, unrecognized expense expected to be recognized | 1 year 7 months 6 days |  |
Stock-based compensation expense related to restricted shares | 800,000 | 600,000 | 600,000
Total expense associated with the retirement benefit plan | 800,000 | 600,000 | 600,000
Number of shares of the Company's common stock held by the 401(k) | 271,749 | 293,703 |
Recorded a pension liability | 2,800,000 | 4,200,000 |
Underfunded pension liability | 2,900,000 | 5,000,000 |
Anticipated 2013 plan contributions | 400,000 |  |
Executive officers benefit accrued time period | 4 years |  |
Executive officers accrued benefit liability | 2,000,000 | 2,000,000 |
Deferred compensation agreement costs | 200,000 | 200,000 | 200,000
Deferred compensation agreement liabilities | 7,000,000 | 3,900,000 |
Cash surrender value of company owned life insurance | 7,600,000 | 7,400,000 |
Non-Vested Restricted Shares [Member] |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Unrecognized stock-based compensation expense | 2,700,000 |  |
Weighted-average period, unrecognized expense expected to be recognized | 3 years 10 months 24 days |  |
Restricted Stock [Member] |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Stock awards had been awarded | 188,994 |  |
Maximum [Member] |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Common stock issued upon the exercise of stock options, SARs and stock awards | 750,000 |  |
Total intrinsic value of stock options exercised |  |  | 100,000
Income tax benefit recognized related to stock-based compensation |  | $ 100,000 | $ 100,000
Horizon Defined Benefit Plan [Member] [Member] |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Overall investment return goal above stated indices | 0.50% |  |
Moving average basis | 5 years |  |
Maximum percent of plan assets in any one security | 15.00% |  |
Maximum percent of plan assets in any on industry | 25.00% |  |
Maximum percent of plan assets in foreign securities | 25.00% |  |
Community Defined Benefit Plan [Member] |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Defined benefit plan, allocation allowance | 5.00% |  |
Community Defined Benefit Plan [Member] | Maximum [Member] |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Moving average basis | 5 years |  |
Allocation for sub-asset class within equity and fixed classes | 150.00% |  |
Community Defined Benefit Plan [Member] | Minimum [Member] |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Moving average basis | 3 years |  |
Allocation for sub-asset class within equity and fixed classes | 50.00% |  |
Pentegra Defined Benefit Plan for Financial Institutions [Member] |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Defined Benefit Plan, Funded Percentage | 100.42% |  |

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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- Definition Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 17 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 4 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6812-107765 + Details
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- Definition Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
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