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Employee Benefit Plans (Narrative) (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |
Incentive stock options and SARs exercisable period | 10 years |
Stock awards available to be awarded | 451,000 |
Contributions by employer | $ 0 | $ 1,509,000
Supplemental Unemployment Benefits, Severance Benefits | $ 2,100,000 | 2,100,000
Performance Shares [Member] |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |
Award vesting rights, percentage | 33.33% |
Median return on average assets of all FDIC insured depository institutions time period | 20 years |
Maximum |  |
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 |
Equity Securities |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 50.00% |
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage | 57.00% |
Debt Securities |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage | 50.00% |
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage | 42.00% |
Cash and Cash Equivalents |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage | 1.00% |
Horizon Defined Benefit Plan |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |
Contributions by employer | $ 0 |
Anticipated next year plan contributions | $ 0 |
Community Defined Benefit Plan |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |
Contributions by employer |  | $ 1,500,000

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- Definition Amount of contribution received by defined benefit plan from employer which increases plan assets. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Liability for amount due employees, in addition to wages and any other money that employers owe employees, when their employment ends through a layoff or other termination. For example, a company may provide involuntarily terminated employees with a lump sum payment equal to one week's salary for every year of employment. + References No definition available. + Details
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