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