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Employee Benefit Plans (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]      
Contribution to pension plan in excess of minimum required contribution $ 0 $ 0 $ 0
Accumulated benefit obligation $ 90,100 $ 88,900  
Investment strategy, percentage in long-term growth 97.00%    
Investment strategy, percentage in near-term benefit payments 3.00%    
Percentage of Plan assets 100.00% 99.00%  
Postretirement benefit plan, accrued liabilities $ 33 $ 108  
Minimum [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Percentage of portfolio invest directly or indirectly 35.00%    
Percentage of remaining portfolio invest directly or indirectly 10.00%    
Maximum [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Percentage of portfolio invest directly or indirectly 90.00%    
Percentage of remaining portfolio invest directly or indirectly 65.00%    
SERP [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Unfunded pension liability $ 1,000 1,300  
Pension expense $ 39 $ 51 $ 366
Investment Firm One [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Portfolio management, controlled percentage 100.00% 99.00%  
Defined Benefit Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Portfolio management, controlled percentage   1.00%