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Employee Benefit Plans (Change on Benefit Obligations and Plan Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Change in benefit obligation:      
Benefit Obligation, beginning of year $ 52,510 $ 42,291  
Service Cost 6,020 5,493 $ 4,351
Interest Cost 1,576 1,469 1,340
Actuarial Loss (Gain) (3,051) 4,005  
Benefits Paid (1,121) (748)  
Benefit Obligation, end of year 55,934 52,510 42,291
Change in plan assets:      
Fair Value of Plan Assets, beginning of year 32,043 24,051  
Actual Return on Plan Assets 2,051 4,123  
Employer Contributions 2,315 4,617  
Benefits Paid (1,121) (748)  
Fair Value of Plan assets, end of year 35,288 32,043 $ 24,051
Funded Status at end of period (20,646) (20,467)  
Amounts recognized in the Consolidated Balance Sheets:      
Non-current assets 0 0  
Current liabilities 0 0  
Non-current Liabilities (20,646) (20,467)  
Net Liability at end of year (20,646) (20,467)  
Amounts recognized in accumulated other comprehensive loss:      
Prior Service Cost 5,189 5,676  
Net actuarial loss 418 3,689  
Amounts recognized in accumulated other comprehensive loss: $ 5,607 $ 9,365