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Employee Benefit Plans (Reconciliation of Changes in Plan Assets) (Details) - Pension Plan
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Change in plan assets  
Fair value of plan assets at beginning of year $ 14,850
Actual return on plan assets 9
Purchases, sales and settlements (15)
Fair value of plan assets at end of year 16,912
Level 3  
Change in plan assets  
Fair value of plan assets at beginning of year 239
Fair value of plan assets at end of year $ 233