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Employee Benefit Plans (Fair Value Assumptions) (Details)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Weighted average assumptions used to determine benefit obligation:    
Discount Rate 3.06% 3.56%
Expected Long-term Rate of Return 5.47% 6.06%
Discount rate used to determine net periodic cost at the beginning of the period 3.56% 3.56%