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Employee Benefit Plans - Pension Assumptions (Details)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Retirement Benefits [Abstract]    
Discount rate 1.00% 1.90%
Expected long-term rate of return on plan assets 2.00% 2.00%
Rate of compensation/salary increase 3.00% 3.00%
Future pension increase 1.50% 1.50%
Discount rate, net periodic benefit cost 1.00% 1.90%
Rate of compensation/salary increase, net periodic benefit cost 3.00% 3.00%