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Employee Benefit Plans - Assumptions Used To Determine Benefit Obligations (Details)
Dec. 31, 2016
Dec. 31, 2015
Feb. 27, 2015
Defined Benefit Plan Weighted Average Assumptions Used In Calculating Benefit Obligation [Abstract]      
Discount rate 1.80% 2.40% 1.70%
Rate of compensation increase 2.80% 2.80% 3.00%
Pension increase 1.60% 1.60% 1.80%
Turnover 2.00% 2.00% 2.00%