Employee Benefit Plans - Schedule of Allocation of Plan Assets (Details)	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	100.00%
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	100.00%	100.00%
Cash and Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	5.00%
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	7.50%	6.10%
Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	65.00%
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	67.00%	68.90%