Employee Benefit Plans - Schedule of Allocation of Plan Assets (Details)	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	100.00%
Defined Benefit Plan, Actual Plan Asset Allocations	100.00%	100.00%
Cash and Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	1.00%
Defined Benefit Plan, Actual Plan Asset Allocations	6.90%	6.30%
Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	68.00%
Defined Benefit Plan, Actual Plan Asset Allocations	65.50%	68.00%
Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	31.00%
Defined Benefit Plan, Actual Plan Asset Allocations	27.60%	25.70%