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Employee Benefit Plans - Schedule of Allocation of Plan Assets (Details) | 12 Months Ended |
--- | --- | ---
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%

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