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Employee Benefit Plans Defined Benefit Plan Narrative (Details) $ in Millions | Dec. 31, 2019 USD ($)
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Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year |
Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year | $ 0.9
Pension Plans, Defined Benefit [Member] |
Defined Benefit Plan, Estimated Future Employer Contributions |
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year | $ 2.4

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