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Employee Benefits Narrative (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Defined Benefit Plan Disclosure |  |  |
Payment for Other Postretirement Benefits | $ 2.9 | $ 2.1 |
Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring |  |  |
Defined Benefit Plan Disclosure |  |  |
Fair value of deferred compensation assets | 7.6 |  | $ 8.1
Postretirement Health Coverage | Salaried VEBA |  |  |
Defined Benefit Plan Disclosure |  |  |
Maximum contribution threshold | 2.9 |  |
Payment for Other Postretirement Benefits |  | $ 2.9 |
Accrued salaries, wages and related expenses |  |  |
Defined Benefit Plan Disclosure |  |  |
Accrued salaries, wages and related expenses | $ 3.7 |  |

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- Definition Carrying value as of the balance sheet date of obligations incurred and payable for incentive compensation awarded to employees and directors or earned by them based on the terms of one or more relevant arrangements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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