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Pension and Postretirement Benefits - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 30, 2019 USD ($)
Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Amount expected to contribute in postretirement benefit plans	$ 1.2
Pension and Other Postretirement Benefit Contributions	0.7
Funded Plans | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Amount expected to contribute in funded pension plans	1.0
Pension Contributions	1.0
Unfunded Pension Plans | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Amount expected to contribute in unfunded pension plans	1.2
Pension Contributions	$ 0.7

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- Definition

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- Definition

Amount of contributions expected to be received by defined benefit plan from employer in fiscal year. Excludes contributions paid by employer in current fiscal year.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920

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Amount of cash outflow for pension and other postretirement benefits. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585

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Amount of cash outflow for pension benefit. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree. Excludes other postretirement benefit.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
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Defined benefit funded pension plan estimated future employer contributions in current fiscal year.

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Defined benefit unfunded pension plan estimated future employer contributions in current fiscal year.

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