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Restructuring Activities - Narratives (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Jul. 17, 2020 a
Restructuring Cost and Reserve
Restructuring costs	$ 1.9	$ 1.5	$ 12.7	$ 13.3
Facility In Beasley, Texas
Restructuring Cost and Reserve
Area of land (acres) | a					260
Lease facility in Tulsa, Oklahoma | Facility Closing
Restructuring Cost and Reserve
Restructuring costs			1.5
Lease facility in Tulsa, Oklahoma | Facility Closing | Scenario, Plan [Member]
Restructuring Cost and Reserve
Restructuring costs			$ 9.0

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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