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Restructuring Activities - Narratives (Details) $ in Millions		3 Months Ended		6 Months Ended
	Jul. 17, 2020 USD ($) a	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Restructuring Cost and Reserve
Restructuring costs		$ 5.6	$ 4.4	$ 10.8	$ 11.8
Subsequent Event | Forecast
Restructuring Cost and Reserve
Expected project completed term	9 months
Subsequent Event | Facility In Beasley, Texas
Restructuring Cost and Reserve
Area of land (acres) | a	260
Subsequent Event | Lease facility in Tulsa, Oklahoma | Facility Closing | Forecast
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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