Discontinued Operations (Additional Disclosures) (Details) $ in Millions			1 Months Ended	9 Months Ended
	Feb. 28, 2019 USD ($)	May 22, 2017 USD ($)	Feb. 29, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Aug. 16, 2017 USD ($)	May 23, 2017 USD ($)	Dec. 31, 2016 segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of segments with assets and liabilities classified as discontinued operations | segment									2
Production Technologies: | Discontinued operations, disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash consideration							$ 1.0	$ 2.9
Escrow deposit								$ 0.4
Notes receivables							$ 1.0
National Oilwell Varco, L.P. | Drilling Technologies | Discontinued operations, disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash consideration		$ 17.0
Escrow deposit		$ 1.5
Term of escrow deposit		18 months
Consumer and Industrial Chemistry Technologies | Discontinued operations, disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash consideration	$ 175.0
Discontinued operation, inventory retained				$ 11.1
Supply commitment, remaining minimum amount committed					$ 72.0
Drilling Technologies And Production Technologies
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Accounts receivable assumed						$ 0.3
Escrow assumed						1.4
Accrued liabilities assumed						$ 1.4
Working Adjustment Period 1 | Consumer and Industrial Chemistry Technologies | Discontinued operations, disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Contingent liabilities remaining	$ 4.4
Contingent liabilities remaining period	90 days
Working Adjustment Period 2-4 | Consumer and Industrial Chemistry Technologies | Discontinued operations, disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Contingent liabilities remaining	$ 13.1
Working Adjustment Period 2 | Consumer and Industrial Chemistry Technologies | Discontinued operations, disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Contingent liabilities remaining period	6 months
Working Adjustment Period 3 | Consumer and Industrial Chemistry Technologies | Discontinued operations, disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Contingent liabilities remaining period	12 months
Working Adjustment Period 4 | Consumer and Industrial Chemistry Technologies | Discontinued operations, disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Contingent liabilities remaining period	15 months
Subsequent event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Litigation settlement, amount awarded to other party			$ 4.1
Subsequent event | Archer-Daniels-Midland Company
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Litigation settlement, amount awarded to other party			$ 4.1
Other Current Assets [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operation, Escrow Balance					$ 9.9