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Business Combinations and Divestitures - Divestitures Narrative (Details) - USD ($) $ in Millions			3 Months Ended			6 Months Ended
	Apr. 30, 2019	Mar. 28, 2018	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Jul. 11, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (Loss) on Disposition of Business			$ 114.0		$ 0.0	$ 112.0	$ 0.0
Discontinued Operations, Disposed of by Sale \| Reservoir Solutions Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Consideration	$ 206.0
Gain (Loss) on Disposition of Business	117.0
Disposal Group, Including Discontinued Operation, Assets	61.0
Discontinued Operations, Disposed of by Sale \| Surface Data Logging Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Assets	$ 34.0
Discontinued Operations, Disposed of by Sale \| Land Drilling Rigs
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Consideration				$ 72.0					$ 287.5
Escrow Deposit Liability								$ 11.0
Gain (Loss) on Disposition of Business				6.0
Disposal Group, Including Discontinued Operation, Assets				$ 66.0
Discontinued Operations, Disposed of by Sale \| Conventional Continuous Sucker Rod Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Consideration		$ 25.0
Gain (Loss) on Disposition of Business		2.0
Disposal Group, Including Discontinued Operation, Assets		$ 23.0