Divestitures Narrative (Details) - USD ($) $ in Millions		1 Months Ended	3 Months Ended				11 Months Ended	12 Months Ended
	Mar. 28, 2018	Dec. 31, 2019	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Dec. 13, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Sep. 30, 2019	Jul. 11, 2018	Dec. 29, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Consideration													$ 430.0
Asset Impairment Charges								$ 20.0
Gain on Sale of Businesses, Net		$ 0.0		$ (114.0)			$ 112.0		$ 0.0	$ (96.0)
Proceeds from Divestiture of Businesses		7.0					$ 328.0		257.0
Land Drilling Rig [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Asset Impairment Charges					$ 58.0
Business Operations Held for Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment of Long-Lived Assets to be Disposed of						$ 18.0
Discontinued Operations, Held-for-sale [Member] | Laboratory Service Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Consideration											$ 206.0
Gain on Sale of Businesses, Net								117.0
Disposal Group, Including Discontinued Operation, Assets											61.0
Discontinued Operations, Held-for-sale [Member] | Business Operations Held for Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Liabilities, Current						17.0			17.0
Discontinued Operations, Disposed of by Sale [Member] | Surface Data Logging Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses			$ 50.0
Disposal Group, Including Discontinued Operation, Assets											$ 34.0
Discontinued Operations, Disposed of by Sale [Member] | Land Drilling Rig [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Consideration					72.0	216.0			216.0			$ 288.0
Gain on Sale of Businesses, Net					(6.0)	(9.0)
Disposal Group, Including Discontinued Operation, Assets				$ 66.0		253.0			253.0
Disposal Group, Including Discontinued Operation, Other Liabilities						36.0			36.0
Discontinued Operations, Disposed of by Sale [Member] | Conventional Continuous Sucker Rod Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	$ 14.0
Disposal Group, Including Discontinued Operation, Goodwill	8.0
Disposal Group, Including Discontinued Operation, Inventory, Current	1.0
Disposal Group, Including Discontinued Operation, Consideration	25.0
Gain on Sale of Businesses, Net	(2.0)
Disposal Group, Including Discontinued Operation, Assets	$ 23.0
Discontinued Operations, Disposed of by Sale [Member] | sale of equity investment [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Consideration		$ 12.5	$ 12.5					$ 12.5
Gain on Sale of Businesses, Net					$ (3.0)
Discontinued Operations, Disposed of by Sale [Member] | U.S. Pressure Pumping and Pump-Down [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Goodwill						162.0			162.0
Disposal Group, Including Discontinued Operation, Inventory, Current						7.0			7.0
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Noncurrent						222.0			222.0
Disposal Group, Including Discontinued Operation, Assets						391.0			391.0
Disposal Group, Including Discontinued Operation, Other Liabilities						52.0			52.0
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent						9.0			9.0
Disposal Group, Including Discontinued Operation, Liabilities						$ 61.0			$ 61.0