Business Combinations and Divestitures - Divestitures Narrative (Details) - Discontinued Operations, Disposed of by Sale - USD ($) $ in Millions		3 Months Ended
Mar. 28, 2018	Sep. 30, 2018
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
Assets	14.0
Disposal Group, Including Discontinued Operation, Goodwill	8.0
Inventory	$ 1.0
Sale of equity investment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Consideration		$ 12.5
Gain (Loss) on Disposition of Business		$ 3.0

Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer.

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