Segment Information - Other Business Segment Information (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Capital expenditures	$ 39,780	$ 57,918	$ 36,654
Depreciation and amortization	119,938	124,461	112,862
Reporting segments \| Production & Automation Technologies
Segment Reporting Information [Line Items]
Capital expenditures	30,291	45,190	28,483
Depreciation and amortization	110,131	112,955	100,912
Reporting segments \| Drilling Technologies
Segment Reporting Information [Line Items]
Capital expenditures	9,061	11,123	8,171
Depreciation and amortization	9,263	11,037	11,950
Corporate expense and other \| Corporate
Segment Reporting Information [Line Items]
Capital expenditures	428	1,605	0
Depreciation and amortization	$ 544	$ 469	$ 0

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585

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