Goodwill and Intangible Assets - Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Goodwill [Roll Forward]
Goodwill, beginning of period	$ 904,985	$ 910,088
Purchase price adjustment		(53)
Foreign currency translation	618	(5,050)
Acquisitions	5,510
Goodwill, end of period	911,113	904,985
Production & Automation Technologies
Goodwill [Roll Forward]
Goodwill, beginning of period	803,849	808,952
Purchase price adjustment		(53)
Foreign currency translation	618	(5,050)
Acquisitions	5,510
Goodwill, end of period	809,977	803,849
Drilling Technologies
Goodwill [Roll Forward]
Goodwill, beginning of period	101,136	101,136
Purchase price adjustment		0
Foreign currency translation	0	0
Acquisitions	0
Goodwill, end of period	$ 101,136	$ 101,136

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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