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Goodwill and Other Intangible Assets - Goodwill (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2018 USD ($) number	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Goodwill [Roll Forward]
Goodwill, Gross					$ 3,736,408
Accumulated impairment loss					(70,561)
Balance	$ 3,686,372			$ 3,665,847
Acquired Goodwill	46,711			30,180
Purchase price adjustments	328			(29,113)
Goodwill, Written off Related to Sale of Business Unit				(79,409)
Foreign currency translation	(59,629)			98,867
Balance	3,677,328			3,686,372
Disposal Group, Including Discontinued Operation, Goodwill, Current	899,888	$ 899,888	$ 899,888
Number of Reporting Units		7	7
Engineered Systems Segment [Member]
Goodwill [Roll Forward]
Goodwill, Gross					1,636,291
Accumulated impairment loss					(10,591)
Balance	1,645,389			1,625,700
Goodwill Reallocation Due to Apergy	3,546
Acquired Goodwill	0			30,180
Purchase price adjustments	328			6,826
Goodwill, Written off Related to Sale of Business Unit				(79,113)
Foreign currency translation	(25,603)			61,796
Balance	1,623,660			1,645,389
Fluids Segment [Member]
Goodwill [Roll Forward]
Goodwill, Gross					1,563,938
Accumulated impairment loss					(59,970)
Balance	1,504,284			1,503,968
Goodwill Reallocation Due to Apergy	0
Acquired Goodwill	36,303			0
Purchase price adjustments	0			(35,939)
Goodwill, Written off Related to Sale of Business Unit				0
Foreign currency translation	(32,985)			36,255
Balance	1,507,602			1,504,284
Refrigeration and Food Equipment Segment [Member]
Goodwill [Roll Forward]
Goodwill, Gross					536,179
Accumulated impairment loss					$ 0
Balance	536,699			536,179
Goodwill Reallocation Due to Apergy	0
Acquired Goodwill	10,408			0
Purchase price adjustments	0			0
Goodwill, Written off Related to Sale of Business Unit				(296)
Foreign currency translation	(1,041)			816
Balance	$ 546,066			$ 536,699
Minimum [Member]
Goodwill [Roll Forward]
Fair value discount rate, percent		8.50%
Maximum [Member]
Goodwill [Roll Forward]
Fair value discount rate, percent		9.50%