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Goodwill and Other Intangible Assets - Goodwill (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) number	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Goodwill [Roll Forward]
Goodwill, Gross			$ 3,747,889
Accumulated impairment loss			(70,561)
Balance	$ 3,783,347	$ 3,677,328
Goodwill Reallocation Due to Apergy		0
Acquired Goodwill	205,805	119,512
Goodwill, Written off Related to Sale of Business Unit	(2,597)	(4,739)
Foreign currency translation	85,987	(8,754)
Balance	$ 4,072,542	3,783,347
Number of Reporting Units | number	15
Engineered Products Segment [Member]
Goodwill [Roll Forward]
Goodwill, Gross			689,784
Accumulated impairment loss			(10,591)
Balance	$ 636,571	679,193
Goodwill Reallocation Due to Apergy		(40,394)
Acquired Goodwill	33,183	0
Goodwill, Written off Related to Sale of Business Unit	0	0
Foreign currency translation	13,231	(2,228)
Balance	682,985	636,571
Fueling Solutions Segment [Member]
Goodwill [Roll Forward]
Goodwill, Gross			770,619
Accumulated impairment loss			0
Balance	873,381	770,619
Goodwill Reallocation Due to Apergy		0
Acquired Goodwill	47,339	97,898
Goodwill, Written off Related to Sale of Business Unit	0	0
Foreign currency translation	20,253	4,864
Balance	940,973	873,381
Imaging & Identification Segment [Member]
Goodwill [Roll Forward]
Goodwill, Gross			944,468
Accumulated impairment loss			0
Balance	977,069	944,468
Goodwill Reallocation Due to Apergy		40,394
Acquired Goodwill	103,723	0
Goodwill, Written off Related to Sale of Business Unit	0	0
Foreign currency translation	36,797	(7,793)
Balance	1,117,589	977,069
Pumps & Process Solutions Segment [Member]
Goodwill [Roll Forward]
Goodwill, Gross			796,952
Accumulated impairment loss			(59,970)
Balance	750,627	736,982
Goodwill Reallocation Due to Apergy		0
Acquired Goodwill	21,560	21,614
Goodwill, Written off Related to Sale of Business Unit	0	(4,739)
Foreign currency translation	14,093	(3,230)
Balance	786,280	750,627
Refrigeration and Food Equipment Segment [Member]
Goodwill [Roll Forward]
Goodwill, Gross			546,066
Accumulated impairment loss			$ 0
Balance	545,699	546,066
Goodwill Reallocation Due to Apergy		0
Acquired Goodwill	0	0
Goodwill, Written off Related to Sale of Business Unit	(2,597)	0
Foreign currency translation	1,613	(367)
Balance	$ 544,715	$ 545,699
Minimum [Member]
Goodwill [Roll Forward]
Fair value discount rate, percent	8.00%
Maximum [Member]
Goodwill [Roll Forward]
Fair value discount rate, percent	9.00%

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-SubTopic 210
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