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Nature of Operations and Summary of Significant Accounting Policies - Goodwill (Details) $ in Thousands	6 Months Ended
	Jul. 03, 2021 USD ($)
Goodwill [Roll Forward]
Gross Balance, Beginning Balance	$ 437,262
Accumulated impairment losses	(85,509)
Net Balance, Beginning Balance	351,753
Currency translation	(1,679)
Acquisition	197
Total 2021 adjustments	(1,482)
Gross Balance, Ending Balance	435,780
Accumulated impairment losses	(85,509)
Net Balance, Ending Balance	350,271
Operating Segment | Flow Control
Goodwill [Roll Forward]
Gross Balance, Beginning Balance	101,437
Accumulated impairment losses	0
Net Balance, Beginning Balance	101,437
Currency translation	(858)
Acquisition	197
Total 2021 adjustments	(661)
Gross Balance, Ending Balance	100,776
Accumulated impairment losses	0
Net Balance, Ending Balance	100,776
Operating Segment | Industrial Processing
Goodwill [Roll Forward]
Gross Balance, Beginning Balance	215,881
Accumulated impairment losses	(85,509)
Net Balance, Beginning Balance	130,372
Currency translation	432
Acquisition	0
Total 2021 adjustments	432
Gross Balance, Ending Balance	216,313
Accumulated impairment losses	(85,509)
Net Balance, Ending Balance	130,804
Operating Segment | Material Handling
Goodwill [Roll Forward]
Gross Balance, Beginning Balance	119,944
Accumulated impairment losses	0
Net Balance, Beginning Balance	119,944
Currency translation	(1,253)
Acquisition	0
Total 2021 adjustments	(1,253)
Gross Balance, Ending Balance	118,691
Accumulated impairment losses	0
Net Balance, Ending Balance	$ 118,691

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