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Restructuring Costs - Additional Information (Details) ft² in Thousands, $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 28, 2019 USD ($) Employee	Jan. 02, 2021 USD ($) Employee	Dec. 28, 2019 USD ($)	Dec. 29, 2018 USD ($)	Dec. 30, 2017 USD ($) ft² Employee
Restructuring Plan 2020
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)		$ 1,118
Restructuring Plan 2020 | Employee severance
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)		1,118
Restructuring Plan 2019
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)			$ 192
Restructuring Plan 2019 | Canada
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated related to restructuring | Employee	6
Restructuring Plan 2019 | Employee severance
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)	$ 192		$ 192
Restructuring Plan 2017
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)				$ 1,717
Manufacturing facility square footage (in sqft) | ft²					160
Restructuring Plan 2017 | United States
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated related to restructuring | Employee					4
Restructuring Plan 2017 | Sweden
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated related to restructuring | Employee					6
Restructuring Plan 2017 | Employee severance
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)				(55)	$ 203
Restructuring Plan 2017 | Facility-related closing costs
Restructuring Cost and Reserve [Line Items]
Expected total costs					$ 1,920
Restructuring Plan 2017 | Relocation Of Machinery And Equipment And Administrative Offices
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)				1,318
Restructuring Plan 2017 | Employee Retention, Facility Closing, And Other Closure Costs
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)				$ 454
Flow Control | Restructuring Plan 2020 | Employee severance
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)		$ 659
Number of positions eliminated related to restructuring | Employee		34
Industrial Processing | Restructuring Plan 2020
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated related to restructuring | Employee		21
Industrial Processing | Restructuring Plan 2020 | Employee severance
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)		$ 277
Number of positions eliminated related to restructuring | Employee		26
Material Handling Systems | Restructuring Plan 2020 | Employee severance
Restructuring Cost and Reserve [Line Items]
Restructuring provision (reversal)		$ 182
Number of positions eliminated related to restructuring | Employee		4

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