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Segment Information - Additional Information (Detail)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 28, 2020
plant
Dec. 28, 2020
USD ($)
Segment
Country
Dec. 30, 2019
USD ($)
Dec. 31, 2018
USD ($)
Segment Reporting Information [Line Items]        
Number of reportable segments   2    
Number of countries the parent company markets and sells its products | Country   53    
Percentage of total net sales, if exceed, the company does not conduct business   10.00%    
Corporate        
Segment Reporting Information [Line Items]        
Business combination, acquisition and divestitures related costs | $   $ 273 $ 6,902 $ 13,279
Printed Circuit Board | Domestic PCB, RF Sub-System, and RF Component Fabrication Plants        
Segment Reporting Information [Line Items]        
Number of operating segments   15    
Printed Circuit Board | PCB Fabrication Plants | CHINA        
Segment Reporting Information [Line Items]        
Number of operating segments   5    
Printed Circuit Board | PCB Fabrication Plants | Canada        
Segment Reporting Information [Line Items]        
Number of operating segments   1    
RF&S Components | Domestic RF Component Plants        
Segment Reporting Information [Line Items]        
Number of reportable segments   1    
RF&S Components | RF Component Plant | CHINA        
Segment Reporting Information [Line Items]        
Number of reportable segments   1    
E-M Solutions | Custom Electronic Assembly Plants | CHINA        
Segment Reporting Information [Line Items]        
Number of operating segments   3    
Number of plants closed | plant 2