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Basis of Presentation and General Information (Narrative) (Details)
3 Months Ended 9 Months Ended
Sep. 29, 2023
USD ($)
Sep. 30, 2022
USD ($)
Sep. 29, 2023
USD ($)
Segment
Sep. 30, 2022
USD ($)
Dec. 30, 2022
USD ($)
Dec. 31, 2021
USD ($)
Basis Of Presentation And General Information [Line Items]            
Number of operating segments | Segment     3      
Number of reportable segments | Segment     3      
Number of reporting units | Segment     3      
Revenue recognized as a result of change in contract liability $ 1,500,000 $ 2,000,000 $ 12,100,000 $ 12,300,000    
Deferred commissions         $ 1,500,000 $ 1,600,000
Commissions expense 300,000 200,000 900,000 900,000    
Impairment loss recognized to capitalization of deferred commission 0 0 0 0    
Segment revenue $ 75,856,000 $ 72,033,000 $ 224,187,000 $ 223,625,000    
Minimum [Member]            
Basis Of Presentation And General Information [Line Items]            
Business relationship agreement period     6 months      
Maximum [Member]            
Basis Of Presentation And General Information [Line Items]            
Business relationship agreement period     12 months      
Customer contract period     12 months