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Reconciliation of Operating Income (Loss) from Segments to Consolidated By Reportable Segments (Parenthetical) (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 29, 2021
Mar. 30, 2020
Segment Reporting Information [Line Items]    
Amortization of definite-lived intangibles $ 1,384 $ 1,383
Printed Circuit Board and RF&S Components    
Segment Reporting Information [Line Items]    
Amortization of definite-lived intangibles $ 1,384 $ 1,383