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Disaggregation of Revenue by Principal End Markets with the Reportable Segment (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 28, 2020
Dec. 30, 2019
Dec. 31, 2018
Disaggregation Of Revenue [Line Items]      
Total Revenue $ 2,105,322 $ 2,133,210 $ 2,237,742
Printed Circuit Board      
Disaggregation Of Revenue [Line Items]      
Total Revenue 1,905,243 1,844,562 1,959,090
RF&S Components      
Disaggregation Of Revenue [Line Items]      
Total Revenue 44,656 62,315 52,705
E-M Solutions      
Disaggregation Of Revenue [Line Items]      
Total Revenue 155,423 226,333 225,947
Aerospace and Defense      
Disaggregation Of Revenue [Line Items]      
Total Revenue 745,885 697,599 607,584
Aerospace and Defense | Printed Circuit Board      
Disaggregation Of Revenue [Line Items]      
Total Revenue 745,041 696,279 606,573
Aerospace and Defense | RF&S Components      
Disaggregation Of Revenue [Line Items]      
Total Revenue 189 777 153
Aerospace and Defense | E-M Solutions      
Disaggregation Of Revenue [Line Items]      
Total Revenue 655 543 858
Automotive      
Disaggregation Of Revenue [Line Items]      
Total Revenue 318,855 404,105 475,471
Automotive | Printed Circuit Board      
Disaggregation Of Revenue [Line Items]      
Total Revenue 270,240 302,101 388,643
Automotive | E-M Solutions      
Disaggregation Of Revenue [Line Items]      
Total Revenue 48,615 102,004 86,828
Cellular Phone      
Disaggregation Of Revenue [Line Items]      
Total Revenue 1,341 1,224  
Cellular Phone | Printed Circuit Board      
Disaggregation Of Revenue [Line Items]      
Total Revenue 1,341 1,224  
Computing/Storage/Peripherals      
Disaggregation Of Revenue [Line Items]      
Total Revenue 259,036 237,491 283,130
Computing/Storage/Peripherals | Printed Circuit Board      
Disaggregation Of Revenue [Line Items]      
Total Revenue 258,032 235,615 280,497
Computing/Storage/Peripherals | RF&S Components      
Disaggregation Of Revenue [Line Items]      
Total Revenue 834 1,588 939
Computing/Storage/Peripherals | E-M Solutions      
Disaggregation Of Revenue [Line Items]      
Total Revenue 170 288 1,694
Medical/Industrial/Instrumentation      
Disaggregation Of Revenue [Line Items]      
Total Revenue 387,695 364,985 387,201
Medical/Industrial/Instrumentation | Printed Circuit Board      
Disaggregation Of Revenue [Line Items]      
Total Revenue 374,237 331,551 345,078
Medical/Industrial/Instrumentation | RF&S Components      
Disaggregation Of Revenue [Line Items]      
Total Revenue 2,967 3,752 2,271
Medical/Industrial/Instrumentation | E-M Solutions      
Disaggregation Of Revenue [Line Items]      
Total Revenue 10,491 29,682 39,852
Networking/Communications      
Disaggregation Of Revenue [Line Items]      
Total Revenue 370,584 391,074 460,004
Networking/Communications | Printed Circuit Board      
Disaggregation Of Revenue [Line Items]      
Total Revenue 234,211 253,306 322,128
Networking/Communications | RF&S Components      
Disaggregation Of Revenue [Line Items]      
Total Revenue 39,160 43,333 40,982
Networking/Communications | E-M Solutions      
Disaggregation Of Revenue [Line Items]      
Total Revenue 97,213 94,435 96,894
Other      
Disaggregation Of Revenue [Line Items]      
Total Revenue 21,926 36,732 24,352
Other | Printed Circuit Board      
Disaggregation Of Revenue [Line Items]      
Total Revenue 22,141 24,486 16,171
Other | RF&S Components      
Disaggregation Of Revenue [Line Items]      
Total Revenue 1,506 12,865 8,360
Other | E-M Solutions      
Disaggregation Of Revenue [Line Items]      
Total Revenue $ (1,721) $ (619) $ (179)