Annual report pursuant to Section 13 and 15(d)

Segment Information (Schedule Of Revenues From External Customers By Geographical Areas) (Details)

v3.19.3.a.u2
Segment Information (Schedule Of Revenues From External Customers By Geographical Areas) (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 28, 2019
Sep. 28, 2019
Jun. 29, 2019
Mar. 30, 2019
Dec. 29, 2018
Sep. 29, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net Sales to External Customers $ 271,298 $ 260,598 $ 256,016 $ 272,990 $ 299,023 $ 296,767 $ 301,460 $ 291,998 $ 1,060,902 $ 1,189,248 $ 1,047,265
Greater China [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net Sales to External Customers                 535,995 654,394 546,777
Southeast Asia Pacific [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net Sales to External Customers                 220,085 225,469 205,289
North Asia [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net Sales to External Customers                 96,187 76,720 58,376
Asia Pacific [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net Sales to External Customers                 852,267 956,583 810,442
Americas And Europe [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net Sales to External Customers                 $ 208,635 $ 232,665 $ 236,823