Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.1
Segment Information (Schedule Of Revenues From External Customers By Geographical Areas) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 28, 2020
Mar. 30, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net Sales to External Customers $ 266,619 $ 272,990
Greater China [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net Sales to External Customers 131,432 144,153
Southeast Asia Pacific [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net Sales to External Customers 56,922 54,515
North Asia [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net Sales to External Customers 27,251 22,228
Asia Pacific [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net Sales to External Customers 215,605 220,896
Americas And Europe [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net Sales to External Customers $ 51,014 $ 52,094