Segment Information (Schedule Of Revenues From External Customers By Geographical Areas) (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2018 |
Apr. 01, 2017 |
|
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Net Sales to External Customers | $ 291,998 | $ 255,323 |
| Greater China [Member] | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Net Sales to External Customers | 157,808 | 131,738 |
| Southeast Asia Pacific [Member] | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Net Sales to External Customers | 56,228 | 50,406 |
| North Asia [Member] | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Net Sales to External Customers | 18,084 | 12,956 |
| Asia Pacific [Member] | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Net Sales to External Customers | 232,120 | 195,100 |
| Americas And Europe [Member] | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Net Sales to External Customers | $ 59,878 | $ 60,223 |