Segment Information (Schedule Of Revenues From External Customers By Geographical Areas) (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Apr. 01, 2017 |
Apr. 02, 2016 |
|
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Net Sales to External Customers | $ 255,323 | $ 240,449 |
| Greater China [Member] | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Net Sales to External Customers | 131,738 | 116,998 |
| Southeast Asia Pacific [Member] | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Net Sales to External Customers | 50,406 | 48,861 |
| North Asia [Member] | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Net Sales to External Customers | 12,956 | 10,560 |
| Asia Pacific [Member] | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Net Sales to External Customers | 195,100 | 176,419 |
| Americas And Europe [Member] | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Net Sales to External Customers | $ 60,223 | $ 64,030 |