Annual report pursuant to Section 13 and 15(d)

Segment Information (Schedule Of Long-Lived Assets By Geographic Region) (Details)

v3.8.0.1
Segment Information (Schedule Of Long-Lived Assets By Geographic Region) (Details) - USD ($)
$ in Thousands
Dec. 30, 2017
Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long-lived assets $ 176,251 $ 174,489
Assets 519,269 470,642
Greater China [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long-lived assets 98,641 94,537
Assets 289,463 255,214
Southeast Asia Pacific [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long-lived assets 14,603 13,204
Assets 49,444 45,896
North Asia [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long-lived assets 1,908 1,884
Assets 13,234 9,646
Asia Pacific [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long-lived assets 115,152 109,625
Assets 352,141 310,756
Americas And Europe [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long-lived assets 61,099 64,864
Assets $ 167,128 $ 159,886