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Segment Information (Schedule Of Property, Plant, And Equipment, Net, By Geographic Location) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 30, 2013
Mar. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]    
Property and equipment, net $ 100,623 $ 66,978
United States [Member]
   
Revenues from External Customers and Long-Lived Assets [Line Items]    
Property and equipment, net 100,343 66,530
United Kingdom [Member]
   
Revenues from External Customers and Long-Lived Assets [Line Items]    
Property and equipment, net 23 20
China [Member]
   
Revenues from External Customers and Long-Lived Assets [Line Items]    
Property and equipment, net 137 158
Hong Kong [Member]
   
Revenues from External Customers and Long-Lived Assets [Line Items]    
Property and equipment, net 5 3
Japan [Member]
   
Revenues from External Customers and Long-Lived Assets [Line Items]    
Property and equipment, net 25 167
South Korea [Member]
   
Revenues from External Customers and Long-Lived Assets [Line Items]    
Property and equipment, net 6 6
Taiwan [Member]
   
Revenues from External Customers and Long-Lived Assets [Line Items]    
Property and equipment, net 70 83
Other Asia [Member]
   
Revenues from External Customers and Long-Lived Assets [Line Items]    
Property and equipment, net $ 14 $ 11