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Certain Balance Sheet Components Property, Plant, and Equipment, Net (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Property, Plant and Equipment [Line Items]      
Machinery and equipment $ 269,611 $ 265,113  
Computers and purchased software 74,885 63,077  
Buildings, furniture, and improvements 140,064 146,661  
Land 26,126 35,968  
Construction in progress, including purchased equipment 20,687 20,531  
Total cost 531,373 531,350  
Accumulated depreciation (268,703) (232,108)  
Property, plant, and equipment, net $ 262,670 $ 299,242 $ 318,217