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Condensed Consolidated Statements Of Operations And Comprehensive Income (Loss) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Condensed Consolidated Statements Of Operations And Comprehensive Income (Loss) [Abstract]    
Net revenues $ 100,150 $ 61,784
Cost of net revenues 79,162 55,790
Gross profit 20,988 5,994
Operating costs and expenses:    
Research and development 15,829 15,559
Sales and marketing 7,678 7,384
General and administrative 5,534 4,593
Goodwill and intangible assets impairment losses 29,337   
Amortization of purchased intangible assets 437 528
Total operating costs and expenses 58,815 28,064
Operating loss (37,827) (22,070)
Other income:    
Interest income, net 83 158
Other income, net 7 122
Loss before income taxes (37,737) (21,790)
Income tax expense 184 298
Net loss (37,921) (22,088)
Per share data:    
Basic $ (1.17) $ (0.69)
Diluted $ (1.17) $ (0.69)
Weighted average shares used in computation of basic and diluted net loss per share:    
Basic 32,296 31,900
Diluted 32,296 31,900
Comprehensive loss $ (37,897) $ (22,165)