XML 64 R29.htm IDEA: XBRL DOCUMENT v2.4.0.8
Intangible Assets - Summary of Amortization Expenses of Purchased Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Change in Accounting Estimate [Line Items]        
Amortization of purchased intangible assets $ 141 $ 227 $ 281 $ 664
Cost of net revenues [Member]
        
Change in Accounting Estimate [Line Items]        
Amortization of purchased intangible assets 83 289 167 1,250
General and administrative expenses [Member]
        
Change in Accounting Estimate [Line Items]        
Amortization of purchased intangible assets 141 227 281 664
Total amortization expense [Member]
        
Change in Accounting Estimate [Line Items]        
Amortization of purchased intangible assets $ 224 $ 516 $ 448 $ 1,914