v2.4.0.6
Employee Benefit Plans (Schedule Of Share Based Compensation Expenses) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share-based compensation expense included in operating expenses $ 13,513 $ 9,441 $ 8,366
Cost Of Sales [Member]
     
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share-based compensation expense included in operating expenses 1,438 746 580
Research And Development [Member]
     
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share-based compensation expense included in operating expenses 4,598 2,695 1,850
Selling, General And Administrative [Member]
     
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share-based compensation expense included in operating expenses $ 7,477 $ 6,000 $ 5,936