v2.3.0.15
Cost Of Revenue (Schedule Of Cost Of Revenue) (Details) (USD $)
In Thousands
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Cost Of Revenue [Line Items]    
Cost of revenue$ 268,312$ 204,833$ 736,830$ 572,619
Personnel Expenses [Member]
    
Cost Of Revenue [Line Items]    
Cost of revenue184,673129,219496,546365,530
Operational Expenses [Member]
    
Cost Of Revenue [Line Items]    
Cost of revenue70,60562,068200,693167,897
Depreciation And Amortization [Member]
    
Cost Of Revenue [Line Items]    
Cost of revenue$ 13,034$ 13,546$ 39,591$ 39,192