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Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2011
Fair Value Measurements 
Assets And Liabilities Measured At Fair Value On A Recurring Basis
     As of September 30, 2011        
     Carrying
Value
    Fair
Value
    Measurement
Approach
    As of December 31, 2010  
         Level      Valuation
Technique
    Carrying
Value
     Fair
Value
 
(In thousands)                             (Audited)  

Current Assets

              

Money market funds

   $ 39,617      $ 39,617        1         (a   $ 196,058       $ 196,058   

Foreign currency exchange contracts

     —          —          2         (a     12         12   

Long-Term Assets

              

Treasury locks

     —          —               872         872   

Other Long-Term Liabilities

              

Treasury locks

     (41,669     (41,669     2         (a     —           —