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Fair Value Measurement (Tables)
3 Months Ended
Mar. 31, 2015
Fair Value of Financial Instruments [Abstract]  
Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

 

(In thousands) Fair Value Measurements at March 31, 2015
Quoted Prices in   Significant Other     Significant  
Active Markets for   Observable     Unobservable  
Identical Assets   Inputs     Inputs  
    Total     (Level 1)     (Level 2)     (Level 3)  
Assets:                                
Short-term investments   $ 155,938     $     $ 155,938     $  
Liabilities:                                
Foreign currency forward exchange contracts accounted for using hedge
accounting
  $ 981     $     $ 981     $  
                                 
Foreign currency forward exchange contracts not accounted for using hedge
accounting
    1,241             1,241        
                                 
    $ 2,222     $     $ 2,222     $  

 

Fair Value Measurements at December 31, 2014    
Quoted Prices in   Significant Other     Significant  
Active Markets for   Observable     Unobservable  
Identical Assets   Inputs     Inputs  
    Total     (Level 1)     (Level 2)     (Level 3)  
Assets:                                
Short-term investments   $ 190,152     $     $ 190,152     $  
                                 
Liabilities:                                
Foreign currency forward exchange contracts not accounted for using hedge
accounting
  $ 355     $     $ 355     $