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Comprehensive Income
3 Months Ended
Sep. 30, 2011
Comprehensive Income [Abstract] 
Comprehensive Income
6. Comprehensive Income
     Total comprehensive income is summarized as follows (in thousands):
                 
    Three Months Ended  
    September 30,  
    2011     2010  
Net income
  $ 80,517     $ 75,104  
Translation adjustments
    (58,724 )     70,255  
Unrealized investment (loss) gain
    (1,124 )     49  
 
           
Total comprehensive income
  $ 20,669     $ 145,408