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FAIR VALUE MEASUREMENTS (Tables)
3 Months Ended
Jun. 30, 2012
FAIR VALUE MEASUREMENTS  
Segregation of all assets measured at fair value on a recurring basis

 

 

 
  June 30, 2012   Quoted prices
in active markets
for identical
assets (level 1)
  Significant other
observable inputs
(level 2)
  Significant
unobservable
inputs
(level 3)
 

Money market funds

  $ 150,586   $ 150,586   $   $  

Bank-time deposits

  $ 117,196   $ 117,196   $   $