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Commitments and Contingencies (Tables)
12 Months Ended
Jun. 30, 2011
Commitments and Contingencies [Abstract]  
Future minimum rental payments under operating leases
         
2012
  $   9,043  
2013
    8,298  
2014
    7,551  
2015
    7,415  
2016
    7,359  
Thereafter
    6,683  
         
Total
  $ 46,349