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Debt (Tables)
12 Months Ended
Jun. 30, 2011
Debt (Tables) [Abstract]  
Outstanding borrowings
         
June 30,   2010  
 
7.98% Private placement debt, paid at maturity in November 2010
  $ 25,000  
Revolving credit facility
    50,000  
 
Total outstanding debt
    75,000  
Less: Payable within one year
    75,000  
 
Long-term portion of outstanding debt
  $ 0