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Pension Benefits (Narrative) (Details) (USD $)
12 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2009
Minimum number of years in investment horizon for plan assets 10    
Plan investments in shares of our common stock $ 0 $ 0  
Pension Benefits [Member]
     
Curtailment charges 0 349,000 331,000
Estimated employer contributions to pension plans in next fiscal year $ 1,000,000