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Investment In Joint Venture (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
1 Months Ended 12 Months Ended
Jun. 30, 2011
Feb. 28, 2011
Oct. 31, 2005
Jun. 30, 2011
Jun. 30, 2009
Dec. 15, 2009
Investment In Joint Venture            
Percentage of equity interest in the joint venture     50.00% 0.00%    
Joint venture ownership percentage by partner         50.00%  
Period to complete sale, in months         26  
Aggregate purchase price for interest in joint venture         $ 20  
Number of installment payments receivable         3  
Installment payments due date, first         December 15, 2009  
Current portion of joint venture sale received 4.0 6.0     10.0  
Percentage of equity interest sold   15.00%     50.00%  
Royalty guaranteed 4.0 6.0   4.0 29.0  
Royalty payments period         3  
Future royalty payments, payable         10  
Cash resulting from joint venture transactions           0
Investments         2.8  
Remaining percentage of equity interest 10.00% 10.00%   10.00% 25.00%  
Loss on deconsolidation         13.1  
Write off of remaining investment       $ 2.1