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Long-Term Debt (Aggregate Maturities Of Long-Term Debt) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Jun. 30, 2011
Long-Term Debt [Abstract]    
2012 $ 7,500  
2013 7,500  
2014 307,500  
2015 9,375  
2016 295,625  
Principal amount of long-term debt 627,500 446,250
Less unamortized discount (30,403) (36,313)
Total long-term debt $ 597,097 $ 409,937