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Long-Term Debt (Aggregate Maturities Of Long-Term Debt) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Jun. 30, 2012
Long-Term Debt [Abstract]    
2013 $ 7,500  
2014 307,500  
2015 7,500  
2016 15,000  
2017 362,375  
Principal amount of long-term debt 699,875 563,750
Less unamortized discount (21,149) (24,289)
Total long-term debt $ 678,726 $ 539,461