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Long-Term Debt (Aggregate Maturities Of Long-Term Debt) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Jun. 30, 2012
Long-Term Debt [Abstract]    
2013 $ 7,500  
2014 307,500  
2015 9,375  
2016 400,625  
Principal amount of long-term debt 725,000 563,750
Less unamortized discount (17,964) (24,289)
Less unamortized debt issuance costs (4,299) (4,654)
Total long-term debt $ 702,737 $ 534,807