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Long-Term Debt (Tables)
9 Months Ended
Mar. 31, 2015
Debt Disclosure [Abstract]  
Summary Of Long-Term Debt
    March 31,   June 30,
(Amounts in thousands)   2015   2014
7 3/8% Senior Notes due March 2021 $ 350,000 $ 350,000
Unamortized premium on long-term debt   5,833   6,432
Total long-term debt $ 355,833 $ 356,432