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Long-Term Debt (Tables)
3 Months Ended
Sep. 30, 2015
LONG-TERM DEBT [Abstract]  
Schedule of Debt
    September 30,   June 30,
(Amounts in thousands)   2015   2015
7 3/8% Senior Notes due March 2021 $ 350,000 $ 350,000
Unamortized premium on long-term debt   5,422   5,634
Total long-term debt $ 355,422 $ 355,634