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Fair Value Measurements (Tables)
3 Months Ended
Sep. 30, 2015
Fair Value Measurements [Abstract]  
Fair Value, by Balance Sheet Grouping
    September 30,   June 30,
(Amounts in thousands)   2015   2015
7 3/8% Senior Notes due March 2021 (Level 2) $ 214,375 $ 284,375
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis
(Amounts in thousands)   September 30, 2015       June 30, 2015
    Asset Liability     Asset     Liability
Level 2 $ 1,095 $ 207 $   767 $ 757
Total $ 1,095 $ 207 $   767 $ 757