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Fair Value Measurements (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Jun. 30, 2013
Carrying values | 9.25% senior notes
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt $ 300,000 $ 300,000
Less unamortized discount (2,105) (2,402)
Long-term debt, carrying value 297,895 297,598
Carrying values | Term Notes/Loan | Mayflower
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 24,000 24,000
Long-term debt, carrying value 24,000 24,000
Carrying values | Term Notes/Loan | BFI
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 10,000 10,000
Less unamortized discount (39) (126)
Long-term debt, carrying value 9,961 9,874
Fair values | 9.25% senior notes
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value 318,000 322,500
Fair values | Term Notes/Loan | Mayflower
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value 22,701 26,968
Fair values | Term Notes/Loan | BFI
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, fair value $ 10,293 $ 10,644