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Fair Value Measurements (Tables) | 9 Months Ended
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Mar. 31, 2014
Fair Value Disclosures [Abstract] |
Schedule of the fair values of the senior notes |
​ | As of | ​ | ​ | March 31, 2014 | ​ | ​ | June 30, 2013 | ​
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​ | Carrying values | ​ | ​ | ​ | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ |  | ​ | ​
​ | 9.25% senior notes due July 1, 2018 | ​ | ​ | ​ | $ | 300,000 |  | ​ | ​ | ​ | ​ | $ | 300,000 |  | ​ | ​
​ | Less unamortized original issue discount | ​ | ​ | ​ | ​ | (2,105 | ) | ​ | ​ | ​ | ​ | ​ | (2,402 | ) | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | 297,895 |  | ​ | ​ | ​ | ​ | ​ | 297,598 |  | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ |  | ​ | ​
​ | Term loan payable to Mayflower due December 31, 2016 | ​ | ​ | ​ | ​ | 24,000 |  | ​ | ​ | ​ | ​ | ​ | 24,000 |  | ​ | ​
​ | Term loan payable to BFI due August 1, 2014 | ​ | ​ | ​ | ​ | 10,000 |  | ​ | ​ | ​ | ​ | ​ | 10,000 |  | ​ | ​
​ | Less unamortized discount | ​ | ​ | ​ | ​ | (39 | ) | ​ | ​ | ​ | ​ | ​ | (126 | ) | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | 9,961 |  | ​ | ​ | ​ | ​ | ​ | 9,874 |  | ​ | ​
​ | Fair values | ​ | ​ | ​ | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ |  | ​ | ​
​ | 9.25% senior notes due July 1, 2018 | ​ | ​ | ​ | $ | 318,000 |  | ​ | ​ | ​ | ​ | $ | 322,500 |  | ​ | ​
​ | Term loan payable to Mayflower due December 31, 2016 | ​ | ​ | ​ | ​ | 27,701 |  | ​ | ​ | ​ | ​ | ​ | 26,968 |  | ​ | ​
​ | Term loan payable to BFI due August 1, 2014 | ​ | ​ | ​ | ​ | 10,293 |  | ​ | ​ | ​ | ​ | ​ | 10,644 |  | ​ | ​
​ | ​ | ​ | ​ |  |  | ​ |  | ​ | ​ |  |  | ​ |  | ​

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- Definition Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements. + References No definition available. + Details
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