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Fair Value Measurements (Tables) | 3 Months Ended
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Sep. 30, 2014
Fair Value Disclosures [Abstract] |
Schedule of the fair values of the senior notes |
​ | As of | ​ | ​ | September 30, 2014 | ​ | ​ | June 30, 2014 | ​
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​ | Fair values | ​ | ​ | ​ | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ |  | ​ | ​
​ | Term B Loan | ​ | ​ | ​ | $ | 285,659 |  | ​ | ​ | ​ | ​ | $ | 289,638 |  | ​ | ​
​ |  | ​ | ​ |  |  | ​ |  | ​ | ​ |  |  | ​ |  | ​

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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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