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FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands | Jun. 30, 2015 | Jun. 30, 2014
--- | --- | ---
Assets: |  |
Marketable equity securities | $ 6,273 | $ 9,608
Recurring basis | Carrying Amount |  |
Assets: |  |
Marketable equity securities | 6,273 |
Liabilities: |  |
Debt | 399,110 |
Amount of equity component of convertible notes | 77,000 |
Recurring basis | Fair Value |  |
Assets: |  |
Marketable equity securities | 6,273 |
Total assets | 6,273 |
Liabilities: |  |
Debt | 379,664 |
Total liabilities | 379,664 |
Recurring basis | Level 1 |  |
Assets: |  |
Marketable equity securities | 6,273 |
Total assets | 6,273 |
Liabilities: |  |
Debt | 379,664 |
Total liabilities | $ 379,664 |

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