FAIR VALUE OF FINANCIAL INSTRUMENTS - Additional Information (Details) - USD ($) $ in Thousands |
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2013 |
Jun. 30, 2012 |
|---|---|---|---|---|
| Fair Value Disclosures [Abstract] | ||||
| Deposits of cash outside the United States | $ 397,000 | |||
| Cash and cash equivalents | $ 446,401 | $ 347,097 | $ 227,826 | $ 122,060 |