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FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) - USD ($)
$ in Thousands
Jun. 30, 2015
Jun. 30, 2014
Fair Value, Measurements, Recurring | Other long-term liabilities | Level 2 | Interest Rate Swap    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Interest rate swap agreements $ 11,728 $ 7,774