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COMMITMENTS AND CONTINGENCIES - Sales And Lease Back Transaction - Additional Information (Details)
$ in Millions
3 Months Ended 12 Months Ended
Jun. 30, 2014
agreement
Jun. 30, 2017
USD ($)
Jun. 30, 2016
USD ($)
Jun. 30, 2015
USD ($)
Sales Leaseback Agreement [Member]        
Commitment And Contingency [Line Items]        
Rent expense | $   $ 1.5 $ 2.6 $ 2.5
Third-party finance company        
Commitment And Contingency [Line Items]        
Number of sale leaseback agreements | agreement 6      
Agreement lease term   P36M