SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Licensing Arrangements (Details) - License agreements	12 Months Ended
	Jun. 30, 2018
Finite-lived intangible assets
License agreement, remaining or renewal term	5 years
Minimum
Finite-lived intangible assets
License initial term	5 years
License agreement, remaining or renewal term	5 years
Maximum
Finite-lived intangible assets
License initial term	10 years
License agreement, remaining or renewal term	18 years