BUSINESS DESCRIPTION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Business Description (Details)	3 Months Ended	12 Months Ended
	Sep. 30, 2017 salon segment	Jun. 30, 2018 segment	Jun. 30, 2017 segment	Oct. 31, 2017 salon
Variable interest entities
Number of reportable segments | segment	2	2	4
Facility Closing | North America
Variable interest entities
Number of stores	858			858
Facility Closing | UNITED KINGDOM
Variable interest entities
Number of stores	250			250