BUSINESS DESCRIPTION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Advertising, Interest Income and Other, Income Taxes and Foreign Currency Translation (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Advertising Expense
Advertising fund contributions from franchisees		$ 32,573	$ 22,023
Advertising fund contributions from company-owned salons		154	897
Corporate funded advertising costs		671	7,015
Total advertising costs		33,398	29,935
Advertising funds, assets		10,500	9,900
Advertising funds, liabilities		10,500	9,900
Interest and Other Income [Abstract]
Proceeds from sale of company headquarters	$ 15,000
Income Taxes
Deferred tax assets, valuation allowance		201,731	192,522
Valuation allowance		4,100	34,400
Foreign Currency Translation
Foreign currency gain (loss)		$ (600)	$ 300