SEGMENT INFORMATION - Reportable Operating Segment Salons (Details) - salon	Sep. 30, 2021	Jun. 30, 2021
Franchisor Disclosure [Line Items]
Number of salons	5,843	5,917
Equity ownership interest locations
Franchisor Disclosure [Line Items]
Number of salons	77	78
Franchise
Franchisor Disclosure [Line Items]
Number of salons	5,587	5,563
Salons as a percent of total Company-owned and Franchise salons	96.90%	95.30%
Franchise | North American
Franchisor Disclosure [Line Items]
Number of salons	5,436	5,409
Franchise | International
Franchisor Disclosure [Line Items]
Number of salons	151	154
Franchise | SmartStyle/Cost Cutters in Walmart Stores
Franchisor Disclosure [Line Items]
Number of salons	1,676	1,666
Franchise | Supercuts
Franchisor Disclosure [Line Items]
Number of salons	2,369	2,386
Franchise | Portfolio Brands
Franchisor Disclosure [Line Items]
Number of salons	1,391	1,357
Company-owned
Franchisor Disclosure [Line Items]
Number of salons	179	276
Salons as a percent of total Company-owned and Franchise salons	3.10%	4.70%
Company-owned | SmartStyle/Cost Cutters in Walmart Stores
Franchisor Disclosure [Line Items]
Number of salons	67	91
Company-owned | Supercuts
Franchisor Disclosure [Line Items]
Number of salons	24	35
Company-owned | Portfolio Brands
Franchisor Disclosure [Line Items]
Number of salons	88	150