SEGMENT INFORMATION - Schedule of Reportable Operating Segment Salons (Details)	Sep. 30, 2024 salon franchisee	Jun. 30, 2024 salon franchisee
Franchisor Disclosure [Line Items]
Number of salons | franchisee	4,359	4,408
Franchise
Franchisor Disclosure [Line Items]
Number of salons	4,350	4,391
Salons as a percent of total Company-owned and Franchise salons	99.80%	99.60%
Franchise | North American
Franchisor Disclosure [Line Items]
Number of salons	4,254	4,295
Franchise | International
Franchisor Disclosure [Line Items]
Number of salons	96	96
Franchise | Supercuts
Franchisor Disclosure [Line Items]
Number of salons	1,932	1,946
Franchise | SmartStyle/Cost Cutters in Walmart stores
Franchisor Disclosure [Line Items]
Number of salons	1,216	1,232
Franchise | Portfolio Brands
Franchisor Disclosure [Line Items]
Number of salons	1,106	1,117
Company-Owned
Franchisor Disclosure [Line Items]
Number of salons	9	17
Salons as a percent of total Company-owned and Franchise salons	0.20%	0.40%
Company-Owned | Supercuts
Franchisor Disclosure [Line Items]
Number of salons	3	3
Company-Owned | SmartStyle/Cost Cutters in Walmart stores
Franchisor Disclosure [Line Items]
Number of salons	1	8
Company-Owned | Portfolio Brands
Franchisor Disclosure [Line Items]
Number of salons	5	6