SEGMENT INFORMATION - Reportable Operating Segment Salons (Details)	Dec. 31, 2023 salon franchisee	Jun. 30, 2023 salon franchisee
Franchisor Disclosure [Line Items]
Number of salons | franchisee	4,709	4,863
Franchise
Franchisor Disclosure [Line Items]
Number of salons	4,651	4,795
Salons as a percent of total Company-owned and Franchise salons	98.80%	98.60%
Franchise | North American
Franchisor Disclosure [Line Items]
Number of salons	4,551	4,693
Franchise | International
Franchisor Disclosure [Line Items]
Number of salons	100	102
Franchise | Supercuts
Franchisor Disclosure [Line Items]
Number of salons	2,022	2,082
Franchise | SmartStyle/Cost Cutters in Walmart Stores
Franchisor Disclosure [Line Items]
Number of salons	1,351	1,388
Franchise | Portfolio Brands
Franchisor Disclosure [Line Items]
Number of salons	1,178	1,223
Company-owned
Franchisor Disclosure [Line Items]
Number of salons	58	68
Salons as a percent of total Company-owned and Franchise salons	1.20%	1.40%
Company-owned | Supercuts
Franchisor Disclosure [Line Items]
Number of salons	6	7
Company-owned | SmartStyle/Cost Cutters in Walmart Stores
Franchisor Disclosure [Line Items]
Number of salons	44	48
Company-owned | Portfolio Brands
Franchisor Disclosure [Line Items]
Number of salons	8	13