SEGMENT INFORMATION: Salon Locations (Details)	Dec. 31, 2016 salon
Franchisor Disclosure [Line Items]
Number of stores	9,207
Company-owned
Franchisor Disclosure [Line Items]
Number of stores	6,658
Franchised
Franchisor Disclosure [Line Items]
Number of stores	2,549
Operating Segments | North American Value
Franchisor Disclosure [Line Items]
Number of stores	8,250
Operating Segments | North American Value | Company-owned
Franchisor Disclosure [Line Items]
Number of stores	5,710
Operating Segments | North American Value | Franchised
Franchisor Disclosure [Line Items]
Number of stores	2,540
Operating Segments | North American Premium
Franchisor Disclosure [Line Items]
Number of stores	637
Operating Segments | North American Premium | Company-owned
Franchisor Disclosure [Line Items]
Number of stores	637
Operating Segments | North American Premium | Franchised
Franchisor Disclosure [Line Items]
Number of stores	0
Operating Segments | International
Franchisor Disclosure [Line Items]
Number of stores	320
Operating Segments | International | Company-owned
Franchisor Disclosure [Line Items]
Number of stores	311
Operating Segments | International | Franchised
Franchisor Disclosure [Line Items]
Number of stores	9