v3.25.2
BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Gain on Sale of Subsidiary (Details)
R in Millions, $ in Millions
3 Months Ended 6 Months Ended
Mar. 06, 2025
USD ($)
Mar. 06, 2025
ZAR (R)
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2025
ZAR (R)
Mar. 06, 2025
ZAR (R)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                
Taxes     $ 131.3 $ 77.4 $ 250.2 $ 168.7    
Disposal Group, Disposed of by Sale, Not Discontinued Operations | South Africa Fiber                
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                
Proceeds received at closing $ 137.7             R 2,500.0
Net assets at closing (84.1)              
Total gain on sale included in Other operating expenses 53.6       53.6      
Taxes $ 20.8 R 377.9            
Taxes payable     $ 7.4   $ 7.4   R 131.5