v3.26.1
Equity-Accounted Investments And Other Long-Term Assets (Narrative-Other Long-term Assets) (Details)
R in Billions
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Aug. 02, 2017
USD ($)
shares
Aug. 02, 2017
ZAR (R)
shares
Jun. 30, 2017
USD ($)
Aug. 31, 2016
USD ($)
Jun. 30, 2025
USD ($)
Mar. 31, 2025
USD ($)
Jun. 30, 2026
USD ($)
shares
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
shares
Jun. 30, 2019
USD ($)
Sep. 30, 2022
Schedule of Equity Method Investments [Line Items]                      
Equity-accounted investments         $ 199,000   $ 295,000 $ 199,000      
Total equity investments         0   450,000 0      
Maximum borrowing capacity             82,778,000        
Proceeds from disposal of equity-accounted investments             0 0 $ 3,508,000    
Loss on disposal of equity-accounted investment (Note 9)             (584,000) (161,000) 0    
Change in fair value of equity securities (Note 3)             $ 2,593,000 (59,828,000) $ 0    
Mobikwik [Member]                      
Schedule of Equity Method Investments [Line Items]                      
Aggregate purchase price of shares in cash     $ 10,600,000 $ 15,000,000.0           $ 1,100,000  
Equity ownership percentage                 10.00%    
Investment amount owned           $ 22,100,000     $ 76,300,000    
Investment shares owned | shares             6,215,620   6,215,620    
Proceeds from disposal of equity-accounted investments               16,400,000      
Loss on disposal of equity-accounted investment (Note 9)         (5,600,000)     (59,800,000)      
Change in fair value of equity securities (Note 3)           $ (54,200,000)          
Cell C [Member]                      
Schedule of Equity Method Investments [Line Items]                      
Total equity investments         $ 0   $ 0 $ 0      
Equity ownership percentage         5.00%     5.00%     15.00%
Compulsorily Convertible Cumulative Preference Shares | shares             75,000,000        
Investment amount owned         $ 0.0     $ 0.0      
Investment shares owned | shares             75,000,000        
Cell C [Member] | Common Class A [Member]                      
Schedule of Equity Method Investments [Line Items]                      
Aggregate purchase price of shares in cash $ 151,000,000.0 R 2.0                  
Investment shares owned | shares 75,000,000 75,000,000         75,000,000        
CPS [Member]                      
Schedule of Equity Method Investments [Line Items]                      
Total equity investments         $ 0   $ 0 $ 0      
Equity ownership percentage         87.50%   87.50% 87.50%      
Cowdi [Member]                      
Schedule of Equity Method Investments [Line Items]                      
Total equity investments             $ 300,000        
Maximum borrowing capacity             750,000        
Loan utilized             200,000        
Loan balance             $ 200,000        
Equity ownership percentage             10.00%        
Maximum [Member] | Mobikwik [Member]                      
Schedule of Equity Method Investments [Line Items]                      
Equity-accounted investments       $ 40,000,000.0              
Minimum [Member] | Mobikwik [Member]                      
Schedule of Equity Method Investments [Line Items]                      
Equity investment acquisition period       24 months