XML 62 R52.htm IDEA: XBRL DOCUMENT v3.22.2.2
Fair Value Of Financial Instruments (Narrative) (Details)
3 Months Ended 12 Months Ended
Sep. 30, 2022
USD ($)
shares
Sep. 30, 2021
USD ($)
Jun. 30, 2022
USD ($)
Derivatives, Fair Value [Line Items]      
Transfers into or out of Level 3 $ 0 $ 0  
Movement in carrying value of assets measured on a recurring basis 0 $ 0  
Nonrecurring [Member]      
Derivatives, Fair Value [Line Items]      
Liabilities measured at fair value $ 0    
Foreign Exchange Contracts [Member]      
Derivatives, Fair Value [Line Items]      
Outstanding foreign exchange contracts 0   0
Cell C [Member]      
Derivatives, Fair Value [Line Items]      
Investment amount owned $ 0.0   $ 0.0
Equity method investment, percentage of ownership interest 0.00%    
Cell C [Member] | Marketability Discount [Member]      
Derivatives, Fair Value [Line Items]      
Investment fair value measurement inputs 20.00%   10.00%
Cell C [Member] | Minority Discount [Member]      
Derivatives, Fair Value [Line Items]      
Investment fair value measurement inputs 30.00%   15.00%
Cell C [Member] | Shareholding Percentage [Member]      
Derivatives, Fair Value [Line Items]      
Investment fair value measurement inputs 5.00%   15.00%
Cell C [Member] | Class A [Member]      
Derivatives, Fair Value [Line Items]      
Investment shares owned | shares 75,000,000