Equity-Accounted Investments And Other Long-Term Assets (Summary Of Other Long-Term Asset) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Jun. 30, 2023
Schedule Of Equity And Held To Maturity Investments [Line Items]
Total equity investments	$ 76,297	$ 76,297
Policy holder assets under investment contracts (Note 7)	216	257
Reinsurance assets under insurance contracts (Note 7)	1,450	1,040
Total other long-term assets	77,963	77,594	[1]
Mobikwik [Member]
Schedule Of Equity And Held To Maturity Investments [Line Items]
Total equity investments	$ 76,297	$ 76,297
Equity-accounted investments, ownership percentage	10.00%	10.00%
Cell C [Member]
Schedule Of Equity And Held To Maturity Investments [Line Items]
Total equity investments	$ 0	$ 0
Equity-accounted investments, ownership percentage	5.00%	5.00%
CPS [Member]
Schedule Of Equity And Held To Maturity Investments [Line Items]
Total equity investments	$ 0	$ 0
Equity-accounted investments, ownership percentage	87.50%	87.50%

[1] (A) – Derived from audited financial statements