Equity-Accounted Investments And Other Long-Term Assets (Summary Of Components Of Equity Securities Without Readily Determinable Fair Value And Held To Maturity Investments) (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Jun. 30, 2024
Schedule Of Equity And Held To Maturity Investments [Line Items]
Cost basis		$ 26,993
Unrealized holding gains		49,304
Unrealized holding losses		0
Carrying value		76,297
Mobikwik [Member]
Schedule Of Equity And Held To Maturity Investments [Line Items]
Cost basis		26,993
Unrealized holding gains		49,304
Unrealized holding losses		0
Carrying value		76,297
CPS [Member]
Schedule Of Equity And Held To Maturity Investments [Line Items]
Cost basis	$ 0	0
Unrealized holding gains	0	0
Unrealized holding losses	0	0
Carrying value	0	0
Cedar Cellular [Member]
Schedule Of Equity And Held To Maturity Investments [Line Items]
Cost basis	0	0
Unrealized holding gains	0	0
Unrealized holding losses	0	0
Carrying value	$ 0	$ 0