Pension Benefits (Schedule Of Change In Benefit Obligation) (Details) - Defined Benefit Pension Plans [Member] - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation at beginning of year	$ 31,043	$ 37,439
Interest cost	1,344	935	$ 965
Actuarial gain	(2,047)	(5,130)
Benefits paid	(2,388)	(2,201)
Benefit obligation at end of year	$ 27,952	$ 31,043	$ 37,439