Pension Benefits (Components Of Net Periodic Benefit Income) (Details) - Defined Benefit Pension Plans [Member] - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 965	$ 1,246	$ 1,453
Expected return on plan assets	(1,779)	(2,302)	(2,487)
Amortization of unrecognized net loss	692	572	447
Net periodic benefit income	$ (122)	$ (484)	$ (587)