Pension Benefits (Schedule Of Change In Plan Assets) (Details) - Pension Benefits [Member] - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets at beginning of year	$ 35,682	$ 37,146
Actual return on plan assets	3,458	794
Employer contributions	0	0
Benefits paid	(2,371)	(2,258)
Fair value of plan assets at end of year	$ 36,769	$ 35,682