Pension Benefits (Schedule Of Change In Benefit Obligation) (Details) - Pension Benefits [Member] - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation at beginning of year	$ 42,042	$ 41,233
Interest cost	1,685	1,612	$ 1,754
Actuarial loss	2,683	1,414
Benefits paid	(2,258)	(2,217)
Benefit obligation at end of year	$ 44,152	$ 42,042	$ 41,233