Pension Benefits (Components Of Net Periodic Benefit Income) (Details) - Pension Benefits [Member] - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017		Jun. 30, 2016		Jun. 30, 2015
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 1,457		$ 1,685		$ 1,612
Expected return on plan assets	(2,416)		(2,520)		(2,632)
Amortization of unrecognized net loss	715	[1]	539	[1]	429
Net periodic benefit income	$ (244)		$ (296)		$ (591)

[1] Included in the computation of net periodic benefit income/cost. See Note 12 for additional information.