Postretirement Benefits (Components Of Net Periodic Benefit Cost) (Details) - Postretirement Benefits [Member] - USD ($) $ in Thousands		3 Months Ended
		Sep. 30, 2015	Sep. 30, 2014
Defined Benefit Plan Disclosure [Line Items]
Service cost		$ 7	$ 8
Interest cost		30	27
Amortization of unrecognized net (gain) loss	[1]	(4)	(7)
Amortization of prior service asset	[1]	(1)	(1)
Net periodic benefit (income) cost		$ 32	$ 27

[1] Included in the computation of net periodic benefit income/cost. See Notes 9 and 10 for additional information.