Postretirement Benefits (Components Of Net Periodic Benefit (Income) Cost) (Details) - Postretirement Benefits [Member] - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Service cost		$ 6	$ 8	$ 13	$ 16
Interest cost		17	27	47	54
Amortization of unrecognized net (gain) loss	[1]	(8)	(7)	(12)	(14)
Amortization of prior service credit	[1]	(31)	(1)	(32)	(2)
Net periodic benefit (income) cost		$ (16)	$ 27	$ 16	$ 54

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