Postretirement Benefits (Components Of Net Periodic Benefit Cost) (Details) (Postretirement Benefits [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2014		Mar. 31, 2013
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 8		$ 8		$ 24		$ 24
Interest cost	33		28		97		84
Amortization of unrecognized net (gain) loss	(6)	[1]	(6)	[1]	(20)	[1]	(16)	[1]
Amortization of prior service asset	(1)	[1]	(1)	[1]	(3)	[1]	(3)	[1]
Net periodic benefit (income) cost	$ 34		$ 29		$ 98		$ 89

[1] Included in the computation of net periodic benefit income/cost. See Notes 8 and 9 for additional information.