Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net Income	$ 27,628	$ 22,761
Defined Benefit Pension and Postretirement Benefit Plans:
Amortization of loss, before tax	131	100
Amortization of prior service asset, before tax	(1)	(1)
Total Other Comprehensive Income, Before Tax	130	99
Tax Attributes of Items in Other Comprehensive Income:
Amortization of loss, tax	(49)	(36)
Amortization of prior service asset, tax	0	0
Total Tax Expense	(49)	(36)
Other Comprehensive Income, Net of Tax	81	63
Comprehensive Income	$ 27,709	$ 22,824