Stock-Based Compensation (Stock-Settled Stock Appreciation Rights Grant Details) (Details) (Stock Settled Stock Appreciation Rights SARS [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Stock Settled Stock Appreciation Rights SARS [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
SSSARs granted (in rights)	146	108
Weighted average grant date fair value per award	$ 11.84	$ 9.04
Risk-free interest rate	0.75%	0.33%
Dividend yield	1.97%	2.09%
Volatility factor of the expected market price of our common stock	22.35%	23.23%
Weighted average expected life in years	3 years 1 month 13 days	2 years 8 months 1 day
Weighted average estimated forfeiture rate	3.00%	2.00%