Earnings Per Share Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net Income	$ 51,366	$ 46,088
Common share information:
Weighted average shares outstanding for basic earnings per share	80,545	82,195
Dilutive effect of stock options and restricted stock	190	394
Weighted average shares outstanding for diluted earnings per share	80,735	82,589
Basic earnings per share	$ 0.64	$ 0.56
Diluted earnings per share	$ 0.64	$ 0.56
Antidilutive stock options and restricted stock excluded from computation of earnings per share	26	78