Earnings Per Share (Schedule Of Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Numerator:
Net income	$ 110,125	$ 87,823	$ 205,777	$ 240,672
Denominator:
Basic weighted-average common shares outstanding	142,898	141,714	142,688	141,266
Effect of dilutive securities:
Stock options and restricted stock units	1,087	1,010	1,207	1,097
Diluted weighted average shares	143,985	142,724	143,895	142,363
Basic earnings per share	$ 0.77	$ 0.62	$ 1.44	$ 1.70
Diluted earnings per share	$ 0.76	$ 0.62	$ 1.43	$ 1.69