Earnings Per Share (Schedule Of Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Numerator:
Net income	$ 404,592	$ 315,588	$ 342,284
Denominator:
Basic weighted-average common shares outstanding	143,111	142,764	141,360
Effect of dilutive securities:
Stock options and restricted stock units	1,373	1,223	1,093
Diluted weighted average shares	144,484	143,987	142,453
Basic earnings per share	$ 2.83	$ 2.21	$ 2.42
Diluted earnings per share	$ 2.80	$ 2.19	$ 2.40