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, 2024	Jun. 30, 2023	Jun. 30, 2022
Numerator:
Net income	$ 1,020,951	$ 897,556	$ 779,437
Denominator:
Basic weighted-average common shares outstanding (in shares)	147,021	146,765	146,066
Effect of dilutive securities:
Stock options and restricted stock units (in shares)	529	690	977
Diluted weighted average shares (in shares)	147,550	147,455	147,043
Basic earnings per share (in dollars per share)	$ 6.94	$ 6.12	$ 5.34
Diluted earnings per share (in dollars per share)	$ 6.92	$ 6.09	$ 5.30