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
Earnings Per Share [Abstract]
Net income	$ 381,816	$ 366,646	$ 362,916
Common share information:
Weighted average shares outstanding for basic earnings per share	72,867	72,918	73,324
Dilutive effect of stock options, restricted stock units, and performance units	158	178	162
Weighted average shares outstanding for diluted earnings per share	73,025	73,096	73,486
Basic earnings per share	$ 5.24	$ 5.03	$ 4.95
Diluted earnings per share	$ 5.23	$ 5.02	$ 4.94
Antidilutive stock options and restricted stock excluded from computation of earnings per share	33	10	7