Earnings Per Share - Calculation of Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Net income	$ 89,125	$ 88,109
Weighted-average basic shares outstanding	23,420	23,560
Dilutive effect of RSUs after application of treasury stock method	258	284
Weighted-average number of diluted shares outstanding during the period	23,678	23,844
Basic earnings per share	$ 3.81	$ 3.74
Diluted earnings per share	$ 3.76	$ 3.70