Earnings Per Share - Weighted Average (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	9 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Earnings Per Share [Abstract]
Net income	$ 111,860	$ 115,350	$ 341,975	$ 285,267
Weighted-average number of basic shares outstanding during the period (in shares)	22,279	22,292	22,332	22,407
Dilutive effect of equity awards (in shares)	104	186	153	186
Weighted-average number of diluted shares outstanding during the period (in shares)	22,383	22,478	22,485	22,593
Basic earnings per share (in dollars per share)	$ 5.02	$ 5.17	$ 15.31	$ 12.73
Diluted earnings per share (in dollars per share)	$ 5.00	$ 5.13	$ 15.21	$ 12.63

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References

+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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+ Details