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Stock-Based Compensation (Additional Information) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Capitalized stock based compensation	$ 0.0	$ 0.0
Stock Incentive Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock available for future issuance	1,665,195
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of options (in years)				10 years
Vesting Period (in years)				4 years
Total intrinsic value of options exercised	$ 10.6	10.0	$ 1.1
Tax benefit from options exercised	0.3	2.5		$ 0.3
Unrecognized compensation costs related to non-vested awards	$ 0.1
Unrecognized compensation costs related to non-vested awards expected to be recognized, years	2 months 12 days
Fair value of stock options	$ 1.3	1.9	2.1
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period (in years)	3 years			4 years
Unrecognized compensation costs related to non-vested awards	$ 14.8
Unrecognized compensation costs related to non-vested awards expected to be recognized, years	1 year 8 months 12 days
Fair value of units vested	$ 15.9	$ 13.0	$ 9.4
Weighted-average grant date fair value	$ 89.65	$ 44.24	$ 39.9
Restricted Stock Units \| Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period (in years)	1 year
Performance Based Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of options (in years)	3 years
Unrecognized compensation costs related to non-vested awards	$ 24.3
Unrecognized compensation costs related to non-vested awards expected to be recognized, years	1 year 7 months 6 days
Fair value of units vested	$ 2.8	$ 4.1	$ 3.4
Weighted-average grant date fair value	$ 89.74	$ 50.02	$ 40.43