Stock-Based Compensation (Additional Information) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total intrinsic value of options exercised	$ 10.0	$ 1.1	$ 6.9
Tax benefit from options exercised	2.5	0.3	1.8
Share-based Payment Arrangement, Amount Capitalized	0.0	0.0
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs related to non-vested awards	$ 0.4
Unrecognized compensation costs related to non-vested awards expected to be recognized, years	1 year 3 months 18 days
Fair value of stock options	$ 1.9	$ 2.1	$ 4.7
Stock Incentive Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of options (in years)			10 years
Vesting Period (in years)			4 years
Weighted average estimated grant date fair values, for options granted at market price, per share			$ 14.72
Number of options granted	0	0
Common stock available for future issuance	2,106,199
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	$ 14.5
Unrecognized compensation costs related to non-vested awards expected to be recognized, years	1 year 7 months 6 days
Fair value of units vested	$ 13.0	$ 9.4	$ 7.9
Weighted-average grant date fair value	$ 44.24	$ 39.90	$ 35.57
Restricted Stock Units \| Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period (in years)	1 year
Performance Stock Units
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	$ 15.5
Unrecognized compensation costs related to non-vested awards expected to be recognized, years	1 year 7 months 6 days
Fair value of units vested	$ 4.1	$ 3.4	$ 2.6
Weighted-average grant date fair value	$ 50.02	$ 40.43	$ 33.84

Aggregate number of common shares reserved for future issuance.

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