Employee Retirement Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Australia
Defined Benefit Plan Disclosure [Line Items]
Percentage of contribution by the company to the retirement plans	11.00%
Total contribution by the company to the employee retirement plans	$ 14.9	$ 13.0	$ 11.8
Singapore
Defined Benefit Plan Disclosure [Line Items]
Percentage of contribution by the company to the retirement plans	17.00%
Total contribution by the company to the employee retirement plans	$ 3.9	3.6	3.1
United States
Defined Benefit Plan Disclosure [Line Items]
Percentage of contribution by the company to the retirement plans	4.00%
Total contribution by the company to the employee retirement plans	$ 13.8	$ 12.7	$ 11.9