Employee Retirement Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
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	$ 12.7	$ 11.9	$ 9.6
Australia
Defined Benefit Plan Disclosure [Line Items]
Percentage of contribution by the company to the retirement plans	10.50%
Total contribution by the company to the employee retirement plans	$ 13.0	11.8	10.7
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	$ 3.6	$ 3.1	$ 2.5