Employee Benefit Plans - Actuarial Assumptions - Tabular Disclosure (Details)	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Significant actuarial assumptions
Discount rate for interest cost (as a percent)	4.30%	2.20%	2.20%
Expected rate of return on plan assets (as a percent)	4.40%	4.40%	4.90%
Discount rate for year-end benefit obligation (as a percent)	4.60%	2.90%	2.80%