Retirement Plans - Assumptions (Details)	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Net Periodic Benefit Costs:
Discount rate (as a percent)	1.30%	1.95%	1.90%
Rate of compensation increase (as a percent)	1.75%	1.75%	1.75%
Expected long-term return on assets (as a percent)	1.50%	1.50%	1.00%
Benefit Obligation:
Discount rate (as a percent)	1.30%	1.95%
Rate of compensation increase (as a percent)	1.75%	1.75%