Pension and Other Postretirement Benefits - Amounts Related to Defined Pension Plans Recognized in Accumulated Other Comprehensive (Loss) Income (Details) - Pension plans contribution [Member] - USD ($)	Jun. 30, 2023	Jun. 30, 2022
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract]
Unrecognized Net Actuarial Losses	$ 284,054,000	$ 274,416,000
Unrecognized Net Prior Service Costs	1,772,000	1,822,000
Unrecognized Transition Obligations	76,000	158,000
Total	285,902,000	$ 276,396,000
Defined Benefit Plan, Expected Amortization of Transition Asset (Obligation), Next Fiscal Year	$ 100,000