Pension and Other Postretirement Benefits - Amounts Related to Defined Pension Plans Recognized in Accumulated Other Comprehensive (Loss) Income (Details) - Pension plans contribution [Member] - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract]
Unrecognized Net Actuarial Losses	$ 274,416	$ 279,628
Unrecognized Net Prior Service Costs	1,822	2,001
Unrecognized Transition Obligations	158	277
Total	$ 276,396	$ 281,906