Pension and Other Postretirement Benefits - Amounts Related to Other Postretirement Benefit Plans Recognized in Accumulated Other Comprehensive (Loss) Income (Details) - Other postretirement benefit plans [Member] - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 30, 2022
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Unrecognized Net Actuarial Losses	$ 2,023	$ 2,657
Unrecognized Net Prior Service Credits	(1,378)	(1,649)
Total	$ 645	$ 1,008