Pension and Other Postretirement Benefits - Components of Net Periodic Pension (Income) Cost (Details) - Pension plans contribution [Member] - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Net periodic pension income
Service cost	$ 1,117	$ 1,685	$ 1,796
Interest cost	22,532	23,188	27,320
Expected Return on Plans' Assets	(51,928)	(53,653)	(53,943)
Amortization of transition obligation	94	94	88
Amortization of prior service cost	13	34	50
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment	(2)	(7)	(115)
Special termination benefit charge	277	473	288
Settlement Loss	205	3,190	(51)
Recognition of actuarial losses	11,702	13,606	10,359
Net Periodic Benefit (Income) Cost	$ (15,990)	$ (12,336)	$ (14,208)