Pension and Other Postretirement Benefits - Funded Status of Pension Plans and Amounts Recognized in the Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Change in Plan Assets
Fair Value of Plans' Assets, Beginning of Year	$ 695,965
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Other Adjustments	(7)	$ (5)
Fair Value of Plans' Assets, End of Year	650,180	695,965
Amounts Recognized in Balance Sheet
Long-term prepaid pension benefit (Note 14)	70,567	66,433
Pension plans contribution [Member]
Change in Benefit Obligation
Benefit Obligation, Beginning of Year	741,009	968,725
Service Cost	963	1,117	$ 1,685
Interest Cost	32,235	22,532	23,188
Participant Contributions	486	479
Actuarial Losses	(32,622)	(170,055)
Defined Benefit Plan, Benefit Obligation, Benefits Paid	52,625	53,149
Benefits and expenses paid	(52,625)	(53,149)
Currency Translation Adjustment	7,372	(27,074)
Plan Amendments	(50)	(66)
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement	(1,260)	(1,805)
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment	(3)	(3)
Benefit Obligation, End of Year	695,911	741,009	968,725
Change in Plan Assets
Fair Value of Plans' Assets, Beginning of Year	695,965	890,104
Actual Return on Plans' Assets	(4,063)	(133,374)
Company Contributions	7,842	8,170
Currency translation adjustments	3,842	(14,455)
Fair Value of Plans' Assets, End of Year	650,180	695,965	$ 890,104
Funded Status of Plans	(45,731)	(45,044)
Defined Benefit Plan, Plan Assets, Contributions by Plan Participant	486	479
Defined Benefit Plan, Plan Assets, Payment for Settlement	1,260	1,805
Amounts Recognized in Balance Sheet
Long-term prepaid pension benefit (Note 14)	70,567	66,433
Short-term Accrued Benefit Obligation	(7,562)	(6,406)
Accrued Pension Benefits	(108,736)	(105,071)
Net Amount Recognized	(45,731)	(45,044)
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Other Change	$ 406	$ 308