Equity - Reclassifications out of accumulated other comprehensive income (loss) in shareholders' equity (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other income, net	$ 30,801	$ 78,455
Total before tax	875,186	820,435
Tax benefit	(176,658)	(169,363)
Net income	698,528	651,072
Income (Expense) Reclassified from Accumulated Other Comprehensive (Loss) | Amortization of prior service cost and initial net obligation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other income, net	(827)	(302)
Income (Expense) Reclassified from Accumulated Other Comprehensive (Loss) | Recognized actuarial loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other income, net	(3,804)	(792)
Income (Expense) Reclassified from Accumulated Other Comprehensive (Loss) | Retirement benefit plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total before tax	(4,631)	(1,094)
Tax benefit	1,180	276
Net income	$ (3,451)	$ (818)