Supplemental Statement of Cash Flows Information (Schedule of Supplemental Statement of Cash Flows Information) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Supplemental Cash Flow Information [Abstract]
Interest paid, net of amounts capitalized			$ 31,116	$ 23,509
Income taxes paid			60,334	25,625
Income tax refunds received			1,459	7,240
Non-cash activities:
Purchases of property, plant and equipment on account			2,612	4,386
Common shares issued from treasury to settle benefit obligations	$ 19,307	$ 17,168	$ 19,467	$ 17,168