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, 2022	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Supplemental Cash Flow Information [Abstract]
Interest paid, net of amounts capitalized			$ 23,509	$ 25,617
Income taxes paid			25,625	33,293
Income tax refunds received			7,240	13,788
Non-cash activities:
Purchases of property, plant and equipment on account			4,386	1,993
Common shares issued from treasury to settle benefit obligations	$ 17,168	$ 14,900	$ 17,168	$ 14,900