Other (Income) Expense, Net (Schedule of Other (Income) Expense, Net) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Equity interest in the earnings of the JV	$ (10,155)	$ (4,573)
Rent income	(82)	(88)
Gain on non-recurring matter related to a previous acquisition	(4,803)
Other components of net periodic pension and other postretirement benefit, excluding service cost and interest expense	(2,919)	(2,485)
Other	(71)	(53)
Other (income) expense, net	(20,639)	(8,390)
Gain on Investments in Deferred Compensation Program [Member]
Net gain on investments in deferred compensation program	$ (2,609)	$ (1,191)