Other (Income) Expense, Net (Schedule of Other (Income) Expense, Net) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Equity interest in the earnings of the JV	$ (4,675)	$ (2,386)
Net gain on sales of assets and businesses	(1,538)	(588)
Rent income	(343)	(350)
Other components of net periodic pension and other postretirement benefit, excluding service cost and interest expense	(2,901)	(3,650)
Other	(142)	(166)
Other (income) expense, net	(10,674)	(8,123)
Gain (Loss) on Investments in Deferred Compensation Program [Member]
Net gain on investments in deferred compensation program	$ (1,075)	$ (983)