Accrued Liabilities (Changes in Accrued Product Warranties and Related Liabilities) (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Mar. 31, 2023		Mar. 31, 2022	Mar. 31, 2023		Mar. 31, 2022
Accrued Liabilities Current [Abstract]
Beginning of period	$ 49,526		$ 13,203	$ 40,042	[1]	$ 17,481
Additions, net of recoveries	3,413		984	20,423		222
Reductions for settlement	(6,501)		(1,190)	(14,203)		(4,669)
Foreign currency exchange rate changes	54		(13)	230		(50)
End of period	$ 46,492	[1]	$ 12,984	$ 46,492	[1]	$ 12,984

[1] Product warranties and related liabilities includes estimates related to product liabilities expected to be fully recoverable from insurance.