Accrued Liabilities (Changes in Accrued Product Warranties and Related Liabilities) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Accrued Liabilities, Current [Abstract]
Beginning of period	$ 18,162	$ 40,042
Additions, net of recoveries	5,306	17,010
Reductions for settlement	(1,827)	(7,702)
Foreign currency exchange rate changes	161	176
End of period	$ 21,802	$ 49,526