Contingencies - Warranty (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Standard product warranty length, minimum	1 year
Standard product warranty length, maximum	2 years
Limited product warranty length (up to)	10 years
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance at beginning of period	$ 13,046	$ 13,926
Accruals for warranties issued	1,904	1,603
Warranty expenditures	(2,602)	(2,370)
Balance at end of period	$ 12,348	$ 13,159