Contingencies - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2024	Sep. 30, 2023
Loss Contingencies [Line Items]
Standard product warranty length, minimum	1 year
Standard product warranty length, maximum	2 years
Limited product warranty length (up to)	10 years
Accrued amounts for litigation and other contingent liabilities	$ 8,805	$ 9,404
Performance Bonds
Loss Contingencies [Line Items]
Letters of credit secured using cash collateral	34,900
Outstanding performance bonds	$ 265,900