Accrued Liabilities (Tables)

6 Months Ended

Mar. 31, 2025

Accrued Liabilities, Current [Abstract]

Accrued Liabilities

	March 31, 2025		September 30, 2024
Salaries and other member benefits	$	105,065	$	151,921
Product warranties and related liabilities		20,946		18,844
Interest payable		12,193		12,163
Accrued retirement benefits		2,799		2,888
Net current contract liabilities		47,419		56,791
Taxes, other than income		15,755		15,884
Other		38,108		34,151
	$	242,285	$	292,642

Changes in Accrued Product Warranties and Related Liabilities

Changes in accrued product warranties and related liabilities were as follows:

	Three Months Ended March 31,						Six Months Ended March 31,
	2025			2024			2025			2024
Beginning of period	$	19,008		$	21,802		$	18,844		$	18,162
Additions, net of recoveries		5,841			4,653			9,346			9,959
Reductions for settlement		(4,030	)		(6,579	)		(7,044	)		(8,406	)
Foreign currency exchange rate changes		127			(76	)		(200	)		85
End of period	$	20,946		$	19,800		$	20,946		$	19,800