Accrued Liabilities (Tables)

6 Months Ended

Mar. 31, 2024

Accrued Liabilities, Current [Abstract]

Accrued Liabilities

	March 31, 2024		September 30, 2023
Salaries and other member benefits	$	98,019	$	146,713
Product warranties and related liabilities		19,800		18,162
Interest payable		12,199		13,611
Accrued retirement benefits		2,844		2,822
Net current contract liabilities		48,821		33,748
Taxes, other than income		18,981		13,436
Other		36,280		34,124
	$	236,944	$	262,616

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,
	2024			2023			2024			2023
Beginning of period	$	21,802		$	49,526		$	18,162		$	40,042
Additions, net of recoveries		4,653			3,413			9,959			20,423
Reductions for settlement		(6,579	)		(6,501	)		(8,406	)		(14,203	)
Foreign currency exchange rate changes		(76	)		54			85			230
End of period	$	19,800		$	46,492		$	19,800		$	46,492