Supplemental Balance Sheet Information

6 Months Ended

Mar. 31, 2025

Balance Sheet Related Disclosures [Abstract]

Selected supplemental asset information is presented below:


	March 31,		September 30,
	2025		2024

	(in millions)
Inventories, net:
Purchased components and raw materials	$	164.3	$	163.6
Work in process, net	67.0		65.8
Finished goods, net	74.2		72.3
Inventories, net	$	305.5	$	301.7

Other current assets:
Prepaid expenses	$	20.5	$	17.2
Non-trade receivables	3.1		3.4
Maintenance and repair supplies and tooling	3.8		5.4
Goods to be returned	3.2		4.2
Income taxes	0.8		0.8
Workers' compensation reimbursement receivable	2.4		2.4
Other current assets	6.9		4.5
Total other current assets	$	40.7	$	37.9

Property, plant and equipment:
Land	$	6.5	$	6.5
Buildings	130.1		126.6
Machinery and equipment	562.7		550.4
Construction in progress	52.1		45.2
Total property, plant and equipment	751.4		728.7
Accumulated depreciation	(426.6)		(409.9)
Property, plant and equipment, net	$	324.8	$	318.8

Other noncurrent assets:
Operating lease right-of-use assets	$	26.6	$	26.9
Maintenance and repair supplies and tooling	19.2		20.3
Workers' compensation reimbursement receivable	4.1		4.1
Pension asset	14.4		13.5
Note receivable	1.8		1.8
Deferred financing fees	1.1		1.3
Other noncurrent assets	0.4		0.4
Total other noncurrent assets	$	67.6	$	68.3

Selected supplemental liability information is presented below:


	March 31,		September 30,
	2025		2024

	(in millions)
Other current liabilities:
Compensation and benefits	$	34.0	$	58.3
Customer rebates	21.7		16.9
Income taxes payable	5.1		5.6
Warranty accrual	12.3		13.3
Deferred revenue	6.9		7.1
Returned goods accrual	5.0		7.3
Taxes other than income taxes	4.2		3.5
Operating lease liabilities	5.9		5.5
Workers' compensation accrual	4.4		4.6
Restructuring liabilities	2.1		3.4
Interest payable	5.3		5.3
Other current liabilities	9.3		16.5
Total other current liabilities	$	116.2	$	147.3

Other noncurrent liabilities:
Operating lease liabilities	$	21.9	$	22.5
Warranty accrual	8.6		10.3
Transition tax liability	—		1.7
Uncertain tax position liability	3.6		3.0
NMTC liability	3.9		3.9
Workers' compensation accrual	5.8		5.8
Asset retirement obligation	4.2		4.2
Deferred revenue	5.5		5.7
Deferred development grant	2.1		2.5
Other noncurrent liabilities	3.2		4.1
Total other noncurrent liabilities	$	58.8	$	63.7

Goodwill

Goodwill is tested for impairment at the reporting unit level (operating segment or one level below an operating segment) on an annual basis on September 1 of each fiscal year or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying value.

The following table summarizes information concerning our goodwill, all of which is within our Water Management Solutions segment, during the six months ended March 31, 2025, in millions:


Balance at September 30, 2024:
Goodwill	$	821.1
Accumulated impairment	(740.4)
Goodwill, net	80.7
Activity during the six months ended March 31, 2025:
Change in foreign currency exchange rates	0.2
Balance at March 31, 2025	$	80.9