Supplemental Balance Sheet Information (Tabular)

3 Months Ended

9 Months Ended

Jun. 30, 2020

Jun. 30, 2020

Balance Sheet Related Disclosures [Abstract]

Schedule Of Selected Supplemental Balance Sheet Information [Table Text Block]

Selected supplemental asset information is presented below.

	June 30,		September 30,
	2020		2019
	(in millions)
Inventories:
Purchased components and raw material	$	97.8	$	95.2
Work in process	32.9		43.7
Finished goods	49.6		52.5
	$	180.3	$	191.4
Other current assets:
Prepaid expenses	$	11.1	$	9.6
Non-trade receivables	12.2		6.3
Maintenance and repair supplies and tooling	3.9		4.2
Income taxes	0.2		4.7
Other	0.7		1.2
	$	28.1	$	26.0
Property, plant and equipment:
Land	$	6.5	$	5.2
Buildings	77.0		68.9
Machinery and equipment	396.2		362.9
Construction in progress	54.5		48.0
	534.2		485.0
Accumulated depreciation	(289.3)		(267.9)
	$	244.9	$	217.1
Other noncurrent assets:
Operating lease right of use asset	$	26.3	$	—
Maintenance and repair supplies and tooling	17.5		16.4
Workers compensation reimbursement receivable	3.1		3.1
Note receivable	1.8		1.8
Other	2.5		2.6
	$	51.2	$	23.9

Schedule of Accrued Liabilities

Selected supplemental liability information is presented below.

	June 30,		September 30,
	2020		2019
	(in millions)
Other current liabilities:
Compensation and benefits	$	29.1	$	28.5
Customer rebates	8.5		8.7
Taxes other than income taxes	3.6		3.3
Warranty	6.7		6.5
Income taxes	4.4		0.6
Environmental	1.2		1.2
Interest	1.1		7.3
Restructuring	1.9		1.7
Walter Energy Accrual	—		22.0
Operating lease liabilities	4.2		—
Deferred revenues	5.4		4.7
Refund liability	4.8		3.3
Accrued settlements	10.1		0.2
Other	3.8		5.0
	$	84.8	$	93.0
Other noncurrent liabilities:
Operating lease liabilities	$	23.8	$	—
Warranty	8.5		10.7
Transition tax	4.1		5.8
Unrecognized income tax benefits	3.5		3.3
Asset retirement obligation	3.3		3.6
Pension	1.8		5.0
Workers compensation	1.2		1.9
Other	3.4		2.9
	$	49.6	$	33.2

Schedule of Goodwill

The following table summarizes information concerning our goodwill balance for the nine months ended June 30, 2020, in millions.

Balance at beginning of year	$	95.7
Purchase accounting adjustments	0.3
Change in foreign currency exchange rates	0.4
Balance as of June 30, 2020	$	96.4