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Supplemental Balance Sheet | 12 Months Ended
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Sep. 30, 2021
Statement of Financial Position [Abstract] |
Supplemental Balance Sheet - Schedules of Assets | Selected supplemental asset information is presented below.
| September 30,
| 2021 |  | 2020
| (in millions)
Inventories, net: |  |  |
Purchased components and raw materials | $ | 100.9 |  |  | $ | 87.3 |
Work in process | 41.6 |  |  | 32.4 |
Finished goods | 42.2 |  |  | 42.8 |
Total inventories, net | $ | 184.7 |  |  | $ | 162.5 |
Other current assets: |  |  |
Prepaid expenses | $ | 12.8 |  |  | $ | 10.9 |
Non-trade receivables | 10.7 |  |  | 6.4 |
Income taxes | 0.2 |  |  | 5.5 |
Maintenance and repair supplies and tooling | 2.9 |  |  | 3.7 |
Workers’ compensation reimbursement receivable | 0.8 |  |  | — |
Other current assets | 1.9 |  |  | 2.5 |
Total other current assets | $ | 29.3 |  |  | $ | 29.0 |
Property, plant and equipment, net: |  |  |
Land | $ | 6.1 |  |  | $ | 6.2 |
Buildings | 84.6 |  |  | 80.4 |
Machinery and equipment | 433.3 |  |  | 406.3 |
Construction in progress | 83.7 |  |  | 57.4 |
Total property, plant and equipment | $ | 607.7 |  |  | $ | 550.3 |
Accumulated depreciation | (324.3) |  |  | (296.5) |
Total property, plant and equipment, net | $ | 283.4 |  |  | $ | 253.8 |
Other noncurrent assets: |  |  |
Operating lease right-of-use assets | $ | 27.1 |  |  | $ | 25.6 |
Maintenance and repair supplies and tooling | 19.3 |  |  | 17.5 |
Workers’ compensation reimbursement receivable | 2.7 |  |  | 2.1 |
Note receivable | 1.8 |  |  | 1.8 |
Pension assets | 16.8 |  |  | 0.9 |
Deferred financing fees | 1.3 |  |  | 1.3 |
Other noncurrent assets | 4.3 |  |  | 2.1 |
Total noncurrent assets | $ | 73.3 |  |  | $ | 51.3 |
Supplemental Balance Sheet - Schedule of Liabilities | Selected supplemental liability information is presented below.
| September 30,
| 2021 |  | 2020
| (in millions)
Other current liabilities: |  |  |
Compensation and benefits | $ | 44.6 |  |  | $ | 32.8 |
Customer rebates | 19.6 |  |  | 9.6 |
Interest payable | 6.2 |  |  | 7.3 |
Warranty accrual | 6.7 |  |  | 7.2 |
Deferred revenues | 5.4 |  |  | 5.6 |
Refund liability | 6.0 |  |  | 4.3 |
Operating lease liabilities | 4.0 |  |  | 4.0 |
Taxes other than income taxes | 4.4 |  |  | 3.9 |
Restructuring liabilities | 3.1 |  |  | 2.8 |
Environmental liabilities | 1.2 |  |  | 1.2 |
Income taxes payable | 8.5 |  |  | 0.2 |
Workers’ compensation accrual | 2.6 |  |  | 2.7 |
CARES Act payroll tax liabilities | 3.6 |  |  | — |
Other current liabilities | 11.2 |  |  | 5.0 |
Total current liabilities | $ | 127.1 |  |  | $ | 86.6 |
Other noncurrent liabilities: |  |  |
Operating lease liabilities | $ | 24.6 |  |  | $ | 23.3 |
Warranty accrual | 3.0 |  |  | 7.2 |
Transition tax liability | 4.7 |  |  | 5.2 |
Uncertain tax position liability | 4.8 |  |  | 4.5 |
Workers' compensation accrual | 7.9 |  |  | 3.8 |
NMTC liability | 3.9 |  |  | — |
Asset retirement obligation | 3.6 |  |  | 3.5 |
CARES Act payroll tax liabilities | 3.6 |  |  | 3.3 |
Deferred development grant | 2.5 |  |  | 2.5 |
Other noncurrent liabilities | 3.4 |  |  | 3.0 |
Total noncurrent liabilities | $ | 62.0 |  |  | $ | 56.3 |

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