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Discontinued Operations, Assets Held for Sale and Divestitures Tables | 6 Months Ended
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Mar. 31, 2017
Discontinued Operations and Disposal Groups [Abstract] |
Disposal Group, Details of Gain on Sale [Table Text Block] | The table below presents a summary of the sale of Anvil, in millions.
Gross cash proceeds | $ | 305.7 |
Noncash proceeds | 1.9 |
Total proceeds | 307.6 |
Transaction expenses | (8.3 | )
Net proceeds | 299.3 |
Assets and liabilities disposed | (189.8 | )
Gain on sale, pre-tax | 109.5 |
Income tax | (41.6 | )
Gain on sale, net of tax | $ | 67.9 |
Schedule of Discontinued Operations Income (loss) [Table Text Block] | The table below presents a summary of the operating results for the Anvil discontinued operations. These operating results do not reflect what they would have been had Anvil not been classified as discontinued operations.
| Three months ended |  | Six months ended
| March 31, |  | March 31,
| 2017 |  | 2016 |  | 2017 |  | 2016
| (in millions)
Net sales | $ | — |  |  | $ | 86.4 |  |  | $ | 83.1 |  |  | $ | 166.0 |
Cost of sales | — |  |  | 60.8 |  |  | 62.8 |  |  | 119.3 |
Gross profit | — |  |  | 25.6 |  |  | 20.3 |  |  | 46.7 |
Operating expenses: |  |  |  |  |  |  |
Selling, general and administrative | (1.4 | ) |  | 17.3 |  |  | 16.9 |  |  | 34.9 |
Other charges | — |  |  | — |  |  | 0.2 |  |  | — |
Total operating expenses | (1.4 | ) |  | 17.3 |  |  | 17.1 |  |  | 34.9 |
Income before income taxes | 1.4 |  |  | 8.3 |  |  | 3.2 |  |  | 11.8 |
Income tax expense | 0.7 |  |  | 2.9 |  |  | 1.2 |  |  | 4.2 |
| 0.7 |  |  | 5.4 |  |  | 2.0 |  |  | 7.6 |
Gain on sale, net of tax | 67.9 |  |  | — |  |  | 67.9 |  |  | — |
Income from discontinued operations | $ | 68.6 |  |  | $ | 5.4 |  |  | $ | 69.9 |  |  | $ | 7.6 |
Schedule of Assets and Liabilities Held for Sale [Table Text Block] | The table below presents the components of the balance sheet accounts classified as assets and liabilities held for sale and the related net deferred income tax liability.
| September 30,
| 2016
| (in millions)
Assets: |
Receivables, net | $ | 54.9 |
Inventories | 83.1 |
Other current assets | 4.1 |
Total current assets held for sale | 142.1 |
Property, plant and equipment, net | 46.7 |
Intangible assets | 51.4 |
Other noncurrent assets | 1.8 |
Total noncurrent assets held for sale | 99.9 |
Total assets held for sale | $ | 242.0 |
Liabilities: |
Current portion of long-term debt | $ | 0.3 |
Accounts payable | 27.1 |
Other current liabilities | 17.4 |
Total current liabilities held for sale | 44.8 |
Long-term debt | 0.4 |
Other noncurrent liabilities | 0.4 |
Total noncurrent liabilities held for sale | 0.8 |
Total liabilities held for sale | $ | 45.6 |
Net deferred income tax liability associated with discontinued operation | $ | 13.0 |

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