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Discontinued Operations - Assets and Liabilities from Discontinued Operations (Details) - Disposed of by held for sale - USD ($) $ in Millions | Jun. 30, 2023 | Dec. 31, 2022
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Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations |  |
Accounts receivable, less allowances | $ 17.6 |
Inventories, net | 40.0 |
Unbilled contract revenue | 3.8 |
Prepaid expenses | 0.3 |
Property, plant, and equipment, net | 35.0 |
Goodwill | 102.2 |
Identifiable intangible assets, net | 108.5 |
Total assets of discontinued operations | 307.4 | $ 0.0
Accounts payable | 15.6 |
Customer advances and billings in excess of contract revenue | 9.5 |
Accrued salaries, wages, and benefits | 1.5 |
Current portion of warranty reserve | 0.8 |
Short-term debt and current portion of long-term debt | 0.2 |
Operating lease liabilities, current | 0.3 |
Other current liabilities | 0.3 |
Operating lease liabilities, non-current | 1.8 |
Total liabilities of discontinued operations | $ 30.0 |

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