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v3.23.1

Intangible Assets (Tables) | 3 Months Ended
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Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets and Excess Reorganization Value [Table Text Block] | Intangible asset balances are as follows (in millions):
| March 31, 2023 |  | December 31, 2022
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Amount
Sales order book | $ | 54.6 |  |  | $ | 39.9 |  |  | $ | 14.7 |  |  | $ | 54.6 |  |  | $ | 39.9 |  |  | $ | 14.7 |
Customer relationships | 68.9 |  |  | 39.0 |  |  | 29.9 |  |  | 68.9 |  |  | 37.9 |  |  | 31.0 |
Total | $ | 123.5 |  |  | $ | 78.9 |  |  | $ | 44.6 |  |  | $ | 123.5 |  |  | $ | 77.8 |  |  | $ | 45.7 |

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