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Supplemental Consolidated Cash and Cash Flow Information (Tables) | 12 Months Ended
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Dec. 31, 2023
Supplemental Cash Flow Elements [Abstract] |
Schedule of Reconciliation of Net Income to Net Cash Provided by Operating Activities |
($ in millions) |  | Years Ended December 31,
|  | 2023 |  | 2022 |  | 2021
Cash |  | $ | 29.0 |  |  | $ | 42.2 |  |  | $ | 133.0 |
Restricted cash |  | 0.7 |  |  | 0.6 |  |  | 0.7 |
Total cash and restricted cash shown in the Consolidated Statements of Cash Flows |  | $ | 29.7 |  |  | $ | 42.8 |  |  | $ | 133.7 |
Cash paid during the year for: |  |  |  |  |  |
Interest |  | $ | 30.1 |  |  | $ | 18.2 |  |  | $ | 13.5 |
Income taxes |  | 14.0 |  |  | 8.6 |  |  | 23.7 |

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