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Goodwill and Other Intangible Assets - Changes in Carrying Amount of Definite-Lived Intangible Assets (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying value |  | $ 172.9 | $ 169.7
Accumulated amortization |  | (85.6) | (70.7)
Net carrying value |  | 87.3 | 99.0
Total intangible assets (excluding goodwill), gross carrying value |  | 285.3 | 278.2
Total intangible assets (excluding goodwill), net |  | $ 199.7 | 207.5
Definite-lived intangible asset, useful life |  | 11 years |
Estimated amortization of intangibles, year one |  | $ 15.9 |
Estimated amortization of intangibles, year two |  | 15.6 |
Estimated amortization of intangibles, year three |  | 14.7 |
Estimated amortization of intangibles, year four |  | 14.2 |
Estimated amortization of intangibles, year five |  | 8.8 |
Estimated amortization of intangibles, thereafter |  | 18.1 |
Customer Relationships |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying value | [1] | 165.7 | 161.6
Accumulated amortization | [1] | (80.7) | (66.3)
Net carrying value | [1] | $ 85.0 | 95.3
Customer Relationships | TBEI |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Definite-lived intangible asset, useful life |  | 11 years |
Other Intangible Assets |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying value | [1] | $ 7.2 | 8.1
Accumulated amortization | [1] | (4.9) | (4.4)
Net carrying value | [1] | $ 2.3 | $ 3.7
Definite-lived intangible asset, useful life |  | 6 years |
[1] | Average useful life of customer relationships and other definite-lived intangible assets are estimated to be approximately 11 years and 6 years, respectively. The average useful life across all definite-lived intangible assets is estimated to be approximately 11 years.

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