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Income Taxes - Schedule of Unrecognized Tax Benefits Roll Forward (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Reconciliation of the beginning and ending amount of unrecognized tax benefits |  |  |
Balance of unrecognized tax benefits, January 1 | $ 4.6 | $ 6.3 | $ 6.8
Additions for tax positions of prior years | 0.0 | 0.2 | 0.3
Additions based on tax positions related to the current year | 0.0 | 0.0 | 0.4
Reductions for tax positions of prior years | (0.2) | (1.9) | (1.2)
Balance of unrecognized tax benefits, December 31 | 4.4 | 4.6 | $ 6.3
Income Taxes |  |  |
Deferred tax assets excluded due to uncertainty in income taxes | 1.0 | 1.1 |
Net amount of unrecognized tax benefits having impact on the effective tax rate for continuing operations | $ 3.4 | $ 3.6 |

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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 217 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-217 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-15A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 10B -Publisher FASB -URI https://asc.fasb.org/1943274/2147482525/740-10-45-10B + Details
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