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Basis of Presentation and Significant Accounting Policies, Goodwill and Other Indefinite-Lived Intangible Assets (Details) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2025 ReportingUnit Region | Dec. 31, 2024 USD ($)
Goodwill and Other Indefinite-Lived Intangible Assets [Abstract] |  |  |
Number of regions | Region |  | 6 |
Impairment of assets held for sale | $ 2.4 |  | $ 2.4
Referral Relationships [Member] |  |  |
Goodwill and Other Indefinite-Lived Intangible Assets [Abstract] |  |  |
Impairment of intangible assets | 1.6 |  | 1.6
Tradenames [Member] |  |  |
Goodwill and Other Indefinite-Lived Intangible Assets [Abstract] |  |  |
Impairment of intangible assets | 0.5 |  | 0.5
Other Assets [Member] |  |  |
Goodwill and Other Indefinite-Lived Intangible Assets [Abstract] |  |  |
Impairment of intangible assets | $ 0.3 |  | $ 0.3
Industrial Injury Prevention Services [Member] |  |  |
Goodwill and Other Indefinite-Lived Intangible Assets [Abstract] |  |  |
Number of reporting units | ReportingUnit |  | 2 |

X
- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482686/350-30-45-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-3 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + Details
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- Definition The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482130/360-10-45-15 + Details
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