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Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Concentration Risk [Line Items] |  |  |  |  |
Increase (reduction) in revenue | $ (5.9) | $ 1.2 | $ (1.0) | $ 18.2 |
Medicare | Revenue Benchmark | Customer Concentration Risk |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration (percent) | 32.00% | 37.00% | 34.00% | 38.00% |
Medicare | Accounts Receivable | Credit Concentration Risk |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration (percent) |  |  | 31.00% |  | 27.00%

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