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Equity-Based Compensation - Additional Information (Details) - USD ($) |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 01, 2028 | Mar. 01, 2027 | Dec. 31, 2025 | Mar. 13, 2025 | Mar. 13, 2024 | Sep. 14, 2023 | Mar. 31, 2025 | Sep. 30, 2025 | Sep. 30, 2025 | Dec. 31, 2027 | Dec. 31, 2026 | Dec. 31, 2024
Share Based Compensation Arrangement by Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Aggregate intrinsic value, options exercised |  |  |  |  |  |  |  | $ 878,000 | $ 878,000 |  |  |
Options granted, fair value |  |  |  |  |  |  |  | $ 0 | 0 |  |  |
Share based compensation expense, unrecognized |  |  |  |  |  |  |  |  | $ 61,437,000 |  |  |
Stock Options |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement by Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Annual award vesting rights, percentage |  |  |  |  |  |  |  |  | 25.00% |  |  |
Award vesting period |  |  |  |  |  |  |  |  | 4 years |  |  |
Award expiration period |  |  |  |  |  |  |  |  | 10 years |  |  |
RSUs | Share-Based Payment Arrangement, Tranche One |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement by Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Annual award vesting rights, percentage |  |  |  |  |  |  |  |  | 33.00% |  |  |
Award vesting period |  |  |  |  |  |  |  |  | 3 years |  |  |
RSUs | Share-Based Payment Arrangement, Tranche Two |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement by Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Annual award vesting rights, percentage |  |  |  |  |  |  |  |  | 25.00% |  |  |
Award vesting period |  |  |  |  |  |  |  |  | 4 years |  |  |
Performance-based Restricted Stock Units |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement by Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Performance target, health plan revenue growth percentage |  |  |  |  |  |  |  |  |  |  |  | 60.00%
Performance target, returning member medical benefit ratio |  |  |  |  |  |  |  |  |  |  |  | 0.20
Performance target, adjusted earnings before interest, less capital expenditures |  |  |  |  |  |  |  |  |  |  |  | 20.00%
Performance-based Restricted Stock Units | Scenario Forecast |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement by Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Annual award vesting rights, percentage | 100.00% | 100.00% |  |  |  |  |  |  |  |  |  |
Performance target, health plan revenue growth percentage |  |  |  |  |  |  |  |  |  | 50.00% | 50.00% |
Performance target, adjusted earnings before interest |  |  |  |  |  |  |  |  |  | 50.00% | 50.00% |
Performance-based Restricted Stock Units | Minimum |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement by Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Annual award vesting rights, percentage |  |  |  | 0.00% | 0.00% | 0.00% |  |  |  |  |  |
Performance-based Restricted Stock Units | Maximum |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement by Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Annual award vesting rights, percentage |  |  |  | 200.00% | 200.00% | 150.00% |  |  |  |  |  |
Performance-based Restricted Stock Units | Share-Based Payment Arrangement, Tranche One |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement by Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Annual award vesting rights, percentage |  |  |  |  |  |  | 50.00% |  |  |  |  |
Performance-based Restricted Stock Units | Share-Based Payment Arrangement, Tranche Two | Scenario Forecast |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement by Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Annual award vesting rights, percentage |  |  | 50.00% |  |  |  |  |  |  |  |  |
Non Vested Awards RSA, Options And RSU |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement by Share Based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Weighted average contractual term |  |  |  |  |  |  |  |  | 1 year 6 months 25 days |  |  |

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