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Organization, Nature of Operations and Basis of Presentation - Summary (Details) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 USD ($) Location Clinic | Dec. 31, 2020 USD ($) Clinic Installment | Dec. 31, 2019 USD ($) | Mar. 31, 2021 USD ($) | Apr. 30, 2020 USD ($)
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Change Due to Net Income Attributable to Parent and Effects of Changes, Net [Abstract] |  |  |  |  |
Percentage of general partnership interest owned | 1.00% |  |  |  |
Number of businesses acquired | Clinic | 5 | 3 |  |  |
Number of closed clinics sold | Clinic | 2 | 14 |  |  |
Aggregate sale price of clinics | $ 100 | $ 1,100 |  |  |
Cash received related to sale of closed clinics |  | 700 |  |  |
Note receivable related to sale of closed clinics |  | $ 400 |  |  |
Number of installments for note receivable | Installment |  | 2 |  |  |
Relief funds | 4,597 | $ 13,501 | $ 0 |  |
Medicare Accelerated and Advance Payments Program [Member] |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Change Due to Net Income Attributable to Parent and Effects of Changes, Net [Abstract] |  |  |  |  |
Advance payment received |  |  |  |  | $ 14,100
Repayment of funds |  |  |  | $ 14,100 |
Public Health and Social Services Emergency Fund [Member] |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Change Due to Net Income Attributable to Parent and Effects of Changes, Net [Abstract] |  |  |  |  |
Grants and other funds | 100,000,000 |  |  |  |
Relief funds | $ 4,600 | $ 13,500 |  |  |
Minimum [Member] |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Change Due to Net Income Attributable to Parent and Effects of Changes, Net [Abstract] |  |  |  |  |
Percentage of limited partnership interest owned | 10.00% |  |  |  |
Number of operating clinic locations | Location | 1 |  |  |  |
Maximum [Member] |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Change Due to Net Income Attributable to Parent and Effects of Changes, Net [Abstract] |  |  |  |  |
Percentage of limited partnership interest owned | 99.00% |  |  |  |

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