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Business Combinations and Goodwill - Additional Information (Details) - USD ($) $ in Thousands |  |  | 1 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
Aug. 30, 2019 | May 31, 2019 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Business Acquisition [Line Items] |  |  |  |  |
Cash paid |  |  |  | $ 0 | $ 49,403
Accountable Health Care, IPA |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Consideration transferred | $ 25,100 |  |  |  |
Liabilities assumed | 15,400 |  |  |  |
Accountable Health Care, IPA | Dr. Jay |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Cash paid | $ 7,250 |  |  |  |
AMG, Inc |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Consideration transferred |  |  | $ 1,600 |  |
APC and APC-LSMA | Alpha Care Medical Group, Inc. |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Interest acquired |  | 100.00% |  |  |
Cash paid |  | $ 45,056 |  |  |
Escrow deposit for potential post-closing adjustments |  | $ 2,000 |  |  |
APC and APC-LSMA | Accountable Health Care, IPA |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Interest acquired | 75.00% |  |  |  |
APC and APC-LSMA | Accountable Health Care, IPA | Dr. Jay |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Interest acquired | 75.00% |  |  |  |
Consideration transferred | $ 7,300 |  |  |  |
APC | Accountable Health Care, IPA |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Interest acquired | 25.00% |  |  |  |
Payments to acquire investments | $ 2,400 |  |  |  |
APC | AMG, Inc |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Value of shares transferred in acquisition |  |  | $ 400 |  |

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