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Basis of Presentation and Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2023
Accounting Policies [Abstract] |
Schedule of Gain (Loss) on Securities | The components comprising total gains and losses on equity securities are as follows (in thousands) for the periods listed below:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2023 |  | 2022 |  | 2023 |  | 2022
Total losses recognized on equity securities | $ | (1,348) |  |  | $ | (4,331) |  |  | $ | (5,701) |  |  | $ | (14,886) |
Gains recognized on equity securities sold | — |  |  | 2,272 |  |  | — |  |  | 2,272 |
Unrealized losses recognized on equity securities held at end of period | $ | (1,348) |  |  | $ | (2,059) |  |  | $ | (5,701) |  |  | $ | (12,614) |
Schedule of Disaggregated Revenue by Each Payor Type | The following table presents disaggregated revenue generated by payor type for the three and six months ended June 30, 2023 and 2022 (in thousands):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2023 |  | 2022 |  | 2023 |  | 2022
Commercial | $ | 38,907 |  |  | $ | 42,014 |  |  | $ | 78,926 |  |  | $ | 84,167 |
Medicare | 222,159 |  |  | 142,641 |  |  | 438,469 |  |  | 276,299 |
Medicaid | 69,112 |  |  | 70,635 |  |  | 136,451 |  |  | 142,299 |
Other third parties | 18,031 |  |  | 14,407 |  |  | 31,607 |  |  | 30,189 |
Revenue | $ | 348,209 |  |  | $ | 269,697 |  |  | $ | 685,453 |  |  | $ | 532,954 |
Schedule of Contributions to Revenue and Receivables by Payor | The Company had major payors that contributed the following percentages of net revenue:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2023 |  | 2022 |  | 2023 |  | 2022
Payor A | * |  | 10.3 | % |  | * |  | 10.5 | %
Payor B | 38.2 | % |  | 31.0 | % |  | 39.8 | % |  | 30.7 | %
*Less than 10% of total net revenues The Company had major payors that contributed to the following percentages of receivables and receivables – related parties:
| As of June 30, 2023 |  | As of December 31, 2022
|  |  | (Restated)
Payor B | 28.0 | % |  | 26.0 | %
Payor C | 50.0 | % |  | 52.0 | %
Schedule of Carrying Amounts and Fair Values of Financial Instruments | The carrying amounts and fair values of the Company’s financial instruments as of June 30, 2023, are presented below (in thousands):
| Fair Value Measurements |  |
| Level 1 |  | Level 2 |  | Level 3 |  | Total
Assets |  |  |  |  |  |  |
Money market accounts* | $ | 78,647 |  |  | $ | — |  |  | $ | — |  |  | $ | 78,647 |
Marketable securities – certificates of deposit | 2,022 |  |  | — |  |  | — |  |  | 2,022 |
Marketable securities – equity securities | 1,767 |  |  | — |  |  | — |  |  | 1,767 |
Interest rate swaps | — |  |  | 3,116 |  |  | — |  |  | 3,116 |
Interest rate collar | — |  |  | 1,202 |  |  | — |  |  | 1,202 |
Total assets | $ | 82,436 |  |  | $ | 4,318 |  |  | $ | — |  |  | $ | 86,754 |
Liabilities |  |  |  |  |  |  |
APCMG contingent consideration | $ | — |  |  | $ | — |  |  | $ | 1,000 |  |  | $ | 1,000 |
AAMG contingent consideration (see Note 3) | — |  |  | — |  |  | 5,056 |  |  | 5,056 |
VOMG contingent consideration (see Note 3) | — |  |  | — |  |  | 17 |  |  | 17 |
DMG remaining equity interest purchase (see Note 1) | — |  |  | — |  |  | 8,542 |  |  | 8,542 |
Sun labs remaining equity interest purchase (see Note 1) | — |  |  | — |  |  | 7,631 |  |  | 7,631 |
Total liabilities | $ | — |  |  | $ | — |  |  | $ | 22,246 |  |  | $ | 22,246 |
* Included in cash and cash equivalents The carrying amounts and fair values of the Company’s financial instruments as of December 31, 2022, are presented below (in thousands):
| Fair Value Measurements |  |
| Level 1 |  | Level 2 |  | Level 3 |  | Total
Assets |  |  |  |  |  |  |
Money market accounts* | $ | 135,235 |  |  | $ | — |  |  | $ | — |  |  | $ | 135,235 |
Marketable securities – equity securities | 5,567 |  |  | — |  |  | — |  |  | 5,567 |
Contingent equity securities | — |  |  | — |  |  | 1,900 |  |  | 1,900 |
Interest rate swaps | — |  |  | 3,164 |  |  | — |  |  | 3,164 |
Total assets | $ | 140,802 |  |  | $ | 3,164 |  |  | $ | 1,900 |  |  | $ | 145,866 |
Liabilities |  |  |  |  |  |  |
APCMG contingent consideration | $ | — |  |  | $ | — |  |  | $ | 1,000 |  |  | $ | 1,000 |
AAMG contingent consideration (see Note 3) | — |  |  | — |  |  | 5,851 |  |  | 5,851 |
VOMG contingent consideration (see Note 3) | — |  |  | — |  |  | 17 |  |  | 17 |
DMG remaining equity interest purchase (see Note 1) | — |  |  | — |  |  | 8,542 |  |  | 8,542 |
Sun labs remaining equity interest purchase (see Note 1) | — |  |  | — |  |  | 5,849 |  |  | 5,849 |
Total liabilities | $ | — |  |  | $ | — |  |  | $ | 21,259 |  |  | $ | 21,259 |
* Included in cash and cash equivalents
Schedule of Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation | The change in the fair value of Level 3 liabilities for the six months ended June 30, 2023 was as follows (in thousands):
| Amount
Balance at January 1, 2023 | $ | 21,259 |
Unrealized gain recognized from change in fair value of existing Level 3 liabilities* | 987 |
Balance at June 30, 2023 | $ | 22,246 |
* The change in the fair value of existing Level 3 liabilities is presented in unrealized loss on investments in the accompanying consolidated statement of income.

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- Definition Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer. + References No definition available. + Details
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