Basis of Presentation and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Gain (Loss) on Securities

The components comprising total gains and losses on equity securities are as follows (in thousands) for the periods listed below:

	Twelve Months Ended December 31,
	2022		2021
Total losses recognized on equity securities	$	(23,713)	$	(10,745)
Gains recognized on equity securities sold	2,272		—
Unrealized losses recognized on equity securities held at end of period	$	(21,441)	$	(10,745)

Schedule of Disaggregated Revenue by Payor Type

The following table presents disaggregated revenue generated by each payor type (in thousands):

	Years Ended December 31,
	2022		2021		2020
Commercial	$	171,723	$	138,333	$	108,851
Medicare	633,463		307,286		271,596
Medicaid	280,083		283,311		269,079
Other third parties	58,894		44,985		37,654
Revenue	$	1,144,163	$	773,915	$	687,180

Schedule of Contributions to Revenue and Receivables by Payor

The Company had major payors that contributed the following percentages of net revenue:

	Years Ended December 31,
	2022	2021		2020
Payor A	*%	12.5	%	12.5	%
Payor B	*%	*%		10.9	%
Payor C	34.2%	11.9	%	13.1	%
Payor D	*%	15.3	%	16.9	%

* Less than 10% of total net revenues

The Company had major payors that contributed to the following percentages of net receivables and receivables - related parties:

	As of December 31,
	2022		2021
Payor C	25.0	%	*
Payor E	50.0	%	45.0	%
Payor F	**		30.0	%

* Less than 10% of total receivables and receivables - related parties, net

** Payor E and F have been combined in 2022 under Payor E

Schedule of Carrying Amounts and Fair Values of Financial Instruments

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 cash contingent consideration (see Note 3)	—		—		5,851		5,851
VOMG contingent consideration (see Note 3)	—		—		17		17
Total liabilities	$	—	$	—	$	6,868	$	6,868

The carrying amounts and fair values of the Company’s financial instruments as of December 31, 2021 are presented below (in thousands):

	Fair Value Measurements
	Level 1		Level 2		Level 3		Total
Assets
Money market accounts*	$	114,665	$	—	$	—	$	114,665
Marketable securities – certificates of deposit	25,024		—		—		25,024
Marketable securities – equity securities	24,123		4,270		—		28,393
Contingent equity securities	—		—		4,270		4,270
Warrants	—		1,145		—		1,145
Total Assets	$	163,812	$	5,415	$	4,270	$	173,497
Liabilities
Interest rate swaps	$	—	$	1,071	$	—	$	1,071
APCMG contingent consideration	$	—	$	—	$	1,000	$	1,000
Total liabilities	$	—	$	1,071	$	1,000	$	2,071

* Included in cash and cash equivalents

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation

The change in the fair value of Level 3 liabilities for the year ended December 31, 2022 was as follows (in thousands):

	Amount
Balance at January 1, 2022	$	1,000
AAMG cash contingent consideration (see Note 3)	5,851
VOMG contingent consideration (see Note 3)	17
Balance at December 31, 2022	6,868