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

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Schedule of Disaggregated Revenue by Payor Type

The following table presents disaggregated revenue generated by each payor type:

	Years Ended December 31,
	2019		2018		2017
Commercial	$107,339,950		$113,000,115		$116,947,692
Medicare	226,001,659		226,353,120		120,448,509
Medicaid	192,595,964		134,904,142		92,590,894
Other third parties	34,680,524		45,650,375		26,368,835
Revenue	$	560,618,097	$	519,907,752	$	356,355,930

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,
	2019		2018		2017
Payor A	13.6	%	14.6	%	14.1	%
Payor B	13.4	%	18.7	%	18.1	%
Payor C	*%		*%		11.1	%
Payor D	*%		14.1	%	11.3	%
Payor E	11.7	%	14.1	%	*%
Payor F	12.9	%	*%		*%

* Less than 10% of total net revenues

The Company had major payors that contributed to the following percentages of gross receivables:

	As of December 31,
	2019		2018
Payor G	30.4	%	34.1	%
Payor H	36.0	%	42.2	%

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, 2019 are presented below:

	Fair Value Measurements
	Level 1		Level 2		Level 3		Total
Assets
Money market accounts*	$	50,731,008	$	—	$	—	$	50,731,008
Marketable securities – certificates of deposit	116,468,555		—		—		116,468,555
Marketable securities – equity securities	70,118		—		—		70,118
Total	$	167,269,681	$	—	$	—	$	167,269,681

The carrying amounts and fair values of the Company’s financial instruments as of December 31, 2018 are presented below:

	Fair Value Measurements
	Level 1		Level 2		Level 3		Total
Assets
Money market accounts*	$	85,500,745	$	—	$	—	$	85,500,745
Marketable securities – certificates of deposit	1,066,103		—		—		1,066,103
Marketable securities – equity securities	60,999		—		—		60,999
Total	$	86,627,847	$	—	$	—	$	86,627,847

* Included in cash and cash equivalents