Investments in Other Entities (Summarized Balance Sheets and Statements of Income) (Detail) - USD ($)		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017
WCollege LLC [Member]
Assets
Cash and cash equivalents		$ 158,088
Other current assets		16,137
Other assets		70,000
Property and equipment, net		33,394,792
Total assets		33,639,017
Liabilities and stockholders' deficit
Current liabilities		1,007,413
Stockholders' equity		32,631,604
Total liabilities and stockholders' equity		33,639,017
Statements of Operations
Revenues		0
Expenses		875,771
Loss before income tax provision (benefit)		(875,771)
Income tax provision (benefit)		162,451
Net (loss) income		(713,320)
LaSalle Medical Associates IPA [Member]
Assets
Cash and cash equivalents		18,444,702	$ 21,065,105
Receivables, net		2,897,337	2,433,116
Other current assets		5,459,442	1,565,606
Loan receivable		1,250,000	1,250,000
Restricted cash		667,414	662,109
Total assets		28,718,895	26,975,936
Liabilities and stockholders' deficit
Current liabilities		26,837,814	20,353,337
Stockholders' equity		1,881,081	6,622,599
Total liabilities and stockholders' equity		28,718,895	26,975,936
Statements of Operations
Revenues		239,031,485	195,143,984
Expenses		251,738,193	188,265,085
Loss) Income from operations		(12,706,708)	6,878,899
Loss before income tax provision (benefit)		(12,533,352)	6,878,899
Income tax provision (benefit)		(3,334,332)	3,083,333
Equity Method Investment, Summarized Financial Information, Other Income		173,356	0
Net (loss) income		(9,199,020)	3,795,566
Universal Care Inc [Member]
Assets
Cash and cash equivalents		27,812,520	21,872,894
Receivables, net		46,978,703	18,618,760
Other current assets		18,670,350	13,021,520
Other assets		661,621	3,754,470
Property and equipment, net		2,786,996	1,576,621
Total assets		96,910,190	58,844,265
Liabilities and stockholders' deficit
Current liabilities		89,731,133	54,421,532
Other liabilities		25,024,043	10,051,952
Stockholders' equity		(17,844,986)	(5,629,219)
Total liabilities and stockholders' equity		96,910,190	58,844,265
Statements of Operations
Revenues		326,719,634	188,389,384
Expenses		335,242,582	193,196,938
Loss before income tax provision (benefit)		(8,522,948)	(4,807,554)
Income tax provision (benefit)		3,692,818	(36,835)
Net (loss) income		(12,215,766)	$ (4,770,719)
Accountable Health Care IPA [Member]
Assets
Cash and cash equivalents		5,582,837
Receivables, net		11,246,477
Other current assets		30,940
Other assets		1,312,768
Property and equipment, net		138,690
Total assets		18,311,712
Liabilities and stockholders' deficit
Current liabilities		16,824,083
Other liabilities		19,500,000
Stockholders' equity		(18,012,371)
Total liabilities and stockholders' equity		18,311,712
Statements of Operations
Revenues		96,204,337
Expenses		99,690,049
Loss before income tax provision (benefit)		(3,485,712)
Income tax provision (benefit)		800
Net (loss) income	[1]	$ (3,486,512)

[1] APC’s allocation of net loss commenced on September 21, 2018.