Medical Liabilities (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Balance, beginning of period	$ 63,972,318	$ 18,957,465
Medical liabilities assumed from Merger	0	39,353,540
Claims paid for previous period	(34,591,915)	(23,075,516)
Incurred health care costs	104,977,066	121,846,375
Claims paid for current period	(66,848,868)	(92,476,160)
Adjustments	(655,266)	(633,386)
Balance, end of period	$ 66,853,335	$ 63,972,318