Assumption of Identifiable Assets Acquired and Liabilities (Detail) - USD ($)	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Assets acquired
Cash and cash equivalents	$ 36,367,555
Accounts receivable, net	7,261,588
Other receivables	3,211,028
Prepaid expenses	249,193
Property, plant and equipment, net	1,114,332
Restricted cash	745,220
Fair value of intangible assets acquired	14,984,000
Deferred tax assets	2,498,417
Other assets	217,241
Total assets acquired	66,648,574
Liabilities assumed
Accounts payable and accrued liabilities	8,632,893
Medical liabilities	39,353,540
Line of credit	25,000
Convertible note payable, net	5,376,215
Convertible note payable - related party	9,921,938
Noncontrolling interest	3,142,000
Total liabilities assumed and noncontrolling interest	66,451,586
Net liabilities assumed	196,988
Goodwill	$ 185,805,880	$ 189,847,202	$ 103,407,351