Final Allocation of Total Purchase Price (Detail) - USD ($)	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Goodwill	$ 189,847,202	$ 103,407,351	$ 100,851,144
Total assets acquired	65,538,118
Total liabilities assumed	(66,451,586)
APCN-ACO Inc [Member]
Investments in other entities - cost method	25,000
Identifiable intangible asset - member relationships	1,738,000
Goodwill	1,679,849
Total assets acquired	3,442,849
Deferred tax liability	(367,849)
Total liabilities assumed	(367,849)
Net assets acquired	3,075,000	3,075,000
AP-ACO [Member]
Identifiable intangible asset - member relationships	1,497,000
Goodwill	1,192,968
Total assets acquired	2,689,968
Deferred tax liability	(609,968)
Total liabilities assumed	(609,968)
Net assets acquired	$ 2,080,000	$ 2,080,000