Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended								12 Months Ended
	Apr. 30, 2020	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Effect of Fourth Quarter Events [Line Items]
Revenue		$ 176,783	$ 180,123	$ 165,169	$ 165,105	$ 178,751	$ 156,060	$ 130,050	$ 95,757	$ 687,180	$ 560,618	$ 519,908
(Loss) income from operations		25,876	37,356	12,906	4,365	10,933	10,066	14,728	(3,307)	80,503	32,420	88,432
Net (loss) income		12,908	25,424	81,001	2,987	(1,280)	10,739	10,664	(2,450)	122,320	17,673	60,267
Net income attributable to ApolloMed		$ 10,057	$ 16,713	$ 7,044	$ 4,052	$ 6,727	$ 3,704	$ 3,545	$ 140	$ 37,866	$ 14,116	$ 10,835
Earnings per share - basic attributable to common stock (in dollars per share)		$ 0.27	$ 0.46	$ 0.20	$ 0.11	$ 0.19	$ 0.11	$ 0.10	$ 0.00	$ 1.04	$ 0.41	$ 0.33
Earnings per share - diluted attributable to common stock (in dollars per share)		$ 0.26	$ 0.45	$ 0.19	$ 0.11	$ 0.18	$ 0.10	$ 0.09	$ 0.00	$ 1.01	$ 0.39	$ 0.29
Gain on sale of equity method investment										$ 99,839	$ 0	$ 0
Universal Care, Inc.
Effect of Fourth Quarter Events [Line Items]
Gain on sale of equity method investment	$ 99,647