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Discontinued Operations - Summary of Results of Operations (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Expenses
Income (loss) from discontinued operations, net of tax (2)	[1]	$ 0	$ (1,135)	$ 1,383	$ (2,908)
Discontinued Operations, Disposed of by Sale | True Health
Revenue
Total revenue		0	29,558	44,833	87,486
Expenses
Cost of revenue (exclusive of depreciation and amortization expenses presented separately below)		0	4,926	5,885	12,861
Claims expenses		0	21,325	33,954	63,136
Selling, general and administrative expenses		0	4,407	5,764	14,318
Depreciation and amortization expenses		0	160	160	480
Total operating expenses		0	30,818	45,763	90,795
Operating loss		0	(1,260)	(930)	(3,309)
Interest income		0	129	112	415
Interest expense		0	(3)	(4)	(10)
Other loss		0	(1)	(25)	(4)
Loss before income taxes and non-controlling interests		0	(1,135)	(847)	(2,908)
Benefit for income taxes		0	0	(326)	0
Income (loss) from discontinued operations, net of tax (2)		0	(1,135)	(521)	(2,908)
Discontinued Operations, Disposed of by Sale | True Health | Platform and operations services
Revenue
Total revenue		0	71	38	350
Discontinued Operations, Disposed of by Sale | True Health | Premiums
Revenue
Total revenue		$ 0	29,487	44,795	87,136
Discontinued Operations, Disposed of by Sale | True Health | Services Agreements
Expenses
Cost of revenue (exclusive of depreciation and amortization expenses presented separately below)			3,700	2,800	10,000
Selling, general and administrative expenses			$ 1,000	$ 1,100	$ 5,100
[1] Includes $1.9 million gain on disposal of discontinued operations for the nine months ended September 30, 2021

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