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Commitments and Contingencies - Concentration Risk (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended		12 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Concentration Risk [Line Items]
Percentage of cash and cash equivalents held with FDIC participating bank		98.60%		98.60%
Cash and cash equivalents (including restricted cash)	[1]	$ 280,433	$ 238,410	$ 280,433	$ 238,410	$ 354,942	$ 361,581
Percentage of cash held in international banks (less than)		0.90%		0.90%
Cook County Health and Hospitals System | Customer Concentration Risk | Accounts Receivable | Trade Accounts Receivable
Concentration Risk [Line Items]
Concentration risk (in percent)				24.50%
Cook County Health and Hospitals System | Customer Concentration Risk | Revenues
Concentration Risk [Line Items]
Concentration risk (in percent)		24.10%	29.60%	24.00%	29.20%
Florida Blue Medicare, Inc. | Customer Concentration Risk | Accounts Receivable | Trade Accounts Receivable
Concentration Risk [Line Items]
Concentration risk (in percent)						46.40%
Florida Blue Medicare, Inc. | Customer Concentration Risk | Revenues
Concentration Risk [Line Items]
Concentration risk (in percent)		11.70%	14.20%	11.80%	14.50%
Molina Healthcare | Customer Concentration Risk | Accounts Receivable | Trade Accounts Receivable
Concentration Risk [Line Items]
Concentration risk (in percent)				10.30%		10.40%
The Centers for Medicare and Medicaid Services | Customer Concentration Risk | Accounts Receivable | Trade Accounts Receivable
Concentration Risk [Line Items]
Concentration risk (in percent)				12.00%
Bright Health Management, Inc. | Customer Concentration Risk | Accounts Receivable | Trade Accounts Receivable
Concentration Risk [Line Items]
Concentration risk (in percent)				11.40%
Blue Cross and Blue Shield of North Carolina | Customer Concentration Risk | Revenues
Concentration Risk [Line Items]
Concentration risk (in percent)		10.20%
[1] As a result of the closing of the sale of True Health during the first quarter of 2021, the consolidated statement of operations and related financial information reflect the Company’s operations and assets and liabilities of True Health as discontinued operations. Cash flows and comprehensive income have not been adjusted and are included in the consolidated statements of cash flows and consolidated statements of comprehensive income (loss) for the six months ended June 30, 2021. See Note 5.

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