Commitments and Contingencies - Additional Information (Details) - USD ($)	3 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019
Restricted Cash and Cash Equivalents Items [Line Items]
Operating capital support commitment, maximum amount			$ 3,600,000	$ 3,600,000
Restricted funds			$ 62,671,000	28,340,000			$ 57,956,000
Percent of tax savings to be paid			85.00%
New Mexico Health Connections
Restricted Cash and Cash Equivalents Items [Line Items]
Reinsurance arrangement, capital amount		$ 10,000,000.0
Reinsurance arrangement, term	15 months
Reinsurance arrangement, percentage of gross premiums ceded	90.00%
Reinsurance arrangement, percentage of claims liability indemnified	90.00%
Reinsurance arrangement, maximum amount of insurance risk as a percentage of premiums ceded	105.00%
Restricted Cash For Letters Of Credit
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted funds			$ 1,800,000	1,800,000
Collateral with financial institutions
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted funds			5,745,000	5,742,000
Restricted cash and investments			$ 5,700,000	$ 5,700,000
Minimum risk-based capital requirement			150.00%
Letter of Credit | Line of Credit
Restricted Cash and Cash Equivalents Items [Line Items]
Maximum borrowing capacity					$ 1,800,000
Surety Bond
Restricted Cash and Cash Equivalents Items [Line Items]
Loss contingency, estimate of possible loss						$ 25,000,000.0