Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Details)

v3.21.2
Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Details)
1 Months Ended 3 Months Ended 6 Months Ended
Apr. 30, 2020
USD ($)
Jun. 30, 2021
USD ($)
Jun. 30, 2021
USD ($)
segment
unit
Jun. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
Summary Of Significant Accounting Policies [Line Items]          
Number of operating segments | segment     1    
Number of reportable segments | segment     1    
Amount deposit accounts exceeded FDIC insured limit   $ 268,200,000 $ 268,200,000   $ 294,900,000
Marketable securities – certificates of deposit   67,200,000 67,200,000   67,637,000
Equity securities   119,900,000 119,900,000   36,200,000
Equity securities, FV-NI, unrealized gain   83,800,000 $ 83,800,000    
Risk pool surplus or deficits, settlement period after risk pool performance year     18 months    
Impairment of finite-lived intangible assets     $ 0 $ 0  
Impairment of long-lived assets     $ 0 0  
Number of main reporting units | unit     3    
Impairment of goodwill     $ 0 0  
Impairment of indefinite-lived intangible assets     0 $ 0  
Goodwill   239,053,000 239,053,000   239,053,000
Fiduciary accounts payable   9,092,000 9,092,000   9,642,000
Payments received, monthly     8,000,000.0    
Payments received   24,300,000 48,100,000    
Payments received, revenue   14,100,000 31,200,000    
Contract liabilities   29,594,000 29,594,000   12,988,000
Certificates of Deposit          
Summary Of Significant Accounting Policies [Line Items]          
Marketable securities – certificates of deposit   67,200,000 67,200,000   67,600,000
Universal Care Acquisition Partners, LLC | Universal Care Inc          
Summary Of Significant Accounting Policies [Line Items]          
Ownership interest disposed 48.90%        
Contingent consideration, cash held in escrow $ 15,600,000        
Contingent consideration, preferred shares 6,400,000        
Contingent consideration, fair value 22,000,000.0        
APC | Universal Care Inc          
Summary Of Significant Accounting Policies [Line Items]          
Additional cash consideration entitled to be received $ 15,700,000        
Write off of additional proceeds   15,700,000 15,700,000    
Universal Care Acquisition Partners, LLC | APC          
Summary Of Significant Accounting Policies [Line Items]          
Ownership interest 100.00%        
Accounts Payable and Accrued Expenses          
Summary Of Significant Accounting Policies [Line Items]          
Accrued contract liability recognized     400,000    
Other long-term liabilities | Interest rate swap | Cash flow hedges: | Derivatives designated as hedging instruments:          
Summary Of Significant Accounting Policies [Line Items]          
Derivative liability, fair value   $ 1,200,000 $ 1,200,000   $ 0
PMPM Managed Care Contract          
Summary Of Significant Accounting Policies [Line Items]          
Contract term     one year    
Management Fee Income Contract          
Summary Of Significant Accounting Policies [Line Items]          
Contract term     10 years    
CMS          
Summary Of Significant Accounting Policies [Line Items]          
Expected period of payment upon termination of agreement     30 days    
Minimum | Certificates of Deposit          
Summary Of Significant Accounting Policies [Line Items]          
Short-term marketable securities, maturity period     4 months    
Maximum | Certificates of Deposit          
Summary Of Significant Accounting Policies [Line Items]          
Short-term marketable securities, maturity period     24 months