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Summary of Significant Accounting Policies - Additional Information (Details)
 12 Months Ended
Dec. 31, 2025
USD ($)
segment
entity
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Accounting Policies Table [Line Items]      
Number of consolidated variable interest entities | entity 3    
Number of reporting segments | segment 1    
Number of operating segments | segment 1    
Assets, fair value disclosure $ 31,801,000 $ 73,441,000  
Revenues 3,948,719,000 2,703,561,000 $ 1,823,630,000
Interest income earned 29,111,000 23,986,000 19,586,000
Advertising costs $ 8,037,000 5,756,000 $ 6,956,000
Minimum      
Accounting Policies Table [Line Items]      
Loss ratio 85.00%    
Award requisite service period 3 years    
Maximum      
Accounting Policies Table [Line Items]      
Award requisite service period 4 years    
Realizing Equity, Access, and Community Health (REACH) Model      
Accounting Policies Table [Line Items]      
Revenues $ 1,244,000 984,000  
Level 3      
Accounting Policies Table [Line Items]      
Assets, fair value disclosure 0 0  
Liabilities, fair value disclosure $ 0 $ 0