v3.22.1
Fair Value of Financial Instruments - Narrative (Details)
$ in Thousands
Mar. 31, 2022
USD ($)
security
Dec. 31, 2021
USD ($)
security
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets, number of securities priced for fair value | security 1 1
Fixed maturities | Significant Other Observable Inputs (Level 2)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets, securities valued using market approach $ 5,595 $ 6,225
Fair Value, Measurements, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Financial instruments, fair value 582,148 695,894
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Financial instruments, fair value 405,500 537,266
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Financial instruments, fair value $ 29,660 $ 27,094
Estimate of Fair Value Measurement | Fair Value, Measurements, Recurring | Fixed maturities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets, valued by third party, percentage 98.80% 99.00%
Assets, valued using market approach, percentage 1.20% 1.00%