v3.24.3
Investments (Credit Losses Related to Debt Securities) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]        
Allowance for credit loss beginning balance $ 1,602 $ 419 $ 555 $ 427
No allowance for credit losses has been previously recognized 1,804 151 2,544 151
An allowance for credit losses was recorded in a previous period     470  
Securities sold during the period (3) (10) (166) (18)
Allowance for credit loss ending balance 3,403 560 3,403 560
Corporate Debt        
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]        
Allowance for credit loss beginning balance 1,210   0  
No allowance for credit losses has been previously recognized 1,398   2,138  
An allowance for credit losses was recorded in a previous period     470  
Securities sold during the period 0   0  
Allowance for credit loss ending balance 2,608   2,608  
Residential mortgage-backed securities        
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]        
Allowance for credit loss beginning balance 203 223 211 229
No allowance for credit losses has been previously recognized 0 0 0 0
An allowance for credit losses was recorded in a previous period     0  
Securities sold during the period (2) (7) (10) (13)
Allowance for credit loss ending balance 201 216 201 216
Other commercial mortgage-backed securities        
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]        
Allowance for credit loss beginning balance 0 0 151 0
No allowance for credit losses has been previously recognized 406 151 406 151
An allowance for credit losses was recorded in a previous period     0  
Securities sold during the period 0 0 (151) 0
Allowance for credit loss ending balance 406 151 406 151
Other asset-backed securities        
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]        
Allowance for credit loss beginning balance 189 196 193 198
No allowance for credit losses has been previously recognized 0 0 0 0
An allowance for credit losses was recorded in a previous period     0  
Securities sold during the period (1) (3) (5) (5)
Allowance for credit loss ending balance $ 188 $ 193 $ 188 $ 193