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Debt - Narrative (Details) - USD ($)
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 15, 2020
Line of Credit Facility [Line Items]      
Interest paid $ 859,000 $ 797,000  
Surplus Notes      
Line of Credit Facility [Line Items]      
Principal amount     $ 50,000,000
Surplus Notes | Federated Mutual      
Line of Credit Facility [Line Items]      
Principal amount     35,000,000
Surplus Notes | Federated Life      
Line of Credit Facility [Line Items]      
Principal amount     $ 15,000,000
Federal Home Loan Bank Advances      
Line of Credit Facility [Line Items]      
Maximum borrowing capacity 425,600,000    
Outstanding balance on credit facility $ 0 $ 0