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Reinsurance - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Reinsurance [Line Items]      
Reinsurance recoverables $ 24,160 $ 15,016  
Reinsurance retention policy, reinsured risk, percentage 45.90% 112.20%  
Casualty Excess and Property Excess | Maximum      
Reinsurance [Line Items]      
Reinsurance recoverables     $ 22,500
Property and casualty business | Casualty Excess and Property Excess      
Reinsurance [Line Items]      
Reinsurance retention policy, reinsured risk, percentage   7.02% 637.00%
Property and casualty business | Casualty Excess and Property Excess | Minimum      
Reinsurance [Line Items]      
Retention amount   $ 58,500 $ 58,500
Property and casualty business | Casualty Excess and Property Excess | Maximum      
Reinsurance [Line Items]      
Reinsurance recoverables   30,000 30,000
Retention amount   $ 71,500 $ 71,500
Percent of program placed   65.00% 75.00%