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Derivative Instruments (Details)
$ in Thousands
Jun. 30, 2023
USD ($)
contract
Dec. 31, 2022
USD ($)
contract
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Estimated Fair Value $ 36,861 $ 15,934
Derivatives not designated as hedge | Equity-indexed options    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Notional Amount $ 911,030 $ 831,657
Number of Contracts | contract 668 595
Estimated Fair Value $ 36,700 $ 15,592
Derivatives not designated as hedge | Equity-indexed embedded derivative    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Notional Amount $ 866,847 $ 782,997
Number of Contracts | contract 7,095 6,131
Estimated Fair Value $ 142,800 $ 111,618