XML 65 R52.htm IDEA: XBRL DOCUMENT v3.25.2
FAIR VALUE MEASUREMENTS - MEASUREMENTS BY INPUT LEVEL (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Jun. 30, 2024
Assets:      
Total fixed maturities, available for sale $ 23,047.0 $ 22,730.1  
Equity securities - corporate securities 387.4 272.4  
Total trading securities 308.3 304.2  
Investments held by variable interest entities - corporate securities 376.9 433.8  
Total other invested assets 1,500.5 1,491.5  
Assets held in separate accounts 2.9 3.3  
Liabilities:      
Market risk benefit liability 63.8 60.0 $ 93.0
Corporate securities      
Assets:      
Total fixed maturities, available for sale 12,577.4 12,040.8  
Certificates of deposit      
Assets:      
Total fixed maturities, available for sale 0.0 488.3  
United States Treasury securities and obligations of United States government corporations and agencies      
Assets:      
Total fixed maturities, available for sale 188.2 186.2  
States and political subdivisions      
Assets:      
Total fixed maturities, available for sale 2,934.0 2,834.3  
Foreign governments      
Assets:      
Total fixed maturities, available for sale 99.5 91.1  
Asset-backed securities      
Assets:      
Total fixed maturities, available for sale 1,551.3 1,516.4  
Agency residential mortgage-backed securities      
Assets:      
Total fixed maturities, available for sale 919.1 819.6  
Non-agency residential mortgage-backed securities      
Assets:      
Total fixed maturities, available for sale 1,536.2 1,539.1  
Collateralized loan obligations      
Assets:      
Total fixed maturities, available for sale 1,090.5 1,016.8  
Commercial mortgage-backed securities      
Assets:      
Total fixed maturities, available for sale 2,150.8 2,197.5  
Significant unobservable inputs  (Level 3)      
Assets:      
Total assets carried at fair value 75.9 76.4  
Fair Value, Measurements, Recurring      
Assets:      
Total trading securities 308.3 304.2  
Investments held by variable interest entities - corporate securities 376.9 433.8  
Derivatives 210.4 279.0  
Residual tranches 2.6 96.9  
Total other invested assets 213.0 375.9  
Assets held in separate accounts 2.9 3.3  
Total assets carried at fair value 24,335.5 24,119.6  
Residual tranches measured at net asset value 104.9    
Total assets carried at fair value 24,440.4    
Liabilities:      
Market risk benefit liability 63.8 60.0  
Embedded derivatives associated with fixed indexed annuity products 1,502.4 1,471.6  
Total liabilities carried at fair value 1,566.2 1,531.6  
Fair Value, Measurements, Recurring | Corporate securities      
Assets:      
Total fixed maturities, available for sale 12,577.4 12,040.8  
Equity securities - corporate securities 387.4 272.3  
Total trading securities 2.0    
Fair Value, Measurements, Recurring | Certificates of deposit      
Assets:      
Total fixed maturities, available for sale 0.0 488.3  
Fair Value, Measurements, Recurring | United States Treasury securities and obligations of United States government corporations and agencies      
Assets:      
Total fixed maturities, available for sale 188.2 186.2  
Fair Value, Measurements, Recurring | States and political subdivisions      
Assets:      
Total fixed maturities, available for sale 2,934.0 2,834.3  
Fair Value, Measurements, Recurring | Foreign governments      
Assets:      
Total fixed maturities, available for sale 99.5 91.1  
Fair Value, Measurements, Recurring | Asset-backed securities      
Assets:      
Total fixed maturities, available for sale 1,551.3 1,516.4  
Total trading securities 39.9 40.6  
Fair Value, Measurements, Recurring | Agency residential mortgage-backed securities      
Assets:      
Total fixed maturities, available for sale 919.1 819.6  
Total trading securities 98.0 97.1  
Fair Value, Measurements, Recurring | Non-agency residential mortgage-backed securities      
Assets:      
Total fixed maturities, available for sale 1,536.2 1,539.1  
Total trading securities 51.3 53.3  
Fair Value, Measurements, Recurring | Collateralized loan obligations      
Assets:      
Total fixed maturities, available for sale 1,090.5 1,016.8  
Total trading securities 9.4 9.5  
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities      
Assets:      
Total fixed maturities, available for sale 2,150.8 2,197.5  
Total trading securities 107.7 103.7  
Fair Value, Measurements, Recurring | Total Fixed Maturities, Available For Sale      
Assets:      
Total fixed maturities, available for sale 23,047.0 22,730.1  
Fair Value, Measurements, Recurring | Quoted prices in active markets for identical assets or liabilities (Level 1)      
Assets:      
Total trading securities 0.0 0.0  
Investments held by variable interest entities - corporate securities 0.0 0.0  
Derivatives 0.0 0.0  
Residual tranches 0.0 0.0  
Total other invested assets 0.0 0.0  
Assets held in separate accounts 0.0 0.0  
Total assets carried at fair value 161.8 64.0  
Total assets carried at fair value    
Liabilities:      
Market risk benefit liability 0.0 0.0  
Embedded derivatives associated with fixed indexed annuity products 0.0 0.0  
Total liabilities carried at fair value 0.0 0.0  
Fair Value, Measurements, Recurring | Quoted prices in active markets for identical assets or liabilities (Level 1) | Corporate securities      
Assets:      
Total fixed maturities, available for sale 0.0 0.0  
Equity securities - corporate securities 161.8 64.0  
Total trading securities 0.0    
Fair Value, Measurements, Recurring | Quoted prices in active markets for identical assets or liabilities (Level 1) | Certificates of deposit      
Assets:      
Total fixed maturities, available for sale 0.0 0.0  
Fair Value, Measurements, Recurring | Quoted prices in active markets for identical assets or liabilities (Level 1) | United States Treasury securities and obligations of United States government corporations and agencies      
Assets:      
Total fixed maturities, available for sale 0.0 0.0  
Fair Value, Measurements, Recurring | Quoted prices in active markets for identical assets or liabilities (Level 1) | States and political subdivisions      
Assets:      
Total fixed maturities, available for sale 0.0 0.0  
Fair Value, Measurements, Recurring | Quoted prices in active markets for identical assets or liabilities (Level 1) | Foreign governments      
Assets:      
Total fixed maturities, available for sale 0.0 0.0  
Fair Value, Measurements, Recurring | Quoted prices in active markets for identical assets or liabilities (Level 1) | Asset-backed securities      
Assets:      
Total fixed maturities, available for sale 0.0 0.0  
Total trading securities 0.0 0.0  
Fair Value, Measurements, Recurring | Quoted prices in active markets for identical assets or liabilities (Level 1) | Agency residential mortgage-backed securities      
Assets:      
Total fixed maturities, available for sale 0.0 0.0  
Total trading securities 0.0 0.0  
Fair Value, Measurements, Recurring | Quoted prices in active markets for identical assets or liabilities (Level 1) | Non-agency residential mortgage-backed securities      
Assets:      
Total fixed maturities, available for sale 0.0 0.0  
Total trading securities 0.0 0.0  
Fair Value, Measurements, Recurring | Quoted prices in active markets for identical assets or liabilities (Level 1) | Collateralized loan obligations      
Assets:      
Total fixed maturities, available for sale 0.0 0.0  
Total trading securities 0.0 0.0  
Fair Value, Measurements, Recurring | Quoted prices in active markets for identical assets or liabilities (Level 1) | Commercial mortgage-backed securities      
Assets:      
Total fixed maturities, available for sale 0.0 0.0  
Total trading securities 0.0 0.0  
Fair Value, Measurements, Recurring | Quoted prices in active markets for identical assets or liabilities (Level 1) | Total Fixed Maturities, Available For Sale      
Assets:      
Total fixed maturities, available for sale 0.0 0.0  
Fair Value, Measurements, Recurring | Significant other observable inputs (Level 2)      
Assets:      
Total trading securities 308.3 304.2  
Investments held by variable interest entities - corporate securities 376.9 433.8  
Derivatives 210.4 279.0  
Residual tranches 0.0 1.5  
Total other invested assets 210.4 280.5  
Assets held in separate accounts 2.9 3.3  
Total assets carried at fair value 23,622.1 23,730.9  
Total assets carried at fair value    
Liabilities:      
Market risk benefit liability 0.0 0.0  
Embedded derivatives associated with fixed indexed annuity products 0.0 0.0  
Total liabilities carried at fair value 0.0 0.0  
Fair Value, Measurements, Recurring | Significant other observable inputs (Level 2) | Corporate securities      
Assets:      
Total fixed maturities, available for sale 12,179.8 11,912.8  
Equity securities - corporate securities 131.2 134.9  
Total trading securities 2.0    
Fair Value, Measurements, Recurring | Significant other observable inputs (Level 2) | Certificates of deposit      
Assets:      
Total fixed maturities, available for sale 0.0 488.3  
Fair Value, Measurements, Recurring | Significant other observable inputs (Level 2) | United States Treasury securities and obligations of United States government corporations and agencies      
Assets:      
Total fixed maturities, available for sale 188.2 186.2  
Fair Value, Measurements, Recurring | Significant other observable inputs (Level 2) | States and political subdivisions      
Assets:      
Total fixed maturities, available for sale 2,934.0 2,834.3  
Fair Value, Measurements, Recurring | Significant other observable inputs (Level 2) | Foreign governments      
Assets:      
Total fixed maturities, available for sale 99.5 91.1  
Fair Value, Measurements, Recurring | Significant other observable inputs (Level 2) | Asset-backed securities      
Assets:      
Total fixed maturities, available for sale 1,497.8 1,496.6  
Total trading securities 39.9 40.6  
Fair Value, Measurements, Recurring | Significant other observable inputs (Level 2) | Agency residential mortgage-backed securities      
Assets:      
Total fixed maturities, available for sale 919.1 819.6  
Total trading securities 98.0 97.1  
Fair Value, Measurements, Recurring | Significant other observable inputs (Level 2) | Non-agency residential mortgage-backed securities      
Assets:      
Total fixed maturities, available for sale 1,536.2 1,539.1  
Total trading securities 51.3 53.3  
Fair Value, Measurements, Recurring | Significant other observable inputs (Level 2) | Collateralized loan obligations      
Assets:      
Total fixed maturities, available for sale 1,090.5 1,012.8  
Total trading securities 9.4 9.5  
Fair Value, Measurements, Recurring | Significant other observable inputs (Level 2) | Commercial mortgage-backed securities      
Assets:      
Total fixed maturities, available for sale 2,147.3 2,193.4  
Total trading securities 107.7 103.7  
Fair Value, Measurements, Recurring | Significant other observable inputs (Level 2) | Total Fixed Maturities, Available For Sale      
Assets:      
Total fixed maturities, available for sale 22,592.4 22,574.2  
Fair Value, Measurements, Recurring | Significant unobservable inputs  (Level 3)      
Assets:      
Total trading securities 0.0 0.0  
Investments held by variable interest entities - corporate securities 0.0 0.0  
Derivatives 0.0 0.0  
Residual tranches 2.6 95.4  
Total other invested assets 2.6 95.4  
Assets held in separate accounts 0.0 0.0  
Total assets carried at fair value 551.6 324.7  
Total assets carried at fair value    
Liabilities:      
Market risk benefit liability 63.8 60.0  
Embedded derivatives associated with fixed indexed annuity products 1,502.4 1,471.6  
Total liabilities carried at fair value 1,566.2 1,531.6  
Fair Value, Measurements, Recurring | Significant unobservable inputs  (Level 3) | Corporate securities      
Assets:      
Total fixed maturities, available for sale 397.6 128.0  
Equity securities - corporate securities 94.4 73.4  
Total trading securities 0.0    
Fair Value, Measurements, Recurring | Significant unobservable inputs  (Level 3) | Certificates of deposit      
Assets:      
Total fixed maturities, available for sale 0.0 0.0  
Fair Value, Measurements, Recurring | Significant unobservable inputs  (Level 3) | United States Treasury securities and obligations of United States government corporations and agencies      
Assets:      
Total fixed maturities, available for sale 0.0 0.0  
Fair Value, Measurements, Recurring | Significant unobservable inputs  (Level 3) | States and political subdivisions      
Assets:      
Total fixed maturities, available for sale 0.0 0.0  
Fair Value, Measurements, Recurring | Significant unobservable inputs  (Level 3) | Foreign governments      
Assets:      
Total fixed maturities, available for sale 0.0 0.0  
Fair Value, Measurements, Recurring | Significant unobservable inputs  (Level 3) | Asset-backed securities      
Assets:      
Total fixed maturities, available for sale 53.5 19.8  
Total trading securities 0.0 0.0  
Fair Value, Measurements, Recurring | Significant unobservable inputs  (Level 3) | Agency residential mortgage-backed securities      
Assets:      
Total fixed maturities, available for sale 0.0 0.0  
Total trading securities 0.0 0.0  
Fair Value, Measurements, Recurring | Significant unobservable inputs  (Level 3) | Non-agency residential mortgage-backed securities      
Assets:      
Total fixed maturities, available for sale 0.0 0.0  
Total trading securities 0.0 0.0  
Fair Value, Measurements, Recurring | Significant unobservable inputs  (Level 3) | Collateralized loan obligations      
Assets:      
Total fixed maturities, available for sale 0.0 4.0  
Total trading securities 0.0 0.0  
Fair Value, Measurements, Recurring | Significant unobservable inputs  (Level 3) | Commercial mortgage-backed securities      
Assets:      
Total fixed maturities, available for sale 3.5 4.1  
Total trading securities 0.0 0.0  
Fair Value, Measurements, Recurring | Significant unobservable inputs  (Level 3) | Total Fixed Maturities, Available For Sale      
Assets:      
Total fixed maturities, available for sale $ 454.6 $ 155.9