XML 206 R178.htm IDEA: XBRL DOCUMENT v3.25.0.1
Schedule 3 - Supplementary Insurance Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]      
Earned Premiums $ 4,215.9 $ 4,529.4 $ 5,213.4
Other Income (Loss) 8.2 7.2 9.2
Net Investment Income 407.5 419.7 422.6
Insurance Claims and Policy- holders’ Benefits 3,013.1 3,820.0 4,432.6
Amortization of Deferred Policy Acquisition Costs 538.0 607.1 705.7
Other Insurance Expenses 642.1 758.5 698.2
Deferred Policy Acquisition Costs 630.0 591.6  
Insurance Reserves 5,821.0 6,102.9  
Unearned Premiums 1,275.3 1,300.8  
Non-Core Operations      
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]      
Earned Premiums 245.6 509.3 595.5
Premiums Written 108.3 435.5 527.1
Other Income (Loss) 0.0 0.0 0.0
Net Investment Income 36.4 48.7 49.7
Insurance Claims and Policy- holders’ Benefits 236.8 434.6 493.4
Amortization of Deferred Policy Acquisition Costs 31.3 71.0 93.5
Other Insurance Expenses 51.0 75.6 90.0
Deferred Policy Acquisition Costs 4.1 22.0  
Insurance Reserves 261.7 356.4  
Unearned Premiums 50.3 188.7  
Corporate and Other      
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]      
Earned Premiums 0.0 0.0 0.0
Other Income (Loss) 3.0 2.9 3.8
Net Investment Income 10.9 9.3 15.7
Insurance Claims and Policy- holders’ Benefits 0.1 0.1 0.2
Amortization of Deferred Policy Acquisition Costs 0.0 0.0 0.0
Other Insurance Expenses 66.2 201.9 75.2
Deferred Policy Acquisition Costs 0.0 0.0  
Insurance Reserves 9.0 12.5  
Unearned Premiums 0.0 0.0  
Specialty Property & Casualty Insurance | Operating Segments      
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]      
Earned Premiums 3,576.4 3,632.5 4,046.4
Premiums Written 3,685.4 3,305.4 3,934.4
Other Income (Loss) 4.7 4.5 6.0
Net Investment Income 189.6 168.3 140.7
Insurance Claims and Policy- holders’ Benefits 2,541.7 3,141.9 3,578.2
Amortization of Deferred Policy Acquisition Costs 474.1 496.2 569.8
Other Insurance Expenses 285.4 245.1 232.1
Deferred Policy Acquisition Costs 162.8 142.7  
Insurance Reserves 2,347.9 2,308.7  
Unearned Premiums 1,216.8 1,104.5  
Life Insurance | Operating Segments      
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]      
Earned Premiums 393.9 387.6 571.5
Other Income (Loss) 0.5 (0.2) (0.6)
Net Investment Income 170.6 193.4 216.5
Insurance Claims and Policy- holders’ Benefits 234.5 243.4 360.8
Amortization of Deferred Policy Acquisition Costs 32.6 39.9 42.4
Other Insurance Expenses 239.5 235.9 $ 300.9
Deferred Policy Acquisition Costs 463.1 426.9  
Insurance Reserves 3,202.4 3,425.3  
Unearned Premiums $ 8.2 $ 7.6