v3.25.2
Segment Information - Schedule of Financial Information by Segment (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Segment Reporting Information        
Net premiums and contract charges earned $ 302.6 $ 280.9 $ 600.9 $ 556.1
Net investment income 121.1 108.4 236.9 213.8
Other segment income 4.2 4.6 9.7 7.8
Total segment revenues 427.9 393.9 847.5 777.7
Benefits and claims expenses (excluding catastrophe losses) 137.7 148.3 286.9 293.4
Catastrophe losses 29.7 40.9 46.1 57.1
Loss adjustment expenses 17.1 18.1 33.4 35.5
Interest credited 52.7 53.8 105.5 106.7
Operating & admin expenses 82.2 71.1 159.2 143.3
Commissions expense 37.5 35.5 75.5 68.3
Taxes, licenses and fees 9.3 7.6 16.7 15.0
Deferred policy acquisition costs (32.0) (31.3) (63.6) (59.2)
Deferred policy acquisition cost amortization 29.9 27.0 59.5 54.0
Interest expense 8.6 8.7 17.5 17.4
Total segment expenses 372.8 379.7 736.6 731.5
Pretax profit (loss) 55.1 14.2 110.9 46.2
Income tax expense 10.9 2.9 21.9 9.1
Segment profit (loss) (Core earnings) 44.2 11.3 89.0 37.1
Net investment losses (after-tax) 4.7 (4.6) 7.3 (2.9)
Non-core income adjustments (after-tax) 10.1   14.0  
Change in MRB (after-tax)   0.0   1.8
Intangible asset amortization (after-tax)   (2.9)   (5.7)
Net income 29.4 3.8 67.6 30.3
Property & Casualty        
Segment Reporting Information        
Net premiums and contract charges earned 197.3 179.2 390.0 352.4
Net investment income 14.9 9.5 26.6 21.8
Other segment income 0.7 0.6 2.0 1.3
Total segment revenues 212.9 189.3 418.6 375.5
Benefits and claims expenses (excluding catastrophe losses) 89.6 93.8 175.3 184.9
Catastrophe losses 29.7 40.9 46.1 57.1
Loss adjustment expenses 17.1 18.1 33.4 35.5
Interest credited 0.0 0.0 0.0 0.0
Operating & admin expenses 33.4 28.6 66.8 58.9
Commissions expense 16.5 15.7 33.4 29.6
Taxes, licenses and fees 6.1 4.9 11.0 9.6
Deferred policy acquisition costs (24.7) (22.7) (49.0) (43.0)
Deferred policy acquisition cost amortization 23.9 20.5 46.9 40.3
Interest expense 0.0 0.0 0.0 0.0
Total segment expenses 191.6 199.8 363.9 372.9
Pretax profit (loss) 21.3 (10.5) 54.7 2.6
Income tax expense 4.8 (1.9) 11.4 0.6
Segment profit (loss) (Core earnings) 16.5 (8.6) 43.3 2.0
Net investment losses (after-tax) 0.0 0.0 0.0 0.0
Non-core income adjustments (after-tax) 0.0   0.0  
Change in MRB (after-tax)   0.0   0.0
Intangible asset amortization (after-tax)   0.0   0.0
Net income 16.5 (8.6) 43.3 2.0
Life & Retirement        
Segment Reporting Information        
Net premiums and contract charges earned 39.6 38.0 78.1 75.8
Net investment income 97.2 88.9 186.2 174.7
Other segment income 4.9 4.6 9.7 9.4
Total segment revenues 141.7 131.5 274.0 259.9
Benefits and claims expenses (excluding catastrophe losses) 25.2 31.0 61.8 63.2
Catastrophe losses 0.0 0.0 0.0 0.0
Loss adjustment expenses 0.0 0.0 0.0 0.0
Interest credited 51.5 52.6 103.1 104.4
Operating & admin expenses 24.0 23.0 47.9 44.9
Commissions expense 9.8 10.3 19.6 19.8
Taxes, licenses and fees 1.4 0.9 2.3 1.9
Deferred policy acquisition costs (6.1) (7.5) (12.2) (14.2)
Deferred policy acquisition cost amortization 5.7 6.1 11.7 12.7
Interest expense 0.0 0.0 0.0 0.0
Total segment expenses 111.5 116.4 234.1 232.7
Pretax profit (loss) 30.2 15.0 39.9 27.1
Income tax expense 5.6 2.7 7.3 4.9
Segment profit (loss) (Core earnings) 24.6 12.3 32.5 22.2
Net investment losses (after-tax) 0.0 0.0 0.0 0.0
Non-core income adjustments (after-tax) 4.6   5.7  
Change in MRB (after-tax)   0.0   1.8
Intangible asset amortization (after-tax)   0.0   0.0
Net income 20.0 12.3 26.8 24.0
Supplemental & Group Benefits        
Segment Reporting Information        
Net premiums and contract charges earned 65.7 63.7 132.8 127.9
Net investment income 10.6 10.5 20.0 18.3
Other segment income (1.9) (1.2) (3.0) (4.2)
Total segment revenues 74.4 73.0 149.8 142.0
Benefits and claims expenses (excluding catastrophe losses) 22.9 23.5 49.8 45.3
Catastrophe losses 0.0 0.0 0.0 0.0
Loss adjustment expenses 0.0 0.0 0.0 0.0
Interest credited 1.2 1.2 2.4 2.3
Operating & admin expenses 21.1 16.4 38.5 34.4
Commissions expense 11.2 9.5 22.5 18.9
Taxes, licenses and fees 1.7 1.5 3.1 3.0
Deferred policy acquisition costs (1.2) (1.1) (2.4) (2.0)
Deferred policy acquisition cost amortization 0.4 0.4 0.9 1.0
Interest expense 0.0 0.0 0.0 0.0
Total segment expenses 57.3 51.4 114.8 102.9
Pretax profit (loss) 17.1 21.6 35.0 39.1
Income tax expense 3.7 4.6 7.6 8.3
Segment profit (loss) (Core earnings) 13.4 17.0 27.4 30.8
Net investment losses (after-tax) 0.0 0.0 0.0 0.0
Non-core income adjustments (after-tax) 5.5   8.3  
Change in MRB (after-tax)   0.0   0.0
Intangible asset amortization (after-tax)   (2.9)   (5.7)
Net income 7.9 14.1 19.1 25.1
Corporate & Other        
Segment Reporting Information        
Net premiums and contract charges earned 0.0 0.0 0.0 0.0
Net investment income (1.6) (0.5) 4.1 (1.0)
Other segment income 0.5 0.6 1.0 1.3
Total segment revenues (1.1) 0.1 5.1 0.3
Benefits and claims expenses (excluding catastrophe losses) 0.0 0.0 0.0 0.0
Catastrophe losses 0.0 0.0 0.0 0.0
Loss adjustment expenses 0.0 0.0 0.0 0.0
Interest credited 0.0 0.0 0.0 0.0
Operating & admin expenses 3.7 3.1 6.0 5.1
Commissions expense 0.0 0.0 0.0 0.0
Taxes, licenses and fees 0.1 0.3 0.3 0.5
Deferred policy acquisition costs 0.0 0.0 0.0 0.0
Deferred policy acquisition cost amortization 0.0 0.0 0.0 0.0
Interest expense 8.6 8.7 17.5 17.4
Total segment expenses 12.4 12.1 23.8 23.0
Pretax profit (loss) (13.5) (11.9) (18.7) (22.6)
Income tax expense (3.2) (2.5) (4.4) (4.7)
Segment profit (loss) (Core earnings) (10.3) (9.4) (14.3) (17.9)
Net investment losses (after-tax) 4.7 (4.6) 7.3 (2.9)
Non-core income adjustments (after-tax) 0.0   0.0  
Change in MRB (after-tax)   0.0   0.0
Intangible asset amortization (after-tax)   0.0   0.0
Net income $ (15.0) $ (14.0) $ (21.6) $ (20.8)