XML 81 R69.htm IDEA: XBRL DOCUMENT v3.25.1
Segment Information - Schedule of Combined Ratio (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Revenue from External Customer [Line Items]    
Net premiums earned $ 1,158,757 $ 1,050,944
Loss and loss expense incurred 746,325 704,292
Total Insurance Operations    
Revenue from External Customer [Line Items]    
Net premiums earned 1,158,757 1,050,944
Loss and loss expense incurred 746,325 704,292
Net underwriting expenses incurred 365,812 324,367
Dividends to policyholders 983 3,254
Underwriting income (loss) $ 45,637 $ 19,031
Ratio    
Loss and loss expense incurred (as a percent) 64.40% 67.00%
Net underwriting expenses incurred (as a percent) 31.60% 30.90%
Dividends to policyholders (as a percent) 0.10% 0.30%
Underwriting income (loss) (as a percent) 96.10% 98.20%
Standard Commercial Lines    
Revenue from External Customer [Line Items]    
Net premiums earned $ 912,210 $ 834,110
Loss and loss expense incurred 581,666 555,833
Net underwriting expenses incurred 296,643 264,642
Dividends to policyholders 983 3,254
Underwriting income (loss) $ 32,918 $ 10,381
Ratio    
Loss and loss expense incurred (as a percent) 63.80% 66.70%
Net underwriting expenses incurred (as a percent) 32.50% 31.70%
Dividends to policyholders (as a percent) 0.10% 0.40%
Underwriting income (loss) (as a percent) 96.40% 98.80%
Standard Personal Lines    
Revenue from External Customer [Line Items]    
Net premiums earned $ 103,655 $ 103,846
Loss and loss expense incurred 76,669 84,344
Net underwriting expenses incurred 24,949 24,837
Underwriting income (loss) $ 2,037 $ (5,335)
Ratio    
Loss and loss expense incurred (as a percent) 73.90% 81.20%
Net underwriting expenses incurred (as a percent) 24.10% 23.90%
Underwriting income (loss) (as a percent) 98.00% 105.10%
E&S Lines    
Revenue from External Customer [Line Items]    
Net premiums earned $ 142,892 $ 112,988
Loss and loss expense incurred 87,990 64,115
Net underwriting expenses incurred 44,220 34,888
Underwriting income (loss) $ 10,682 $ 13,985
Ratio    
Loss and loss expense incurred (as a percent) 61.60% 56.70%
Net underwriting expenses incurred (as a percent) 30.90% 30.90%
Underwriting income (loss) (as a percent) 92.50% 87.60%