XML 76 R61.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Segment Information - Reconciliation of Segment Results to Income Before Federal Income Tax (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]    
Investment income $ 106,214 $ 94,850
Interest expense (7,181) (7,166)
Corporate expenses (15,498) (12,108)
Income, before federal income tax 102,566 114,759
Preferred stock dividends (2,300) (2,300)
Income available to common stockholders, before federal income tax 100,266 112,459
Standard Commercial Lines    
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]    
Underwriting income (loss) 10,381 38,921
Standard Personal Lines    
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]    
Underwriting income (loss) (5,335) (13,073)
E&S Lines    
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]    
Underwriting income (loss) 13,985 13,335
Investments:    
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]    
Investment income 106,214 94,850
Operating Segments    
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]    
Total all segments $ 125,245 $ 134,033