XML 199 R127.htm IDEA: XBRL DOCUMENT v3.24.1
Segment Information - Revenue and Income (Loss) Before Income Taxes for Each Segment (Detail) - USD ($)
$ in Millions
2 Months Ended 11 Months Ended 12 Months Ended
Dec. 31, 2023
Nov. 15, 2023
Dec. 31, 2022
Dec. 31, 2021
Segment Reporting Information [Line Items]        
Net earned premiums $ 162.3 $ 1,225.9 $ 1,740.4 $ 1,910.1
Net investment income 28.6 121.3 129.8 187.6
Net investment and other gains (losses) (0.3) (22.7) (115.3) 32.6
Total revenue 190.6 1,324.5 1,754.9 2,130.3
Foreign currency exchange gains (losses) (0.6) (1.8) 5.0 (1.6)
Impairment of goodwill and intangibles 0.0 0.0 (28.5) (43.2)
Non-operating expenses (13.1) (41.1) (51.5) (43.7)
Pre-Tax Income (Loss) 2.2 (210.1) (183.2) 5.3
U.S. Operations        
Segment Reporting Information [Line Items]        
Net earned premiums 147.2 1,101.6 1,209.0 1,283.7
Net investment income 23.5 99.9 88.4 119.4
International Operations        
Segment Reporting Information [Line Items]        
Net earned premiums 14.9 124.0 530.5 625.8
Net investment income 4.4 18.7 39.1 50.6
Run-off Lines        
Segment Reporting Information [Line Items]        
Net earned premiums 0.2 0.3 0.9 0.6
Net investment income 0.7 2.7 2.3 3.6
Operating Segments        
Segment Reporting Information [Line Items]        
Pre-Tax Income (Loss) 18.1 (122.0) 39.1 83.7
Operating Segments | U.S. Operations        
Segment Reporting Information [Line Items]        
Net earned premiums 147.2 1,101.6 1,209.0 1,283.7
Net investment income 23.5 99.9 88.4 119.4
Pre-Tax Income (Loss) 17.3 (127.5) (22.9) 61.1
Operating Segments | International Operations        
Segment Reporting Information [Line Items]        
Net earned premiums 14.9 124.0 530.5 625.8
Net investment income 4.4 18.7 39.1 50.6
Pre-Tax Income (Loss) 0.9 6.7 63.8 64.1
Operating Segments | Run-off Lines        
Segment Reporting Information [Line Items]        
Net earned premiums 0.2 0.3 0.9 0.6
Net investment income 0.7 2.7 2.3 3.6
Pre-Tax Income (Loss) (0.1) (1.2) (1.8) (41.5)
Corporate and Other        
Segment Reporting Information [Line Items]        
Net investment income 0.0 0.0 0.0 14.0
Pre-Tax Income (Loss) $ (1.9) $ (22.5) $ (32.0) $ (22.5)