XML 66 R56.htm IDEA: XBRL DOCUMENT v3.22.1
RESERVE FOR LOSSES AND LOSS EXPENSES - Prior year reserve development by segment, reserving class and accident year (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Prior years - net favorable (adverse) effect $ 8,956 $ 5,317
Insurance    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Prior years - net favorable (adverse) effect 7,062 1,505
Insurance | Property and other    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Prior years - net favorable (adverse) effect 11,692 15,391
Insurance | Marine    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Prior years - net favorable (adverse) effect 11,666 11,875
Insurance | Aviation    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Prior years - net favorable (adverse) effect 2,980 1,035
Insurance | Credit and political risk    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Prior years - net favorable (adverse) effect 895 (5,371)
Insurance | Professional lines    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Prior years - net favorable (adverse) effect (6,622) (14,593)
Insurance | Liability    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Prior years - net favorable (adverse) effect (13,549) (6,832)
Reinsurance    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Prior years - net favorable (adverse) effect 1,894 3,812
Reinsurance | Property and other    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Prior years - net favorable (adverse) effect 24,786 969
Reinsurance | Professional lines    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Prior years - net favorable (adverse) effect (24,522) (2,204)
Reinsurance | Liability    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Prior years - net favorable (adverse) effect (4,105) (7,154)
Reinsurance | Credit and surety    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Prior years - net favorable (adverse) effect 7,465 (4,939)
Reinsurance | Motor    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Prior years - net favorable (adverse) effect $ (1,730) $ 17,140