v3.22.1
Segment Information - Underwriting Results and Reconciliation from Reportable Segments and Other's Category Net Income (Loss) to Consolidated (Details)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
USD ($)
segment
Mar. 31, 2021
USD ($)
Segment Reporting Information [Line Items]    
Number of reporting segments | segment 2  
Net Income (Loss) [Abstract]    
Gross premiums written $ (10,170) $ (2,390)
Net premiums written (10,323) (2,696)
Net premiums earned 1,122 11,764
Other insurance revenue 51 269
Net loss and LAE 2,283 (2,359)
Commission and other acquisition expenses (2,528) (5,942)
General and administrative expenses (2,583) (2,177)
Underwriting (loss) income (1,655) 1,555
Reconciliation to Net Income (Loss)    
Net investment income and net realized and unrealized investment gains 8,876 17,942
Interest and amortization expenses (4,832) (4,831)
Foreign exchange and other gains, net 3,949 3,542
Other general and administrative expenses (8,303) (11,820)
Income tax expense (1,255) (49)
Interest in income of equity method investments 1,271 2,947
Net (loss) income (1,949) 9,286
Diversified Reinsurance | Operating Segments    
Net Income (Loss) [Abstract]    
Gross premiums written 4,736 72
Net premiums written 4,583 (234)
Net premiums earned 5,955 6,240
Other insurance revenue 51 269
Net loss and LAE 1,360 (1,415)
Commission and other acquisition expenses (3,771) (3,755)
General and administrative expenses (2,098) (1,574)
Underwriting (loss) income 1,497 (235)
AmTrust Reinsurance | Operating Segments    
Net Income (Loss) [Abstract]    
Gross premiums written (14,906) (2,462)
Net premiums written (14,906) (2,462)
Net premiums earned (4,833) 5,524
Other insurance revenue 0 0
Net loss and LAE 923 (944)
Commission and other acquisition expenses 1,243 (2,187)
General and administrative expenses (485) (603)
Underwriting (loss) income $ (3,152) $ 1,790