v3.19.2
Investments - Net Realized and Unrealized Gains (Losses) on Investment (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Gain (Loss) on Securities [Line Items]          
Other investments, gross gains   $ 220      
Other investments, gross losses   0      
Other investments, net   220      
Net realized gains (losses) on investment, gross gains $ 25,587 2,507 $ 28,011 $ 4,641  
Net realized gains (losses) on investment, gross losses 1,501 2,921 15,026 4,698  
Net realized gains (losses) on investment, net 24,086 (414) 12,985 (57)  
Proceeds from sales of fixed maturities classified as available-for-sale 625,254 36,315 709,615 116,555  
Deferred income tax (114)   (114)   $ (33)
Net unrealized gains (losses), net of deferred income tax 29,278   29,278   (59,762)
Change, net of deferred income tax     89,040   (81,651)
Fixed maturities          
Gain (Loss) on Securities [Line Items]          
AFS fixed maturities, gross gains 25,436 2,287 27,860 2,939  
AFS fixed maturities, gross losses 1,501 2,921 14,881 4,698  
AFS fixed maturities, net 23,935 $ (634) 12,979 (1,759)  
Other Debt Obligations          
Gain (Loss) on Securities [Line Items]          
Other investments, gross gains 151   151 1,702  
Other investments, gross losses 0   145 0  
Other investments, net 151   6 $ 1,702  
Available-for-sale securities | Fixed maturities          
Gain (Loss) on Securities [Line Items]          
Net unrealized gains (losses) $ 29,392   $ 29,392   $ (59,729)