v3.21.2
Investments - Contractual Maturities (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]    
Due in one year or less $ 60,592  
Due after one year through five years 435,090  
Due after five years through ten years 65,363  
Due after ten years 7,334  
Total securities with single maturities, amortized cost 568,379  
Original or amortized cost 911,547 $ 1,163,923
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]    
Due in one year or less 59,782  
Due after one year through five years 454,445  
Due after five years through ten years 68,361  
Due after ten years 7,352  
Total before securities with single maturities, fair value 589,940  
Fixed maturities, fair value 938,685 1,213,411
U.S. agency bonds – mortgage-backed    
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]    
Amortized cost of securities without single maturities 148,520  
Original or amortized cost 148,520 272,124
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]    
Fair value of securities without single maturities 153,453  
Fixed maturities, fair value 153,453 281,437
Asset-backed securities    
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]    
Amortized cost of securities without single maturities 194,648  
Original or amortized cost 194,648 184,227
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]    
Fair value of securities without single maturities 195,292  
Fixed maturities, fair value $ 195,292 $ 185,432