XML 84 R69.htm IDEA: XBRL DOCUMENT v3.22.0.1
Investments (Schedule of Contractual Maturities of Fixed Maturity Investments) (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Amortized  Cost    
Due in less than one year $ 363,795  
Due after one through five years 6,317,351  
Due after five through ten years 3,911,221  
Due after ten years 306,123  
Amortized cost 13,552,579 $ 13,155,035
Debt Securities, Trading, and Equity Securities, FV-NI [Abstract]    
Due in less than one year 365,418  
Due after one through five years 6,297,063  
Due after five through ten years 3,877,715  
Due after ten years 308,166  
Fixed maturity investments 13,507,131 13,506,503
Mortgage-backed    
Amortized  Cost    
Amortized cost 1,584,871  
Debt Securities, Trading, and Equity Securities, FV-NI [Abstract]    
Fixed maturity investments 1,590,226  
Asset-backed    
Amortized  Cost    
Amortized cost 1,069,218  
Debt Securities, Trading, and Equity Securities, FV-NI [Abstract]    
Fixed maturity investments $ 1,068,543 $ 890,984