XML 59 R44.htm IDEA: XBRL DOCUMENT v3.8.0.1
Investments - Amortized cost and fair value of trading securities (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Amortized cost of fixed maturities, trading $ 2,055,722 $ 1,946,501
Fixed maturities, trading at fair value 2,084,251 2,006,385
Amortized cost of short-term investments, trading 7,428 14,969
Short-term investments, trading at fair value 7,425 14,965
Life Funds Withheld Assets    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Amortized cost of fixed maturities, trading 2,055,722 1,946,501
Fixed maturities, trading at fair value 2,084,251 2,006,385
Amortized cost of short-term investments, trading 7,428 14,969
Short-term investments, trading at fair value 7,425 14,965
Trading securities, cost 2,063,150 1,961,470
Total investments trading 2,091,676 2,021,350
Life Funds Withheld Assets | U.S. Government and Government Agencies    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Amortized cost of fixed maturities, trading 9,729 11,640
Fixed maturities, trading at fair value 9,320 11,042
Life Funds Withheld Assets | US States, municipalities and political subdivisions of the States    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Amortized cost of fixed maturities, trading   30
Fixed maturities, trading at fair value   31
Life Funds Withheld Assets | Non-U.S. Governments    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Amortized cost of fixed maturities, trading 485,495 473,849
Fixed maturities, trading at fair value 497,108 485,171
Life Funds Withheld Assets | Corporate    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Amortized cost of fixed maturities, trading 1,507,879 1,412,846
Fixed maturities, trading at fair value 1,525,761 1,460,292
Life Funds Withheld Assets | Residential mortgage-backed securities    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Amortized cost of fixed maturities, trading 1,023 1,020
Fixed maturities, trading at fair value 893 932
Life Funds Withheld Assets | Commercial mortgage-backed securities    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Amortized cost of fixed maturities, trading 7,358 7,345
Fixed maturities, trading at fair value 7,472 7,580
Life Funds Withheld Assets | Other asset-backed securities    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Amortized cost of fixed maturities, trading 44,238 39,771
Fixed maturities, trading at fair value $ 43,697 $ 41,337