XML 44 R34.htm IDEA: XBRL DOCUMENT v3.5.0.2
Summary of Investments - SOI Fixed Maturity AFS and non-credit OTTI in AOCI (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Securities available-for-sale    
Amortized cost $ 19,455,887 $ 20,007,462
Fixed maturities available-for-sale: 20,826,141 20,531,627
Fixed maturities    
Securities available-for-sale    
Amortized cost 19,455,887 20,007,462
Gross unrealized gains 1,512,869 883,519
Gross unrealized losses 142,615 359,354
Fixed maturities available-for-sale: 20,826,141 20,531,627
OTTI (gain) loss included in AOCI (78,801) (88,357)
U.S. government direct obligations and U.S. agencies    
Securities available-for-sale    
Amortized cost 1,046,224 3,291,167
Gross unrealized gains 81,922 55,193
Gross unrealized losses 144 4,608
Fixed maturities available-for-sale: 1,128,002 3,341,752
OTTI (gain) loss included in AOCI 0 0
Obligations of U.S. states and their subdivisions    
Securities available-for-sale    
Amortized cost 1,928,679 1,988,214
Gross unrealized gains 322,860 238,862
Gross unrealized losses 329 7,903
Fixed maturities available-for-sale: 2,251,210 2,219,173
OTTI (gain) loss included in AOCI 0 50
Foreign government securities    
Securities available-for-sale    
Amortized cost 2,167 2,291
Gross unrealized gains 0 0
Gross unrealized losses 3 5
Fixed maturities available-for-sale: 2,164 2,286
OTTI (gain) loss included in AOCI 0 0
Corporate debt securities    
Securities available-for-sale    
Amortized cost 13,618,838 12,388,886
Gross unrealized gains 913,997 437,207
Gross unrealized losses 128,748 320,381
Fixed maturities available-for-sale: 14,404,087 12,505,712
OTTI (gain) loss included in AOCI (1,650) (1,810)
Perpetual debt investments    
Securities available-for-sale    
Amortized cost 135,187 149,062
Fixed maturities available-for-sale: 111,978 116,423
Asset-backed securities    
Securities available-for-sale    
Amortized cost 1,473,550 1,196,326
Gross unrealized gains 133,681 128,406
Gross unrealized losses 10,569 13,362
Fixed maturities available-for-sale: 1,596,662 1,311,370
OTTI (gain) loss included in AOCI (77,118) (86,474)
Residential mortgage-backed securities    
Securities available-for-sale    
Amortized cost 93,656 122,146
Gross unrealized gains 3,389 4,734
Gross unrealized losses 328 1,508
Fixed maturities available-for-sale: 96,717 125,372
OTTI (gain) loss included in AOCI (33) (123)
Commercial mortgage-backed securities    
Securities available-for-sale    
Amortized cost 1,162,680 1,009,320
Gross unrealized gains 56,854 19,117
Gross unrealized losses 2,456 11,529
Fixed maturities available-for-sale: 1,217,078 1,016,908
OTTI (gain) loss included in AOCI 0 0
Collateralized debt obligations    
Securities available-for-sale    
Amortized cost 130,093 9,112
Gross unrealized gains 166 0
Gross unrealized losses 38 58
Fixed maturities available-for-sale: 130,221 9,054
OTTI (gain) loss included in AOCI $ 0 $ 0