XML 57 R40.htm IDEA: XBRL DOCUMENT v3.4.0.3
Investments (Amortized Cost, Gross Unrealized Gains and Losses, Fair Value and OTTI) (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]    
Fixed maturity securities, cost or amortized cost $ 8,230,871 $ 9,470,795
Fixed maturity securities, fair value 9,039,747 10,215,328
Equity securities, cost or amortized cost 361,537 450,563
Equity securities, fair value 403,702 500,057
Fixed maturity securities    
Schedule of Available-for-sale Securities [Line Items]    
Fixed maturity securities, cost or amortized cost 8,230,871 9,470,795
Fixed maturity securities, gross unrealized gains 866,351 845,412
Fixed maturity securities, gross unrealized losses (57,475) (100,879)
Fixed maturity securities, fair value 9,039,747 10,215,328
OTTI in AOCI [1] 32,587 34,513
Fixed maturity securities | United States government and government agencies and authorities    
Schedule of Available-for-sale Securities [Line Items]    
Fixed maturity securities, cost or amortized cost 171,926 150,681
Fixed maturity securities, gross unrealized gains 6,061 3,891
Fixed maturity securities, gross unrealized losses (5) (537)
Fixed maturity securities, fair value 177,982 154,035
OTTI in AOCI [1] 0 0
Fixed maturity securities | States, municipalities and political subdivisions    
Schedule of Available-for-sale Securities [Line Items]    
Fixed maturity securities, cost or amortized cost 561,971 647,335
Fixed maturity securities, gross unrealized gains 46,948 48,389
Fixed maturity securities, gross unrealized losses 0 (94)
Fixed maturity securities, fair value 608,919 695,630
OTTI in AOCI [1] 0 0
Fixed maturity securities | Foreign governments    
Schedule of Available-for-sale Securities [Line Items]    
Fixed maturity securities, cost or amortized cost 500,754 497,785
Fixed maturity securities, gross unrealized gains 75,054 65,188
Fixed maturity securities, gross unrealized losses (465) (723)
Fixed maturity securities, fair value 575,343 562,250
OTTI in AOCI [1] 0 0
Fixed maturity securities | Asset-backed    
Schedule of Available-for-sale Securities [Line Items]    
Fixed maturity securities, cost or amortized cost 3,026 3,499
Fixed maturity securities, gross unrealized gains 1,291 1,367
Fixed maturity securities, gross unrealized losses (306) (204)
Fixed maturity securities, fair value 4,011 4,662
OTTI in AOCI [1] 1,237 1,285
Fixed maturity securities | Residential mortgage-backed    
Schedule of Available-for-sale Securities [Line Items]    
Fixed maturity securities, cost or amortized cost 880,676 953,247
Fixed maturity securities, gross unrealized gains 61,281 48,676
Fixed maturity securities, gross unrealized losses (296) (3,409)
Fixed maturity securities, fair value 941,661 998,514
OTTI in AOCI [1] 14,760 15,343
Fixed maturity securities | Commercial mortgage-backed    
Schedule of Available-for-sale Securities [Line Items]    
Fixed maturity securities, cost or amortized cost 20,628 22,169
Fixed maturity securities, gross unrealized gains 496 352
Fixed maturity securities, gross unrealized losses 0 0
Fixed maturity securities, fair value 21,124 22,521
OTTI in AOCI [1] 0 0
Fixed maturity securities | Corporate    
Schedule of Available-for-sale Securities [Line Items]    
Fixed maturity securities, cost or amortized cost 6,091,890 7,196,079
Fixed maturity securities, gross unrealized gains 675,220 677,549
Fixed maturity securities, gross unrealized losses (56,403) (95,912)
Fixed maturity securities, fair value 6,710,707 7,777,716
OTTI in AOCI [1] 16,590 17,885
Equity securities    
Schedule of Available-for-sale Securities [Line Items]    
Equity securities, cost or amortized cost 361,537 450,563
Equity securities, gross unrealized gains 43,869 52,118
Equity securities, gross unrealized losses (1,704) (2,624)
Equity securities, fair value 403,702 500,057
OTTI in AOCI [1] 0 0
Equity securities | Common Stock    
Schedule of Available-for-sale Securities [Line Items]    
Equity securities, cost or amortized cost 12,311 13,048
Equity securities, gross unrealized gains 6,865 6,623
Equity securities, gross unrealized losses (3) (7)
Equity securities, fair value 19,173 19,664
OTTI in AOCI [1] 0 0
Equity securities | Non-redeemable preferred stocks    
Schedule of Available-for-sale Securities [Line Items]    
Equity securities, cost or amortized cost 349,226 437,515
Equity securities, gross unrealized gains 37,004 45,495
Equity securities, gross unrealized losses (1,701) (2,617)
Equity securities, fair value 384,529 480,393
OTTI in AOCI [1] $ 0 $ 0
[1] Represents the amount of OTTI recognized in accumulated other comprehensive income (“AOCI”). Amount includes unrealized gains and losses on impaired securities relating to changes in the value of such securities subsequent to the impairment measurement date