XML 78 R67.htm IDEA: XBRL DOCUMENT v3.5.0.2
Derivative Instruments (Changes in Estimated Fair Value Related to Embedded Derivatives) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Changes In Estimated Fair Value Related To Embedded Derivatives [Line Items]        
Total investment related gains (losses), net $ 118,264 $ (16,178) $ (2,622) $ (8,595)
Gain Loss On Investments Related To Change In Fair Value Of Derivatives Excluding Embedded Derivatives 40,733 (46,537) 94,835 (25,607)
Total benefits and expenses 2,685,845 2,416,550 5,090,833 4,753,038
Net income 236,103 130,391 312,575 255,505
Embedded Derivatives In Modified Coinsurance Or Funds Withheld Arrangements        
Changes In Estimated Fair Value Related To Embedded Derivatives [Line Items]        
Total investment related gains (losses), net 76,966 (23,098) (15,283) (25,423)
Net income 18,807 (3,917) (7,970) (6,504)
Embedded Derivatives In Equity Indexed Annuities [Member]        
Changes In Estimated Fair Value Related To Embedded Derivatives [Line Items]        
Total benefits and expenses (2,019) 8,080 (626) (21,246)
Net income (7,816) 1,233 3,418 (14,766)
Embedded Derivatives In Variable Annuity Contracts [Member]        
Changes In Estimated Fair Value Related To Embedded Derivatives [Line Items]        
Total investment related gains (losses), net (28,137) 50,878 (91,077) 25,745
Net income $ (40,167) $ 19,608 $ (66,010) $ 10,198