XML 48 R79.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Deferred Policy Acquisition Costs, Deferred Sales Inducements and Liability for Lifetime Income Benefit Riders (Deferred Policy Acquisition Costs) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]      
Balance at beginning of year $ 3,535,838 $ 2,714,523 $ 2,905,377
Costs deferred during the year: commissions 419,165 384,432 401,124
Costs deferred during the year: policy issue costs 3,351 3,790 5,517
Amortization: Amortization (280,699) (358,563) (304,162)
Amortization: Impact of unlocking 192,982 30,572 48,198
Effect of net unrealized gains/losses (947,183) 761,084 (341,531)
Balance at end of year $ 2,923,454 $ 3,535,838 $ 2,714,523