XML 31 R46.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Significant Accounting Policies (Annuity Deposits (Net of Coinsurance), By Product Type) (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
USD ($)
NMOs
Dec. 31, 2018
USD ($)
NMOs
Dec. 31, 2017
USD ($)
NMOs
Product Information [Line Items]      
Fixed index annuities $ 4,603,490 $ 3,898,366 $ 3,668,121
Annual reset fixed rate annuities 10,665 46,744 74,572
Multi-year fixed rate annuities 47,016 22,818 22,291
Single premium immediate annuities (SPIA) 12,002 23,813 24,946
Annuity deposits, net of coinsurance $ 4,673,173 $ 3,991,741 $ 3,789,930
Customer Concentration Risk      
Product Information [Line Items]      
National marketing organizations, number of organizations accounting for more than 10% of annuity deposits collected | NMOs 2 2 2
Customer Concentration Risk | National Marketing Organization, Greater than 10%, NMO 1      
Product Information [Line Items]      
National marketing organizations, percent of annuity deposits collected individually 24.00% 20.00% 14.00%
Customer Concentration Risk | National Marketing Organization, Greater than 10%, NMO 2      
Product Information [Line Items]      
National marketing organizations, percent of annuity deposits collected individually 14.00% 14.00% 10.00%