CONSOLIDATED CONDENSED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues
Premiums and policy fees	$ 939,097	$ 935,928	$ 1,862,783	$ 1,819,341
Reinsurance ceded	(337,077)	(391,864)	(653,048)	(737,488)
Net of reinsurance ceded	602,020	544,064	1,209,735	1,081,853
Net investment income	685,194	578,414	1,326,616	1,067,832
Realized investment gains (losses)	44,243	(32,583)	100,463	(73,308)
Other-than-temporary impairment losses	(198)	(10)	(1,493)	(701)
Portion recognized in other comprehensive income (before taxes)	(500)	5	(2,347)	(2,949)
Net impairment losses recognized in earnings	(698)	(5)	(3,840)	(3,650)
Other income	104,172	79,754	182,308	160,428
Total revenues	1,434,931	1,169,644	2,815,282	2,233,155
Benefits and expenses
Benefits and settlement expenses, net of reinsurance ceded: (three and six months 2019 - $257,677 and $509,351; three and six months 2018 - $295,777 and $641,603)	1,003,453	860,860	1,976,607	1,647,209
Amortization of deferred policy acquisition costs and value of business acquired	33,837	52,630	64,210	110,703
Other operating expenses, net of reinsurance ceded: (three and six months 2019 - $56,340 and $108,874; three and six months 2018 - $52,558 and $96,627)	211,918	195,260	412,015	392,413
Total benefits and expenses	1,249,208	1,108,750	2,452,832	2,150,325
Income before income tax	185,723	60,894	362,450	82,830
Income tax expense	31,309	8,626	65,938	12,287
Net income	$ 154,414	$ 52,268	$ 296,512	$ 70,543