CONSOLIDATED CONDENSED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues
Premiums and policy fees	$ 889,166	$ 860,586
Reinsurance ceded	(345,423)	(316,076)
Net of reinsurance ceded	543,743	544,510
Net investment income	520,863	506,413
Realized investment gains (losses):
Derivative financial instruments	78,059	(69,878)
All other investments	(87,599)	22,841
Other-than-temporary impairment losses	(691)	(2,725)
Portion recognized in other comprehensive income (before taxes)	(2,954)	(5,106)
Net impairment losses recognized in earnings	(3,645)	(7,831)
Other income	114,411	109,242
Total revenues	1,165,832	1,105,297
Benefits and expenses
Benefits and settlement expenses, net of reinsurance ceded: (2018 - $347,637; 2017 - $263,377)	786,802	749,642
Amortization of deferred policy acquisition costs and value of business acquired	57,981	20,519
Other operating expenses, net of reinsurance ceded: (2018 - $43,117; 2017 - $51,017)	229,251	222,787
Total benefits and expenses	1,074,034	992,948
Income before income tax	91,798	112,349
Income tax expense	17,686	36,935
Net income	$ 74,112	$ 75,414