CONSOLIDATED CONDENSED STATEMENTS OF INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenues
Premiums and policy fees	$ 812,323	$ 723,200
Reinsurance ceded	(333,506)	(325,840)
Net of reinsurance ceded	478,817	397,360
Net investment income	514,037	439,012
Realized investment gains (losses):
Derivative financial instruments	(39,574)	3,607
All other investments	72,146	(4,246)
Other-than-temporary impairment losses	(423)	(1,340)
Portion recognized in other comprehensive income (before taxes)	(1,168)	(3,244)
Net impairment losses recognized in earnings	(1,591)	(4,584)
Other income	65,514	54,434
Total revenues	1,089,349	885,583
Benefits and expenses
Benefits and settlement expenses, net of reinsurance ceded: (2014 - $304,136; 2013 - $308,071)	727,428	580,976
Amortization of deferred policy acquisition costs and value of business acquired	65,882	50,039
Other operating expenses, net of reinsurance ceded: (2014 - $44,392; 2013 - $41,746)	144,428	144,754
Total benefits and expenses	937,738	775,769
Income before income tax	151,611	109,814
Income tax expense	49,062	35,936
Net income	$ 102,549	$ 73,878