CONSOLIDATED CONDENSED STATEMENTS OF INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2012	Jun. 30, 2011
Revenues
Premiums and policy fees	$ 707,720		$ 712,472	[1]	$ 1,400,118	$ 1,374,728	[1]
Reinsurance ceded	(336,119)		(356,603)	[1]	(632,414)	(681,020)	[1]
Net of reinsurance ceded	371,601		355,869	[1]	767,704	693,708	[1]
Net investment income	438,648		434,425	[1]	882,180	861,736	[1]
Realized investment gains (losses):
Derivative financial instruments	(47,768)		(35,045)	[1]	(77,677)	(47,909)	[1]
All other investments	67,879		64,454	[1]	103,362	74,995	[1]
Other-than-temporary impairment losses	(13,582)		(15,564)	[1]	(47,681)	(31,585)	[1]
Portion recognized in other comprehensive income (before taxes)	140		6,129	[1]	15,643	16,487	[1]
Net impairment losses recognized in earnings	(13,442)		(9,435)	[1]	(32,038)	(15,098)	[1]
Other income	50,121		56,107	[1]	125,263	99,970	[1]
Total revenues	867,039		866,375	[1]	1,768,794	1,667,402	[1]
Benefits and expenses
Benefits and settlement expenses, net of reinsurance ceded: (three months: 2012 - $307,012; 2011 - $357,948; six months: 2012 - $589,788; 2011 - $671,945)	565,414		548,650	[1]	1,152,423	1,082,510	[1]
Amortization of deferred policy acquisition costs and value of business acquired	64,150		61,712	[1]	117,837	122,514	[1]
Other operating expenses, net of reinsurance ceded: (three months: 2012 - $46,931; 2011 - $49,988) six months: 2012 - $94,682; 2011 - $96,263)	120,410		115,852	[1]	240,401	226,875	[1]
Total benefits and expenses	749,974		726,214	[1]	1,510,661	1,431,899	[1]
Income before income tax	117,065		140,161	[1]	258,133	235,503	[1]
Income tax expense	35,438		48,557	[1]	80,650	81,780	[1]
Net income	$ 81,627	[1]	$ 91,604	[1]	$ 177,483	$ 153,723	[1]

[1] Recast from previously reported information