CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2012	Jun. 30, 2011
Net income	$ 81,627	[1]	$ 91,604	[1]	$ 177,483	$ 153,723	[1]
Other comprehensive income (loss):
Change in net unrealized gains (losses) on investments, net of income tax: (three months: 2012 - $172,765; 2011 - $86,781; six months: 2012 - $178,003; 2011 - $105,146)	320,849		161,169	[1]	330,576	195,281	[1]
Reclassification adjustment for investment amounts included in net income, net of income tax: (three months: 2012 - $(1,093); 2011 - $(7,349); six months: 2012 - $(1,472); 2011 - $(10,392))	(2,030)		(13,654)	[1]	(2,733)	(19,311)	[1]
Change in net unrealized gains (losses) relating to other-than-temporary impaired investments for which a portion has been recognized in earnings, net of income tax: (three months: 2012 - $1,363; 2011 - $(5,407); six months: 2012 - $2,934; 2011 - $(9,036))	2,533		(10,043)	[1]	5,451	(16,782)	[1]
Change in accumulated gain - derivatives, net of income tax: (three months: 2012 - $(2,497); 2011 - $(1,777); six months: 2012 - $911; 2011 - $1,844)	(4,637)		(3,299)	[1]	1,693	3,425	[1]
Reclassification adjustment for derivative amounts included in net income, net of income tax: (three months: 2012 - $362; 2011 - $238; six months: 2012 - $61; 2011 - $(123))	672		443	[1]	113	(228)	[1]
Total other comprehensive income	317,387	[1]	134,616	[1]	335,100	162,385	[1]
Total comprehensive income	$ 399,014	[1]	$ 226,220	[1]	$ 512,583	$ 316,108	[1]

[1] Recast from previously reported information