CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Change in net unrealized gains (losses) on investments, income tax	$ 172,765	$ 86,781	$ 178,003	$ 105,146
Reclassification adjustment for investment amounts included in net income, income tax	(1,093)	(7,349)	(1,472)	(10,392)
Change in net unrealized gains (losses) relating to other-than-temporary impaired investments for which a portion has been recognized in earnings, income tax	1,363	(5,407)	2,934	(9,036)
Change in accumulated gain - derivatives, income tax	(2,497)	(1,777)	911	1,844
Reclassification adjustment for derivative amounts included in net income, income tax	$ 362	$ 238	$ 61	$ (123)