CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash flows from operating activities:
Net loss	$ (350,598)	$ (177,068)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	60,166	43,569
Decrease in deferred insurance policy acquisition costs	586	850
Decrease in accrued investment income	3,201	11,401
Decrease in reinsurance recoverable on loss reserves	108,416	32,988
Decrease (increase) in reinsurance recoverable on paid losses	18,840	(34,161)
Decrease in prepaid reinsurance premiums	855	630
Decrease in premium receivable	5,672	2,826
Decrease in loss reserves	(1,092,611)	(525,898)
Decrease in premium deficiency reserve	(32,441)	(33,072)
Decrease in unearned premiums	(48,454)	(46,560)
Deferred tax benefit	(36,241)	(38,152)
(Decrease) increase in income taxes payable (current)	(1,732)	293,723
Realized investment gains, excluding impairment losses	(38,900)	(89,180)
Net investment impairment losses	253	6,052
Other	(13,013)	98,644
Net cash used in operating activities	(1,416,001)	(453,408)
Cash flows from investing activities:
Purchase of fixed maturities	(2,417,392)	(3,544,492)
Purchase of equity securities	(84)	(82)
Proceeds from sale of equity securities	504	0
Proceeds from sale of fixed maturities	2,429,143	3,213,002
Proceeds from maturity of fixed maturities	1,091,959	644,028
Net increase in payable for securities	3,509	14,565
Net cash provided by investing activities	1,107,639	327,021
Cash flows from financing activities:
Net proceeds from convertible senior notes	0	334,373
Common stock shares issued	0	772,376
Repayment of long-term debt	(129,178)	0
Net cash (used in) provided by financing activities	(129,178)	1,106,749
Net (decrease) increase in cash and cash equivalents	(437,540)	980,362
Cash and cash equivalents at beginning of period	1,304,154	1,185,739
Cash and cash equivalents at end of period	$ 866,614	$ 2,166,101