CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net loss	$ (60,555)	$ (293,446)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and other amortization	37,517	51,505
Deferred tax (benefit) provision	(21)	67
Realized investment gains, excluding impairment losses	(3,744)	(104,172)
Net investment impairment losses	0	339
Gain on repurchases of senior notes	0	(17,775)
Other	(35,327)	(22,259)
Change in certain assets and liabilities:
Accrued investment income	(5,920)	8,681
Reinsurance recoverable on loss reserves	20,950	27,775
Reinsurance recoverable on paid losses	1,433	782
Premium receivable	5,250	3,150
Deferred insurance policy acquisition costs	(1,133)	(2,025)
Loss reserves	(457,535)	(448,922)
Premium deficiency reserve	(12,933)	(41,541)
Unearned premiums	3,578	(11,679)
Income taxes payable (current)	(179)	(4,588)
Net cash used in operating activities	(508,619)	(854,108)
Cash flows from investing activities:
Purchase of fixed maturities	(2,182,211)	(3,121,280)
Purchase of equity securities	(51)	(51)
Proceeds from sale of fixed maturities	483,171	2,698,825
Proceeds from maturity of fixed maturities	778,896	878,259
Net (decrease) increase in payable for securities	(97,868)	18,808
Net change in restricted cash	(60,333)	0
Net cash (used in) provided by investing activities	(1,078,396)	474,561
Cash flows from financing activities:
Net proceeds from convertible senior notes	484,697	0
Common stock shares issued	663,392	0
Repurchases of long-term debt	(17,235)	(53,107)
Net cash provided by (used in) financing activities	1,130,854	(53,107)
Net decrease in cash and cash equivalents	(456,161)	(432,654)
Cash and cash equivalents at beginning of period	1,027,625	995,799
Cash and cash equivalents at end of period	$ 571,464	$ 563,145