CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:
Net income (loss)	$ 59,982	$ (72,930)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and other amortization	14,765	22,858
Deferred tax benefit	(86)	(8)
Realized investment losses (gains), excluding impairment losses	231	(1,259)
Loss on repurchases of senior notes	837	0
Other	(22,218)	6,256
Change in certain assets and liabilities:
Accrued investment income	(151)	(4,047)
Prepaid reinsurance premium	(1,828)	79
Reinsurance recoverable on loss reserves	6,467	8,669
Reinsurance recoverable on paid losses	1,394	2,322
Premium receivable	7,962	(4,813)
Deferred insurance policy acquisition costs	(433)	(963)
Loss reserves	(226,842)	(208,495)
Premium deficiency reserve	(5,173)	(1,650)
Unearned premiums	5,618	1,373
Income taxes payable (current)	548	899
Net cash used in operating activities	(158,927)	(251,709)
Cash flows from investing activities:
Purchase of fixed maturities	(582,261)	(975,555)
Purchase of equity securities	(19)	(18)
Proceeds from sale of fixed maturities	419,293	361,119
Proceeds from maturity of fixed maturities	295,188	282,701
Net increase in payable for securities	12,692	43,435
Net change in restricted cash	(4)	0
Net cash provided by (used in) investing activities	144,889	(288,318)
Cash flows from financing activities:
Net proceeds from convertible senior notes	0	484,670
Common stock shares issued	0	663,542
Repurchases of long-term debt	(21,767)	0
Net cash (used in) provided by financing activities	(21,767)	1,148,212
Net (decrease) increase in cash and cash equivalents	(35,805)	608,185
Cash and cash equivalents at beginning of period	332,692	1,027,625
Cash and cash equivalents at end of period	$ 296,887	$ 1,635,810