Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Premiums written - insurance
Direct	$ 268,886	$ 232,086	$ 784,180	$ 650,188
Assumed	(126)	(918)	(10,729)	(89,434)
Ceded	(17,918)	(21,891)	(64,195)	(91,867)
Net premiums written	250,842	209,277	709,256	468,887
(Increase) decrease in unearned premiums, net	(38,858)	(18,314)	(91,560)	76,220
Net premiums earned—insurance	211,984	190,963	617,696	545,107
Net investment income	26,732	25,635	81,220	91,225
Net (losses) gains on investments	(7,132)	84,659	(142,891)	178,537
Change in fair value of derivative instruments	10,778	(41,056)	(70,357)	(146,937)
Net gains (losses) on other financial instruments	902	(740)	(3,585)	(80,454)
Gain on sale of affiliate	0	0	0	7,708
Other income	1,314	1,328	5,319	4,163
Total revenues	244,578	260,789	487,402	599,349
Expenses:
Provision for losses	157,174	176,352	429,524	653,374
Change in PDR	(2,325)	966	(1,703)	1,505
Policy acquisition costs	7,958	12,927	35,159	51,778
Other operating expenses	70,974	50,429	212,055	140,776
Interest expense	19,570	12,520	54,871	39,249
Total expenses	253,351	253,194	729,906	886,682
Equity in net income (loss) of affiliates	0	0	1	(13)
Pretax (loss) income	(8,773)	7,595	(242,503)	(287,346)
Income tax provision (benefit)	3,909	(6,730)	(9,149)	(13,180)
Net (loss) income	$ (12,682)	$ 14,325	$ (233,354)	$ (274,166)
Basic net (loss) income per share	$ (0.07)	$ 0.11	$ (1.43)	$ (2.07)
Diluted net (loss) income per share	$ (0.07)	$ 0.11	$ (1.43)	$ (2.07)
Weighted-average number of common shares outstanding—basic	171,830	132,521	162,828	132,530
Weighted-average number of common and common equivalent shares outstanding—diluted	171,830	134,033	162,828	132,530
Dividends per share	$ 0.0025	$ 0.0025	$ 0.0075	$ 0.0075