Consolidated Balance Sheets Statement (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Investments
Fixed-maturities held to maturity—at amortized cost (fair value $676 and $2,748)	$ 679	$ 2,640
Fixed-maturities available for sale at fair value (amortized cost $39,481 and $120,757)	40,696	118,733
Equity securities available for sale—at fair value (cost $88,260 and $114,425)	112,139	128,424
Trading securities—at fair value (including variable interest entity (“VIE”) securities of $0 and $94,521)	4,094,622	4,211,059
Short-term investments at fair value (including VIE investments of $0 and $149,981)	777,532	1,261,703
Other invested assets (including VIE assets at fair value of $78,006 and $0)	126,750	61,000
Total investments	5,152,418	5,783,559
Cash	31,555	35,589
Restricted cash	24,226	27,020
Deferred policy acquisition costs	88,202	139,906
Accrued investment income	34,349	32,262
Accounts and notes receivable (less allowance of $0 and $0)	87,519	102,647
Property and equipment, at cost (less accumulated depreciation of $98,909 and $96,403)	7,456	11,044
Derivative assets (including VIE derivative assets of $1,585 and $1,602)	13,609	17,212
Deferred income taxes, net	0	15,975
Reinsurance recoverables	89,204	157,985
Other assets (including VIE other assets of $99,337 and $105,903)	374,662	333,566
Total assets	5,903,200	6,656,765
Liabilities
Unearned premiums	648,682	637,372
Reserve for losses and loss adjustment expenses (“LAE”)	3,149,936	3,310,902
Reserve for premium deficiency	3,685	3,644
Long-term debt	663,571	818,584
VIE debt—at fair value (including $0 and $0 of non-recourse debt)	108,858	228,240
Derivative liabilities (including VIE derivative liabilities of $70,467 and $19,501)	266,873	126,006
Accounts payable and accrued expenses (including VIE accounts payable of $366 and $530)	325,270	349,726
Total liabilities	5,166,875	5,474,474
Commitments and Contingencies (Note 19)
Stockholders’ equity
Common stock: par value $.001 per share; 325,000,000 shares authorized; 151,131,173 and 150,666,446 shares issued at December 31, 2012 and December 31, 2011, repectively; 133,647,216 and 133,199,159 shares outstanding at December 31, 2012 and December 31, 2011, respectively	151	151
Treasury stock, at cost: 17,483,957 and 17,467,287 shares at December 31, 2012 and December 31, 2011, respectively	(892,094)	(892,052)
Additional paid-in capital	1,967,414	1,966,565
Retained earnings (deficit)	(355,241)	96,227
Accumulated other comprehensive income (loss)	16,095	11,400
Total stockholders’ equity	736,325	1,182,291
Total liabilities and stockholders’ equity	$ 5,903,200	$ 6,656,765