Condensed Consolidated Balance Sheets (Unaudited) Statement (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Assets
Fixed-maturities held to maturity—at amortized cost (fair value $50 and $351)	$ 50	$ 358
Fixed-maturities available for sale—at fair value (amortized cost $328,051 and $120,385)	332,736	120,553
Equity securities available for sale—at fair value (cost $78,106 and $78,106)	144,163	135,168
Trading securities—at fair value	2,691,077	3,117,429
Short-term investments—at fair value	1,656,788	1,429,228
Other invested assets—(including variable interest entity (“VIE”) assets at fair value of $82,334 and $81,000)	122,931	128,421
Total investments	4,947,745	4,931,157
Cash	45,115	23,858
Restricted cash	13,361	22,527
Deferred policy acquisition costs	60,776	66,926
Accrued investment income	27,346	30,264
Accounts and notes receivable	79,693	75,106
Property and equipment, at cost (less accumulated depreciation of $103,280 and $101,625)	19,328	10,516
Derivative assets	22,033	16,642
Deferred income taxes, net	0	17,902
Reinsurance recoverables	24,752	46,846
Goodwill and other intangible assets, net	296,948	2,300
Other assets (including VIE other assets of $90,551 and $92,023)	395,454	377,647
Total assets	5,932,551	5,621,691
LIABILITIES AND STOCKHOLDERS’ EQUITY
Unearned premiums	781,660	768,871
Reserve for losses and loss adjustment expenses (“LAE”)	1,749,435	2,185,421
Long-term debt	1,192,397	930,072
VIE debt—at fair value	93,631	94,645
Derivative liabilities (including VIE derivative liabilities of $52,186 and $68,457)	200,227	307,185
Other liabilities (including VIE accounts payable of $195 and $254)	330,954	395,852
Total liabilities	4,348,304	4,682,046
Commitments and Contingencies (Note 16)
Stockholders’ equity
Common stock: par value $.001 per share; 485,000,000 shares authorized at June 30, 2014 and December 31, 2013, respectively; 208,561,438 and 190,636,972 shares issued at June 30, 2014 and December 31, 2013, respectively; 191,013,948 and 173,099,515 shares outstanding at June 30, 2014 and December 31, 2013, respectively	209	191
Treasury stock, at cost: 17,547,490 and 17,537,457 shares at June 30, 2014 and December 31, 2013, respectively	(892,961)	(892,807)
Additional paid-in capital	2,600,616	2,347,104
Retained deficit	(174,634)	(552,226)
Accumulated other comprehensive income	51,017	37,383
Total stockholders’ equity	1,584,247	939,645
Total liabilities and stockholders’ equity	$ 5,932,551	$ 5,621,691