Unaudited Condensed Consolidated Statements Of Operations And Comprehensive Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
REVENUES:
Gross premiums written	$ 760,405	$ 765,200	$ 1,661,798	$ 1,602,281
Premiums ceded	(206,481)	(183,978)	(336,260)	(326,007)
Net premiums written	553,924	581,222	1,325,538	1,276,274
Change in unearned premiums	(16,677)	(73,951)	(258,006)	(305,775)
Net premiums earned	537,247	507,271	1,067,532	970,499
Net investment income	36,793	37,635	84,412	71,023
Net realized investment gains	85,217	(115,198)	139,422	(35,561)
Total revenues	659,257	429,708	1,291,366	1,005,961
EXPENSES:
Net losses and loss expenses	314,855	275,128	590,141	530,306
Acquisition costs	74,279	64,617	142,001	121,302
General and administrative expenses	96,188	80,585	176,528	163,265
Amortization of intangible assets	634	634	1,267	1,267
Interest expense	14,592	14,188	29,126	28,322
Foreign exchange loss	651	490	700	3,008
Total expenses	501,199	435,642	939,763	847,470
Income before income taxes	158,058	(5,934)	351,603	158,491
Income tax expense	6,195	(4,072)	22,768	1,361
NET INCOME	151,863	(1,862)	328,835	157,130
Other comprehensive loss:
Other comprehensive loss	0	0	0	0
COMPREHENSIVE INCOME	$ 151,863	$ (1,862)	$ 328,835	$ 157,130
PER SHARE DATA
Basic earnings per share	$ 1.55	$ (0.02)	$ 3.33	$ 1.52
Diluted earnings per share	$ 1.52	$ (0.02)	$ 3.27	$ 1.48
Weighted average common shares outstanding	97,809,639	103,267,659	98,672,618	103,552,656
Weighted average common shares and common share equivalents outstanding	99,724,802	103,267,659	100,691,568	105,949,785
Dividends paid per share	$ 0.167	$ 0	$ 0.333	$ 0.125