Unaudited Condensed Consolidated Statements Of Operations And Comprehensive Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
REVENUES:
Gross premiums written	$ 880,614	$ 901,393
Premiums ceded	(108,086)	(129,779)
Net premiums written	772,528	771,614
Change in unearned premiums	(203,980)	(241,329)
Net premiums earned	568,548	530,285
Net investment income	44,551	47,619
Net realized investment gains	45,025	54,205
Other income	854	0
Total revenues	658,978	632,109
EXPENSES:
Net losses and loss expenses	325,176	275,286
Acquisition costs	78,699	67,722
General and administrative expenses	97,138	80,340
Other expense	1,823	0
Amortization of intangible assets	633	633
Interest expense	14,337	14,534
Foreign exchange loss	9,897	49
Total expenses	527,703	438,564
Income before income taxes	131,275	193,545
Income tax expense	6,919	16,573
NET INCOME	124,356	176,972
Other comprehensive income	0	0
COMPREHENSIVE INCOME	$ 124,356	$ 176,972
PER SHARE DATA
Basic earnings per share	$ 1.30	$ 1.78
Diluted earnings per share	$ 1.27	$ 1.74
Weighted average common shares outstanding	95,935,551	99,545,187
Weighted average common shares and common share equivalents outstanding	97,577,029	101,584,662
Dividends paid per share	$ 0.225	$ 0.167