Condensed Consolidated Statements Of Income (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
Revenues
Direct premiums and escrow fees	$ 573,116	$ 535,846	$ 1,644,172	$ 1,446,920
Agent premiums	549,052	443,028	1,530,247	1,220,375
Information and other	159,775	159,103	483,430	482,690
Investment income	26,001	23,154	71,544	57,077
Net realized investment (losses) gains	(6,966)	47,271	6,812	61,500
Net other-than-temporary impairment (“OTTI”) losses recognized in earnings:
Net OTTI losses recognized in earnings				(3,564)
Total revenues	1,300,978	1,208,402	3,736,205	3,264,998
Expenses
Personnel costs	377,872	344,140	1,087,139	971,462
Premiums retained by agents	440,453	355,191	1,224,020	978,703
Other operating expenses	222,297	213,111	660,408	607,908
Provision for policy losses and other claims	114,952	106,209	429,744	288,276
Depreciation and amortization	18,554	18,429	55,141	54,944
Premium taxes	15,771	13,470	42,683	36,546
Interest	4,034	1,970	11,209	7,437
Total expenses	1,193,933	1,052,520	3,510,344	2,945,276
Income before income taxes	107,045	155,882	225,861	319,722
Income taxes	42,950	51,982	90,586	111,196
Net income	64,095	103,900	135,275	208,526
Less: Net income attributable to noncontrolling interests	205	430	535	762
Net income attributable to the Company	63,890	103,470	134,740	207,764
Net income per share attributable to the Company’s stockholders (Note 10):
Basic	$ 0.60	$ 0.97	$ 1.25	$ 1.95
Diluted	$ 0.59	$ 0.95	$ 1.23	$ 1.92
Cash dividends declared per share	$ 0.12	$ 0.08	$ 0.36	$ 0.24
Weighted-average common shares outstanding (Note 10):
Basic	106,437	106,445	107,400	106,099
Diluted	108,437	108,709	109,490	108,243
Debt Securities
Net other-than-temporary impairment (“OTTI”) losses recognized in earnings:
Total OTTI losses on debt securities				(1,757)
Portion of OTTI losses on debt securities recognized in other comprehensive loss				$ (1,807)