Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues
Direct premiums and escrow fees	$ 728,610	$ 649,375	$ 1,910,830	$ 1,854,835
Agent premiums	656,154	615,113	1,701,538	1,701,831
Information and other	208,297	198,680	581,858	596,090
Net investment income	76,628	67,874	236,607	167,000
Net realized investment gains	1,507	11,144	42,564	10,975
Total revenues	1,671,196	1,542,186	4,473,397	4,330,731
Expenses
Personnel costs	470,683	449,839	1,329,322	1,312,455
Premiums retained by agents	518,824	485,621	1,344,517	1,341,808
Other operating expenses	248,252	227,670	667,047	675,085
Provision for policy losses and other claims	124,683	122,196	331,525	336,395
Depreciation and amortization	31,719	31,729	97,537	92,534
Premium taxes	19,484	18,774	50,887	51,837
Interest	12,213	10,770	36,057	29,997
Total expenses	1,425,858	1,346,599	3,856,892	3,840,111
Income before income taxes	245,338	195,587	616,505	490,620
Income taxes	57,171	44,126	131,263	107,896
Net income	188,167	151,461	485,242	382,724
Less: Net income (loss) attributable to noncontrolling interests	985	(19)	1,830	(123)
Net income attributable to the Company	$ 187,182	$ 151,480	$ 483,412	$ 382,847
Net income per share attributable to the Company's stockholders (Note 10):
Basic	$ 1.65	$ 1.34	$ 4.28	$ 3.40
Diluted	1.65	1.34	4.26	3.38
Cash dividends declared per share	$ 0.42	$ 0.42	$ 1.26	$ 1.18
Weighted-average common shares outstanding (Note 10):
Basic	113,163	112,722	112,983	112,541
Diluted	113,741	113,365	113,509	113,213