Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues
Direct premiums and escrow fees	$ 668,018	$ 661,582	$ 1,182,220	$ 1,205,460
Agent premiums	543,847	559,004	1,045,384	1,086,718
Information and other	200,669	208,752	373,561	397,410
Net investment income	77,711	56,334	159,979	99,126
Net realized investment gains (losses)	8,375	5,485	41,057	(169)
Total revenues	1,498,620	1,491,157	2,802,201	2,788,545
Expenses
Personnel costs	447,027	448,974	858,639	862,616
Premiums retained by agents	429,086	439,550	825,693	856,187
Other operating expenses	222,348	228,935	418,795	447,415
Provision for policy losses and other claims	109,130	113,619	206,842	214,199
Depreciation and amortization	32,884	31,058	65,818	60,805
Premium taxes	16,740	17,049	31,403	33,063
Interest	11,908	10,004	23,844	19,227
Total expenses	1,269,123	1,289,189	2,431,034	2,493,512
Income before income taxes	229,497	201,968	371,167	295,033
Income taxes	42,226	46,877	74,092	63,770
Net income	187,271	155,091	297,075	231,263
Less: Net income (loss) attributable to noncontrolling interests	616	(49)	845	(104)
Net income attributable to the Company	$ 186,655	$ 155,140	$ 296,230	$ 231,367
Net income per share attributable to the Company's stockholders (Note 10):
Basic	$ 1.65	$ 1.38	$ 2.62	$ 2.06
Diluted	1.64	1.37	2.61	2.05
Cash dividends declared per share	$ 0.42	$ 0.38	$ 0.84	$ 0.76
Weighted-average common shares outstanding (Note 10):
Basic	113,050	112,556	112,881	112,406
Diluted	113,498	113,117	113,366	113,093