Condensed Consolidated Statements of Earnings and Comprehensive Earnings - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Condensed Consolidated Statements of Earnings and Comprehensive Earnings
Net premiums earned	$ 211,255	$ 200,815	$ 623,485	$ 587,364
Net investment income	17,532	16,314	51,095	45,123
Net realized gains	3,211	18,808	17,043	48,117
Other-than-temporary-impairment (OTTI) losses on investments		(161)		(217)
Net unrealized gains (losses) on equity securities	4,906	4,848	47,214	(34,535)
Consolidated revenue	236,904	240,624	738,837	645,852
Losses and settlement expenses	108,990	110,231	307,206	304,305
Policy acquisition costs	71,552	68,414	214,586	201,473
Insurance operating expenses	16,982	14,408	50,597	42,191
Interest expense on debt	1,861	1,862	5,583	5,576
General corporate expenses	2,583	2,947	9,142	7,871
Total expenses	201,968	197,862	587,114	561,416
Equity in earnings of unconsolidated investees	4,011	3,587	17,793	15,853
Earnings before income taxes	38,947	46,349	169,516	100,289
Income tax expense:
Income tax expense	6,623	6,977	31,252	15,450
Net earnings	32,324	39,372	138,264	84,839
Other comprehensive earnings (loss), net of tax	15,341	(7,696)	72,506	(41,769)
Comprehensive earnings	$ 47,665	$ 31,676	$ 210,770	$ 43,070
Basic:
Net earnings per share (in dollars per share)	$ 0.72	$ 0.89	$ 3.09	$ 1.91
Comprehensive earnings per share (in dollars per share)	1.06	0.71	4.72	0.97
Diluted:
Net earnings per share (in dollars per share)	0.71	0.88	3.06	1.90
Comprehensive earnings per share (in dollars per share)	$ 1.05	$ 0.70	$ 4.66	$ 0.96
Weighted average number of common shares outstanding
Basic (in shares)	44,823	44,400	44,689	44,311
Diluted (in shares)	45,349	44,940	45,192	44,760
Cash dividends paid per common share	$ 0.23	$ 0.22	$ 0.68	$ 0.65