Condensed Consolidated Statements of Earnings and Comprehensive Earnings - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Condensed Consolidated Statements of Earnings and Comprehensive Earnings
Net premiums earned	$ 176,918	$ 169,003
Net investment income	13,370	13,495
Net realized investment gains	11,400	13,286
Consolidated revenue	201,688	195,784
Losses and settlement expenses	81,171	80,861
Policy acquisition costs	62,243	58,973
Insurance operating expenses	12,200	11,531
Interest expense on debt	1,857	1,856
General corporate expenses	2,375	2,244
Total expenses	159,846	155,465
Equity in earnings of unconsolidated investees	3,751	4,194
Earnings before income taxes	45,593	44,513
Income tax expense	14,200	13,915
Net earnings	31,393	30,598
Other comprehensive earnings (loss), net of tax	21,763	(7,595)
Comprehensive earnings	$ 53,156	$ 23,003
Basic:
Net earnings per share (in dollars per share)	$ 0.72	$ 0.71
Comprehensive earnings per share (in dollars per share)	1.22	0.53
Diluted:
Net earnings per share (in dollars per share)	0.71	0.70
Comprehensive earnings per share (in dollars per share)	$ 1.20	$ 0.52
Weighted average number of common shares outstanding
Basic (in shares)	43,597	43,141
Diluted (in shares)	44,361	43,992
Cash dividends paid per common share (in dollars per share)	$ 0.19	$ 0.18