Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues
Net premiums earned	$ 262,314	$ 245,167
Investment income, net of investment expenses	16,512	13,492
Net realized investment gains (losses) (includes reclassifications for net unrealized investment gains on available-for-sale securities of $90 in 2019 and $37 in 2018; previously included in accumulated other comprehensive income)	26,713	(7,864)
Total revenues	305,539	250,795
Benefits, Losses and Expenses
Losses and loss settlement expenses	164,240	144,728
Amortization of deferred policy acquisition costs	52,219	49,639
Other underwriting expenses (includes reclassifications for employee benefit costs of $1,124 in 2019 and $1,660 in 2018; previously included in accumulated other comprehensive income)	34,403	34,855
Total benefits, losses and expenses	250,862	229,222
Income from continuing operations before income taxes	54,677	21,573
Federal income tax expense (includes reclassifications of $217 in 2019 and $341 in 2018; previously included in accumulated other comprehensive income)	10,156	1,209
Income from continuing operations	44,521	20,364
Income (loss) from discontinued operations, net of taxes	0	(1,912)
Gain on sale of discontinued operations, net of taxes	0	27,307
Net income	44,521	45,759
Other comprehensive income (loss)
Change in net unrealized appreciation on investments	33,354	(51,814)
Change in liability for underfunded employee benefit plans	0	0
Other comprehensive income (loss), before tax and reclassification adjustments	33,354	(51,814)
Income tax effect	(7,005)	10,881
Other comprehensive income (loss), after tax, before reclassification adjustments	26,349	(40,933)
Reclassification adjustment for net realized investment (gains) losses included in income	(90)	(37)
Reclassification adjustment for employee benefit costs included in expense	1,124	1,660
Total reclassification adjustments, before tax	1,034	1,623
Income tax effect	(217)	(341)
Total reclassification adjustments, after tax	817	1,282
Comprehensive income	$ 71,687	$ 6,108
Diluted weighted average common shares outstanding (in shares)	25,604,268	25,458,090
Earnings per common share from continuing operations:
Basic (in dollars per share)	$ 1.77	$ 0.82
Diluted (in dollars per share)	1.74	0.80
Earnings per common share:
Basic (in dollars per share)	1.77	1.84
Diluted (in dollars per share)	$ 1.74	$ 1.80