Consolidated Statements of Income and Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues
Net premiums earned	$ 962,823	$ 1,055,082	$ 1,086,972
Investment income, net of investment expenses	55,778	39,670	60,414
Net investment gains (losses) (includes reclassifications for net unrealized gains on available-for-sale securities of $2,256 in 2021; $1,750 in 2020; and $(1,521) in 2019 previously included in accumulated other comprehensive income)	47,383	(32,395)	53,779
Other income	207	6,270	0
Total revenues	1,066,191	1,068,627	1,201,165
Benefits, losses and expenses
Losses and loss settlement expenses	652,155	869,467	830,172
Amortization of deferred policy acquisition costs	203,432	210,252	216,699
Other underwriting expenses (includes reclassifications for employee benefit costs of $(6,603) in 2021; $(4,289) in 2020; and $(4,497) in 2019 previously included in accumulated other comprehensive income)	110,574	143,332	137,415
Goodwill impairment	0	15,091	0
Interest Expense	3,187	0	0
Total benefits, losses and expenses	969,348	1,238,142	1,184,286
Income (loss) before income taxes	96,843	(169,515)	16,879
Federal income tax expense (benefit) (includes reclassifications of $913 in 2021; $534 in 2020 and $1,263 in 2019 previously included in accumulated other comprehensive income)	16,249	(56,809)	2,059
Net income (loss)	80,594	(112,706)	14,820
Other comprehensive income (loss)
Change in net unrealized appreciation on investments	(39,901)	47,054	70,127
Change in liability for underfunded employee benefit plans	19,633	18,456	(20,924)
Other comprehensive income (loss), before tax and reclassification adjustments	(20,268)	65,510	49,203
Income tax effect	4,260	(13,757)	(10,334)
Other comprehensive income (loss), after tax, before reclassification adjustments	(16,008)	51,753	38,869
Reclassification adjustment for net (gains) losses included in income	(2,256)	(1,750)	1,521
Reclassification adjustment for employee benefit costs included in expense	6,603	4,289	4,497
Total reclassification adjustments, before tax	4,347	2,539	6,018
Income tax effect	(913)	(534)	(1,263)
Total reclassification adjustments, after tax	3,434	2,005	4,755
Comprehensive income (loss)	$ 68,020	$ (58,948)	$ 58,444
Weighted average common shares outstanding (in shares)	25,092,297	25,027,358	25,138,039
Earnings (loss) per common share:
Basic (in dollars per share)	$ 3.21	$ (4.50)	$ 0.59
Diluted (in dollars per share)	$ 3.16	$ (4.50)	$ 0.58