CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
REVENUES
Premiums earned (affiliated $640,119, $603,233 and $586,609)	$ 645,183	$ 607,158	$ 592,408
Net investment income	47,637	45,479	47,490
Net realized investment gains (losses) and, beginning in 2018, change in unrealized gains on equity investments	(41,252)	6,556	4,074
Other income (affiliated $8,667, $5,255 and $5,830)	9,159	4,764	5,820
Total revenues	660,727	663,957	649,792
LOSSES AND EXPENSES
Losses and settlement expenses (affiliated $454,293, $417,259 and $385,708)	457,159	421,969	386,897
Dividends to policyholders (all affiliated)	9,209	7,610	13,800
Amortization of deferred policy acquisition costs (affiliated $114,468, $107,854 and $106,931)	115,803	108,910	108,403
Other underwriting expenses (affiliated $88,930, $82,044 and $74,370)	88,824	81,918	74,421
Interest expense (all affiliated)	654	337	337
Other expenses (affiliated $2,129, $1,825 and $1,860)	3,754	3,397	2,727
Total losses and expenses	675,403	624,141	586,585
Income (loss) before income tax expense (benefit)	(14,676)	39,816	63,207
INCOME TAX EXPENSE (BENEFIT)
Current	(1,225)	8,004	18,061
Deferred	(5,983)	(7,426)	(1,057)
Total income tax expense (benefit)	(7,208)	578	17,004
Net income (loss)	$ (7,468)	$ 39,238	$ 46,203
Net income (loss) per common share - basic and diluted	$ (0.35)	$ 1.84	$ 2.20
Average number of common shares outstanding - basic and diluted (in shares)	21,549,436	21,326,358	21,006,302