CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Investments:
Fixed maturity securities available-for-sale, amortized cost	$ 1,189,525	$ 1,130,217
Equity securities available-for-sale, cost	147,479	144,176
Deferred policy acquisition costs from affiliates	40,660	40,535
Affiliated other assets	4,632	4,595
LIABILITIES
Affiliated losses and settlement expenses	685,533	671,169
Unearned premiums from affiliates	243,682	238,637
Affiliated other liabilities	$ 27,871	$ 28,598
STOCKHOLDERS' EQUITY
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	30,000,000	30,000,000
Common stock, shares issued (in shares)	21,222,535	20,780,439
Common stock, shares outstanding (in shares)	21,222,535	20,780,439