CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Investments:
Fixed maturity securities available-for-sale, amortized cost	$ 1,255,775	$ 1,273,132
Equity investments, cost	167,632	160,371
Deferred policy acquisition costs from affiliates	47,422	44,440
Affiliated other assets	3,678	4,510
LIABILITIES
Affiliated losses and settlement expenses	774,644	771,872
Unearned premiums from affiliates	271,127	267,064
Affiliated other liabilities	$ 20,328	$ 31,121
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)	21,668,287	21,615,105
Common stock, shares outstanding (in shares)	21,668,287	21,615,105