CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Investments:
Fixed maturity securities available-for-sale, amortized cost	$ 1,059,598	$ 1,009,572
Equity securities available-for-sale, cost	122,986	113,835
Deferred policy acquisition costs from affiliates	42,008	37,414
Affiliated other assets	5,999	4,780
LIABILITIES
Affiliated losses and settlement expenses	656,855	600,313
Unearned premiums from affiliates	252,152	218,788
Affiliated other liabilities	$ 19,943	$ 25,161
STOCKHOLDERS' EQUITY
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	20,000,000	20,000,000
Common stock, shares issued (in shares)	13,536,635	13,306,027
Common stock, shares outstanding (in shares)	13,536,635	13,306,027