CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Investments:
Fixed maturity securities available-for-sale, amortized cost	$ 1,084,305	$ 1,080,006
Equity securities available-for-sale, cost	127,418	123,972
Deferred policy acquisition costs from affiliates	40,605	38,930
Affiliated other assets	3,966	4,900
LIABILITIES
Affiliated losses and settlement expenses	647,663	650,652
Unearned premiums from affiliates	232,814	230,460
Affiliated other liabilities	$ 15,394	$ 23,941
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)	13,700,025	13,562,980
Common stock, shares outstanding (in shares)	13,700,025	13,562,980