Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Investments
Held-to-maturity, at amortized cost (fair value $4,148 in 2012 and $4,161 in 2011)	$ 4,072	$ 4,143
Available-for-sale, at fair value (amortized cost $2,661,561 in 2012 and $2,562,786 in 2011)	2,791,622	2,697,248
Equity securities, at fair value (cost $70,059 in 2012 and $68,559 in 2011)	176,057	159,451
Trading securities, at fair value (amortized cost $15,015 in 2012 and $13,429 in 2011)	15,230	13,454
Mortgage loans	4,781	4,829
Policy loans	7,168	7,209
Other long-term investments	22,154	20,574
Short-term investments	1,100	1,100
Total Investments	3,022,184	2,908,008
Cash and cash equivalents	74,000	144,527
Accrued investment income	32,563	32,219
Premiums receivable (net of allowance for doubtful accounts of $700 in 2012 and $825 in 2011)	186,908	172,348
Deferred policy acquisition costs	105,231	106,654
Property and equipment (primarily land and buildings, at cost, less accumulated depreciation of $35,275 in 2012 and $35,248 in 2011)	44,888	45,644
Reinsurance receivables and recoverables	150,520	128,574
Prepaid reinsurance premiums	3,541	6,191
Income taxes receivable	22,816	26,742
Goodwill and intangible assets	30,166	30,801
Other assets	14,525	17,216
TOTAL ASSETS	3,687,342	3,618,924
Liabilities
Future policy benefits and losses, claims and loss settlement expenses - Property and casualty insurance	954,860	945,051
Future policy benefits and losses, claims and loss settlement expenses - Life insurance	1,493,772	1,476,281
Unearned premiums	304,219	288,991
Accrued expenses and other liabilities	143,288	138,210
Deferred income taxes	19,234	13,624
Debt	45,000	45,000
Trust preferred securities	7,579	15,626
TOTAL LIABILITIES	2,967,952	2,922,783
Stockholders' Equity
Common stock, $0.001 par value; authorized 75,000,000 shares; 25,507,809 and 25,505,350 shares issued and outstanding in 2012 and 2011, respectively	26	25
Additional Paid In Capital	213,492	213,045
Retained earnings	415,843	400,485
Accumulated other comprehensive income, net of tax	90,029	82,586
TOTAL STOCKHOLDERS' EQUITY	719,390	696,141
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 3,687,342	$ 3,618,924