Condensed Consolidated Balance Sheets (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Fixed income
Available-for-sale, at fair value	$ 1,181,858	$ 1,132,064
Held-to-maturity, at amortized cost	285,523	309,258
Trading, at fair value	10	15
Equity securities, at fair value	329,467	321,897
Short-term investments, at cost	173,860	39,787
Total investments	1,970,718	1,803,021
Accrued investment income	13,648	14,615
Premiums and reinsurance balances receivable	127,422	107,391
Ceded unearned premium	58,735	62,631
Reinsurance balances recoverable on unpaid losses	332,911	354,163
Deferred policy acquisition costs	91,805	74,435
Property and equipment	19,707	18,370
Investment in unconsolidated investees	50,572	43,358
Goodwill and intangibles	56,475	26,214
Other assets	8,271	10,394
TOTAL ASSETS	2,730,264	2,514,592
Liabilities:
Unpaid losses and settlement expenses	1,173,473	1,173,943
Unearned premiums	363,006	301,537
Reinsurance balances payable	20,695	23,851
Funds held	98,887	32,072
Income taxes-deferred	36,509	33,930
Bonds payable, long-term debt	100,000	100,000
Accrued expenses	50,570	42,436
Other liabilities	22,703	15,447
TOTAL LIABILITIES	1,865,843	1,723,216
Shareholders' Equity
Common stock ($1 par value) (32,472,685 shares issued at 6/30/11) (32,317,691 shares issued at 12/31/10)	32,473	32,318
Paid-in capital	221,324	215,066
Accumulated other comprehensive earnings	104,000	95,992
Retained earnings	895,781	834,375
Deferred compensation	8,561	6,474
Less: Treasury shares at cost (11,400,251 shares at 6/30/11) (11,353,151 shares at 12/31/10)	(397,718)	(392,849)
TOTAL SHAREHOLDERS' EQUITY	864,421	791,376
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 2,730,264	$ 2,514,592