CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Investments:
Fixed maturity securities-held-to-maturity, at amortized cost (fair value $607,512 and $561,179 in 2014 and 2013, respectively)	$ 579,145	$ 536,583
Fixed maturity securities-available-for-sale, at fair value (cost $282,240 and $244,409 in 2014 and 2013, respectively)	284,613	237,877
Equity securities-available-for-sale, at fair value (cost $3,446 and $9,482 in 2014 and 2013, respectively)	3,980	9,302
Short-term investments	85,806	84,422
Other investments	11,092	10,591
Total investments	964,636	878,775
Cash and cash equivalents	98,818	123,077
Amounts recoverable from reinsurers	85,512	75,326
Premiums receivable, net of allowance	205,113	171,579
Deferred income taxes	33,542	33,645
Accrued interest receivable	11,234	11,242
Property and equipment, net	7,589	7,549
Deferred policy acquisition costs	21,809	19,171
Other assets	11,464	8,637
Total assets	1,439,717	1,329,001
Liabilities:
Reserves for loss and loss adjustment expenses	657,276	614,557
Unearned premiums	184,238	164,296
Reinsurance premiums payable	1,000	607
Amounts held for others	39,084	35,739
Policyholder deposits	47,450	44,620
Insurance-related assessments	32,137	25,428
Accounts payable and other liabilities	32,651	26,940
Payable for investments purchased	10,397
Total liabilities	1,004,233	912,187
Shareholders' equity:
Common stock: Voting-$0.01 par value authorized shares-50,000,000 in 2014 and 2013; 19,984,575 and 19,855,430 shares issued and 18,726,325 and 18,597,180 shares outstanding in 2014 and 2013, respectively	199	198
Additional paid-in capital	195,436	192,537
Treasury stock at cost (1,258,250 shares in 2014 and 2013)	(22,370)	(22,370)
Accumulated earnings	260,258	250,744
Accumulated other comprehensive income/(loss), net	1,961	(4,295)
Total shareholders' equity	435,484	416,814
Total liabilities and shareholders' equity	$ 1,439,717	$ 1,329,001