Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Investments:
Fixed maturity securities-held-to-maturity, at amortized cost (fair value $659,172 and $662,276 in 2016 and 2015, respectively)	$ 639,632	$ 645,164
Fixed maturity securities-available-for-sale, at fair value (cost $408,364 and $376,109 in 2016 and 2015, respectively)	416,568	380,022
Equity securities-available-for-sale, at fair value (cost $0 in 2016 and 2015)	31	31
Short-term investments	11,713	7,718
Other investments	11,390	12,217
Total investments	1,079,334	1,045,152
Cash and cash equivalents	79,290	69,481
Amounts recoverable from reinsurers	92,429	91,077
Premiums receivable, net of allowance	197,185	185,364
Deferred income taxes	28,051	29,905
Accrued interest receivable	12,489	11,685
Property and equipment, net	5,988	6,181
Deferred policy acquisition costs	20,222	20,412
Other assets	42,572	42,788
Total assets	1,557,560	1,502,045
Liabilities:
Reserves for loss and loss adjustment expenses	722,178	718,033
Unearned premiums	169,853	167,983
Reinsurance premiums payable	200	154
Amounts held for others	51,838	49,790
Policyholder deposits	48,059	48,380
Insurance-related assessments	33,313	32,329
Federal income tax payable	8,268	911
Accounts payable and other liabilities	28,673	30,484
Payable for investments purchased	16,425
Total liabilities	1,078,807	1,048,064
Shareholders' equity:
Voting-$0.01 par value authorized shares-50,000,000 in 2016 and 2015; 20,440,124 and 20,388,396 shares issued and 19,181,874 and 19,130,146 shares outstanding in 2016 and 2015, respectively	203	203
Additional paid-in capital	205,862	204,688
Treasury stock at cost (1,258,250 shares in 2016 and 2015)	(22,370)	(22,370)
Accumulated earnings	289,678	268,873
Accumulated other comprehensive income, net	5,380	2,587
Total shareholders' equity	478,753	453,981
Total liabilities and shareholders' equity	$ 1,557,560	$ 1,502,045