Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Investments: Securities available for sale:
Fixed maturities, at fair value (amortized cost: $1,128,379 and $1,142,663)	$ 1,148,659	$ 1,154,269
Equity securities, at fair value (cost: $94,078 and $92,326)	111,413	105,095
Other invested assets	27,492	21,142
Total investments	1,287,564	1,280,506
Cash and cash equivalents	34,297	20,052
Accounts receivable, net of allowance for doubtful accounts	201,881	187,696
Receivable for securities sold	834	7,098
Accrued investment income	8,471	8,858
Taxes recoverable	4,082
Receivable from reinsurers related to paid loss and loss adjustment expenses	42,337	29,504
Receivable from reinsurers related to unpaid loss and loss adjustment expenses	88,637	83,724
Ceded unearned premiums	30,432	28,585
Deferred policy acquisition costs	74,410	70,996
Deferred income taxes		3,083
Equity and deposits in pools	26,510	24,675
Other assets	15,594	13,469
Total assets	1,815,049	1,758,246
Liabilities
Loss and loss adjustment expense reserves	562,709	560,321
Unearned premium reserves	442,031	418,033
Accounts payable and accrued liabilities	54,078	66,805
Payable for securities purchased	14,763	5,564
Payable to reinsurers	17,401	13,502
Deferred income taxes	4,503
Taxes payable		1,110
Other liabilities	25,730	22,185
Total liabilities	1,121,215	1,087,520
Commitments and contingencies (Note 7)
Shareholders' equity
Common stock: $0.01 par value; 30,000,000 shares authorized; 17,498,644 and 17,430,189 shares issued	175	174
Additional paid-in capital	187,262	184,549
Accumulated other comprehensive income, net of taxes	24,450	15,843
Retained earnings	565,782	553,995
Treasury stock, at cost: 2,279,570 shares	(83,835)	(83,835)
Total shareholders' equity	693,834	670,726
Total liabilities and shareholders' equity	$ 1,815,049	$ 1,758,246