Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Investments:
Fixed maturity securities—held-to-maturity, at amortized cost net of allowance for credit losses of $172 and $274 in 2021 and 2020, respectively, (fair value $569,445 and $621,654 in 2021 and 2020, respectively)	$ 541,224	$ 585,130
Fixed maturity securities—available-for-sale, at fair value (amortized cost $322,863, allowance for credit losses of $0 in 2021 and amortized cost $387,665, allowance for credit losses of $0 in 2020)	341,838	414,279
Equity securities, at fair value (cost $40,674 and $35,787 in 2021 and 2020, respectively)	56,351	43,437
Short-term investments	94,774	45,898
Total investments	1,034,187	1,088,744
Cash and cash equivalents	123,128	61,757
Amounts recoverable from reinsurers (net of allowance for credit losses of $389 and $452 in 2021 and 2020, respectively)	108,394	105,803
Premiums receivable (net of allowance for credit losses of $4,414 and $4,791 in 2021 and 2020, respectively)	154,517	156,760
Deferred income taxes	14,738	13,665
Accrued interest receivable	9,148	9,274
Property and equipment, net	6,158	6,182
Deferred policy acquisition costs	18,580	17,810
Other assets	11,073	10,860
Total assets	1,479,923	1,470,855
Liabilities:
Reserves for loss and loss adjustment expenses	720,789	760,561
Unearned premiums	136,013	129,260
Amounts held for others	41,595	43,402
Policyholder deposits	39,908	41,524
Insurance-related assessments	18,907	17,995
Federal income tax payable	2,685	417
Accounts payable and other liabilities	39,870	38,880
Total liabilities	999,767	1,032,039
Shareholders’ equity:
Common stock: voting—$0.01 par value authorized shares—50,000,000 in 2021 and 2020; 20,622,304 and 20,589,309 shares issued; and 19,364,054 and 19,331,059 shares outstanding in 2021 and 2020, respectively	206	206
Additional paid-in capital	217,311	215,316
Treasury stock, at cost (1,258,250 shares in 2021 and 2020)	(22,370)	(22,370)
Accumulated earnings	270,023	224,645
Accumulated other comprehensive income, net	14,986	21,019
Total shareholders’ equity	480,156	438,816
Total liabilities and shareholders’ equity	$ 1,479,923	$ 1,470,855