Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
ASSETS
Available-for-sale, at fair value (amortized cost of $3,054,391 and allowance for credit losses of $306 in 2023) (amortized cost of $2,945,273 and allowance for credit losses of $339 in 2022)	$ 2,855,849	$ 2,666,950
Equity securities, at fair value (cost - $354,022 in 2023 and $328,019 in 2022)	590,041	498,382
Short-term investments, at cost which approximates fair value	134,923	36,229
Other invested assets	59,081	47,922
Cash	36,424	22,818
Total investments and cash	3,676,318	3,272,301
Accrued investment income	24,062	21,259
Premiums and reinsurance balances receivable, net of allowances for uncollectible amounts of $21,438 in 2023 and $18,696 in 2022	221,206	189,501
Ceded unearned premium	112,257	138,457
Reinsurance balances recoverable on unpaid losses and settlement expenses, net of allowances for uncollectible amounts of $10,608 in 2023 and $11,250 in 2022	757,349	740,089
Deferred policy acquisition costs	146,566	127,859
Property and equipment, at cost, net of accumulated depreciation of $74,279 in 2023 and $68,633 in 2022	46,715	49,573
Investment in unconsolidated investees	56,966	58,275
Goodwill and intangibles	53,562	53,562
Income taxes-deferred	15,872	40,269
Other assets	69,348	75,923
TOTAL ASSETS	5,180,221	4,767,068
Liabilities
Unpaid losses and settlement expenses	2,446,025	2,315,637
Unearned premiums	892,326	785,085
Reinsurance balances payable	71,507	61,100
Funds held	101,446	101,144
Income taxes-current	3,757
Debt	100,000	199,863
Accrued expenses	108,880	94,869
Other liabilities	42,766	32,029
TOTAL LIABILITIES	3,766,707	3,589,727
Shareholders' Equity
Common stock ($0.01 par value) (Shares authorized - 200,000,000) (68,570,261 shares issued and 45,640,047 shares outstanding in 2023) (68,399,966 shares issued and 45,469,752 shares outstanding in 2022)	686	684
Paid-in capital	362,345	352,391
Accumulated other comprehensive earnings	(166,303)	(229,076)
Retained earnings	1,609,785	1,446,341
Deferred compensation	13,539	12,015
Treasury shares, at cost (22,930,214 shares in 2023 and 2022)	(406,538)	(405,014)
TOTAL SHAREHOLDERS' EQUITY	1,413,514	1,177,341
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 5,180,221	$ 4,767,068