Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net income	$ 99,601	$ 83,195	$ 62,387
Adjustments to reconcile net income to net cash provided by operating activities:
Investment amortization, net	4,922	5,273	6,962
Fixed Asset depreciation, net	5,485	5,467	5,037
Stock based compensation	6,030	6,579	5,166
Provision (credit) for deferred income taxes	4,757	(5,600)	2,085
Net realized gains on investments	(2,976)	(3,226)	(6,036)
Net impairment losses on investments	889	228	256
Earnings from partnership investments	(904)	(650)	(2,082)
Change in net unrealized gains on equity investments	(21,454)	16,324
Changes in assets and liabilities:
Accounts receivable	(3,307)	587	(2,953)
Accrued investment income	16	456	(18)
Receivable from reinsurers	(11,602)	(14,228)	5,367
Ceded unearned premiums	(1,208)	(1,799)	(3,590)
Deferred policy acquisition costs	(932)	(1,153)	(1,206)
Taxes recoverable	(1,003)	908	(908)
Other assets	(1,864)	2,565	(5,400)
Loss and loss adjustment expense reserves	25,847	10,665	13,733
Unearned premium reserves	6,839	7,123	10,224
Taxes payable	(6,090)	6,090	(1,110)
Accounts payable and accrued liabilities	3,395	10,678	(6,333)
Payable to reinsurers	691	(1,581)	299
Other liabilities	5,324	(210)	160
Net cash provided by operating activities	112,456	127,691	82,040
Cash flows from investing activities:
Fixed maturities purchased	(219,875)	(304,654)	(205,226)
Equity securities purchased	(28,586)	(66,832)	(27,440)
Other invested assets purchased	(14,794)	(6,648)	(7,492)
Proceeds from sales and paydowns of fixed maturities	135,119	217,221	151,071
Proceeds from maturities, redemptions, and calls of fixed maturities	58,676	63,628	37,868
Proceed from sales of equity securities	23,966	18,654	34,664
Proceeds from other invested assets redeemed	2,124	6,810	7,589
Fixed assets purchased	(9,594)	(11,183)	(5,958)
Net cash used for investing activities	(52,964)	(83,004)	(14,924)
Cash flows from financing activities:
Dividends paid to shareholders	(52,667)	(48,813)	(45,460)
Net cash used for financing activities	(52,667)	(48,813)	(45,460)
Net increase (decrease) in cash and cash equivalents	6,825	(4,126)	21,656
Cash and cash equivalents at beginning of year	37,582	41,708	20,052
Cash and cash equivalents at end of period	44,407	37,582	41,708
Supplemental disclosure of cash flow information:
Federal and state income taxes	26,780	20,115	23,721
Interest	$ 75	$ 75	$ 75