Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash Flows From Operating Activities
Net income	$ 27,650	$ 51,023	$ 49,904
Less net income (loss) from discontinued operations, net of taxes	(1,912)	6,153	786
Adjustments to reconcile net income to net cash provided by operating activities
Net accretion of bond premium	8,788	8,872	7,049
Depreciation and amortization	5,174	4,574	6,035
Stock-based compensation expense	5,249	4,808	3,696
Net realized investment (gains) losses	20,179	(4,055)	(4,947)
Net cash flows from trading investments	22,514	(1,909)	(2,390)
Deferred income tax benefit	(16,220)	(5,921)	3,331
Changes in:
Accrued investment income	(1,933)	(224)	(874)
Premiums receivable	(18,312)	(22,311)	(29,685)
Deferred policy acquisition costs	(4,694)	5,260	(2,815)
Reinsurance receivables	1,857	(487)	4,206
Prepaid reinsurance premiums	(3,314)	33	8
Income taxes receivable	(9,004)	8,254	(14,285)
Other assets	(1,524)	(2,465)	758
Losses, claims and loss settlement expenses	88,300	100,287	120,001
Unearned premiums	27,527	21,589	28,830
Accrued expenses and other liabilities	(12,319)	(423)	(7,605)
Income taxes payable	0	0	(5,365)
Deferred income taxes	(10,746)	(25,883)	1,495
Other, net	9,847	3,378	(9,943)
Cash from operating activities - continuing operations	111,369	93,377	97,500
Cash from operating activities - discontinued operations	4,024	31,847	67,766
Cash from operating activities - gain on sale of discontinued operations	(34,851)	0	0
Total adjustments	80,542	125,224	165,266
Net cash provided by operating activities	110,104	170,094	214,384
Cash Flows From Investing Activities
Proceeds from sale of available-for-sale investments	132,250	7,404	1,968
Proceeds from call and maturity of held-to-maturity investments	0	150	493
Proceeds from call and maturity of available-for-sale investments	122,250	191,521	323,653
Proceeds from short-term and other investments	9,303	6,032	1,947
Proceeds from sale of discontinued operations	276,055	0	0
Purchase of held-to-maturity investments	0	(150)	(42)
Purchase of available-for-sale investments	(507,380)
Purchase of available-for-sale investments		(260,957)	(443,953)
Purchase of short-term and other investments	(32,972)	(6,428)	(4,155)
Net purchases and sales of property and equipment	(33,053)	(17,158)	(7,600)
Cash from investing activities - continuing operations	(33,547)	(79,586)	(127,689)
Cash from investing activities - discontinued operations	14,343	17,601	15,286
Net cash used in investing activities	(19,204)	(61,985)	(112,403)
Cash Flows From Financing Activities
Payment of cash dividends	(105,408)	(27,337)	(24,591)
Repurchase of common stock	(5,404)	(29,784)	(3,746)
Issuance of common stock	7,171	4,828	9,922
Tax impact from issuance of common stock	0	0	(816)
Cash from financing activities - continued operations	(103,641)	(52,293)	(19,231)
Cash from financing activities - discontinued operations	(11,547)	(55,256)	(78,346)
Net cash used in financing activities	(115,188)	(107,549)	(97,577)
Net Change in Cash and Cash Equivalents	(24,288)	560	4,404
Less: decrease (increase) in cash and cash equivalents - discontinued operations	(6,820)	5,808	(4,706)
Net increase (decrease) in cash and cash equivalents - continuing operations	(31,108)	6,368	(302)
Cash and Cash Equivalents at Beginning of Year - Continuing Operations	95,562	89,194	89,496
Cash and Cash Equivalents at End of Year - Continuing Operations	$ 64,454	$ 95,562	$ 89,194