Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash Flows From Operating Activities
Net income (loss)	$ (112,706)	$ 14,820	$ 27,650
Less net income (loss) from discontinued operations, net of taxes	0	0	(1,912)
Adjustments to reconcile net income to net cash provided by operating activities
Net accretion of bond premium	10,444	9,372	8,788
Depreciation and amortization	6,656	11,191	5,174
Goodwill impairment	15,091	0	0
Stock-based compensation expense	4,992	6,152	5,249
Net realized investment (gains) losses	32,395	(53,779)	20,179
Net cash flows from trading investments	72,753	1,415	22,514
Deferred income tax benefit	(17,468)	10,148	(16,220)
Changes in:
Accrued investment income	567	592	(1,933)
Premiums receivable	40,340	(10,807)	(18,312)
Deferred policy acquisition costs	7,198	(1,496)	(4,694)
Reinsurance receivables	(88,171)	(11,032)	1,857
Prepaid reinsurance premiums	(3,415)	(2,487)	(3,314)
Income taxes receivable	(47,004)	(4,155)	(9,004)
Other assets	(7,291)	(11,972)	(1,524)
Losses, claims and loss settlement expenses	156,377	109,271	88,300
Unearned premiums	(40,317)	12,244	27,527
Accrued expenses and other liabilities	(6,129)	15,659	(12,319)
Deferred income taxes	7,521	(110)	(10,746)
Other, net	9,602	(1,274)	9,847
Cash from operating activities - continuing operations	154,141	78,932	111,369
Cash from operating activities - discontinued operations	0	0	4,024
Cash from operating activities - gain on sale of discontinued operations	0	0	(34,851)
Total adjustments	154,141	78,932	80,542
Net cash provided by operating activities	41,435	93,752	110,104
Cash Flows From Investing Activities
Proceeds from sale of available-for-sale investments	50,744	41,760	132,250
Proceeds from call and maturity of available-for-sale investments	318,981	265,515	122,250
Proceeds from short-term and other investments	6,494	4,397	9,303
Proceeds from sale of discontinued operations	0	0	276,055
Purchase of available-for-sale investments	(438,035)	(213,437)	(507,380)
Purchase of mortgage loans	(5,564)	(16,933)	(25,853)
Purchase of short-term and other investments	(6,629)	(44,375)	(7,119)
Net purchases and sales of property and equipment	(18,862)	(32,426)	(33,053)
Cash from investing activities - continuing operations	(92,871)	4,501	(33,547)
Cash from investing activities - discontinued operations	0	0	14,343
Net cash provided by (used in) investing activities	(92,871)	4,501	(19,204)
Cash Flows From Financing Activities
Borrowings of long-term debt	50,000	0	0
Payment of cash dividends	(28,526)	(32,662)	(105,408)
Repurchase of common stock	(2,741)	(11,700)	(5,404)
Issuance of common stock	(71)	2,377	7,171
Cash from financing activities - continued operations	18,662	(41,985)	(103,641)
Cash from financing activities - discontinued operations	0	0	(11,547)
Net cash provided by (used in) financing activities	18,662	(41,985)	(115,188)
Net Change in Cash and Cash Equivalents	(32,774)	56,268	(24,288)
Less: decrease in cash and cash equivalents - discontinued operations	0	0	(6,820)
Net increase (decrease) in cash and cash equivalents - continuing operations	(32,774)	56,268	(31,108)
Cash and Cash Equivalents at Beginning of Year - Continuing Operations	120,722	64,454	95,562
Cash and Cash Equivalents at End of Year - Continuing Operations	$ 87,948	$ 120,722	$ 64,454