Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash Flows From Operating Activities
Net income	$ 44,521	$ 45,759
Less net loss from discontinued operations, net of taxes	0	(1,912)
Adjustments to reconcile net income to net cash provided by operating activities
Net accretion of bond premium	2,763	2,178
Depreciation and amortization	1,166	1,159
Stock-based compensation expense	2,688	1,281
Net realized investment (gains) losses	(26,713)	7,864
Net cash flows from equity and trading investments	1,235	383
Deferred income tax benefit	4,863	(3,879)
Changes in:
Accrued investment income	(709)	(1,242)
Premiums receivable	(18,361)	(10,494)
Deferred policy acquisition costs	(3,095)	(1,734)
Reinsurance receivables	4,720	(312)
Prepaid reinsurance premiums	(443)	(253)
Income taxes receivable	10,647	6,031
Other assets	(21,034)	104
Losses and loss settlement expenses	(8,987)	(4,202)
Unearned premiums	17,795	11,521
Accrued expenses and other liabilities	1,275	(6,925)
Income taxes payable	0	17,581
Deferred income taxes	0	(14,039)
Other, net	(1,628)	1,708
Cash from operating activities - continuing operations	(33,818)	6,730
Cash from operating activities - discontinued operations	0	4,024
Cash from operating activities - gain on sale of discontinued operations	0	(34,851)
Total adjustments	(33,818)	(24,097)
Net cash provided by operating activities	10,703	23,574
Cash Flows From Investing Activities
Proceeds from sale of available-for-sale investments	36,490	0
Proceeds from call and maturity of available-for-sale investments	38,740	30,320
Proceeds from short-term and other investments	1,027	3,078
Proceeds from the sale of discontinued operations	0	276,055
Purchase of available-for-sale investments	(25,007)	(93,115)
Purchase of short-term and other investments	(11,807)	(676)
Net purchases and sales of property and equipment	(12,017)	(3,851)
Cash from investing activities - continuing operations	27,426	211,811
Cash from investing activities - discontinued operations	0	14,343
Net cash provided by investing activities	27,426	226,154
Cash Flows From Financing Activities
Payment of cash dividends	(7,797)	(6,960)
Repurchase of common stock	0	(5,404)
Issuance of common stock	750	2,293
Cash from financing activities - continuing operations	(7,047)	(10,071)
Cash from financing activities - discontinued operations	0	(11,547)
Net cash used in financing activities	(7,047)	(21,618)
Net Change in Cash and Cash Equivalents	31,082	228,110
Less: increase in cash and cash equivalents - discontinued operations	0	(6,820)
Net increase in cash and cash equivalents - continuing operations	31,082	221,290
Cash and Cash Equivalents at Beginning of Period - Continuing Operations	64,454	95,562
Cash and Cash Equivalents at End of Period - Continuing Operations	$ 95,536	$ 316,852