Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income	$ 9,483	$ 14,291
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation	3,860	2,948
Net (accretion of discounts) amortization of premiums on investments in fixed-maturity securities	(60)	127
Depreciation and amortization	4,359	4,702
Deferred income tax expense	1,527	592
Net realized investment losses	809	505
Net unrealized investment losses (gains)	1,921	(6,619)
Credit loss expense	177
Loss from unconsolidated joint venture	28	54
Net loss (income) from limited partnership interests	2,747	(832)
Distributions received from limited partnership interests	578	3,616
Loss on repurchases of convertible senior notes	150	0
Foreign currency remeasurement loss (gain)	84	(5)
Other non-cash items	31	271
Changes in operating assets and liabilities:
Accrued interest and dividends receivable	703	110
Income taxes	(2,110)	(540)
Premiums receivable	(7,670)	(9,731)
Prepaid reinsurance premiums	(9,167)	(11,611)
Reinsurance recoverable	32,248	45,831
Deferred policy acquisition costs	(7,527)	(4,344)
Other assets	5,235	(1,393)
Losses and loss adjustment expenses	(3,535)	(53,344)
Unearned premiums	48,071	35,697
Advance premiums	13,619	7,460
Assumed reinsurance balances payable	3	(14)
Accrued expenses and other liabilities	14,424	1,063
Net cash provided by operating activities	109,988	28,834
Cash flows from investing activities:
Investments in limited partnership interests	(1,470)	(1,751)
Distributions received from limited partnership interests	314	470
Purchase of property and equipment	(5,349)	(1,313)
Purchase of real estate investments	(2,522)	(9,892)
Purchase of fixed-maturity securities	(28,281)	(75,727)
Purchase of equity securities	(20,392)	(15,778)
Purchase of short-term and other investments		(684)
Proceeds from sales of fixed-maturity securities	78,186	2,985
Proceeds from calls, repayments and maturities of fixed-maturity securities	52,594	47,788
Proceeds from sales of equity securities	12,455	32,841
Proceeds from sales, redemptions and maturities of short-term and other investments	460	66,897
Net cash provided by investing activities	85,995	45,836
Cash flows from financing activities:
Cash dividends paid	(6,315)	(6,581)
Cash dividends received under share repurchase forward contract	153	153
Proceeds from revolving credit facility	14,000	9,500
Proceeds from exercise of common stock options	63	63
Proceeds from issuance of long-term debt	10,000
Repayment of long-term debt	(9,496)	(90,647)
Repurchases of convertible senior notes	(4,459)
Repurchases of common stock	(1,326)	(1,023)
Repurchases of common stock under share repurchase plan	(5,141)	(8,006)
Debt issuance costs	(165)	(459)
Net cash used in financing activities	(2,686)	(97,000)
Effect of exchange rate changes on cash	(51)	25
Net increase (decrease) in cash, cash equivalents, and restricted cash	193,246	(22,305)
Cash, cash equivalents, and restricted cash at beginning of period	229,918	240,158
Cash, cash equivalents, and restricted cash at end of period	423,164	217,853
Supplemental disclosure of cash flow information:
Cash paid for income taxes	3,902	5,254
Cash paid for interest	3,737	5,453
Non-cash investing and financing activities:
Unrealized (loss) gain on investments in available-for-sale securities, net of tax	(782)	3,208
Receivable from sales of equity securities	232
Receivable from maturities of fixed-maturity securities		$ 2,000
Payable on purchases of equity securities	$ 203