Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating activities
Net income (loss)	$ 7,347	$ (34,075)	$ 18,323
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Change in accounts receivable and unearned premium	(3,835)	(3,904)	2,678
Change in accrued investment income	(524)	(199)	(278)
Change in reinsurance recoverable on paid losses	(19,083)	956	(446)
Change in losses and loss expenses reserves, net of reinsurance	100,648	117,027	47,229
Change in other assets, other liabilities and current income taxes	10,140	8,204	49,221
Amortization of net policy acquisition costs	55,802	54,981	47,387
Net policy acquisition costs deferred	(57,731)	(55,940)	(51,824)
Provision for deferred income tax expense (benefit)	(51)	(18,794)	(3,866)
Bond amortization	(725)	184	1,865
Loss on sale of property and equipment	0	0	235
Depreciation	6,052	6,102	5,752
Net realized (gains) losses on investments	(12,889)	25,691	(19,686)
Compensation expense related to restricted stock	1,529	475	1,154
Net cash provided by operating activities	86,680	100,708	97,744
Investing activities
Purchases of fixed income securities and equity securities	(423,544)	(415,326)	(436,932)
Purchases of limited partnership interests	0	(450)	(1,097)
Distributions from limited partnerships	33,396	6,869	19,230
Proceeds from maturities	84,387	64,035	131,623
Proceeds from sales of fixed income securities	139,310	241,429	148,652
Proceeds from sales of equity securities	21,621	149,195	69,756
Net sales of short-term investments	0	0	500
Purchase of insurance company-owned life insurance	0	(10,000)	0
Purchase of commercial mortgage loans	(7,082)	(6,672)	0
Proceeds from commercial mortgage loans	1,972	0	0
Purchases of property and equipment	(1,953)	(5,439)	(6,661)
Proceeds from disposals of property and equipment	3	10	582
Net cash provided by (used in) investing activities	(151,890)	23,651	(74,347)
Financing activities
Dividends paid to shareholders	(5,857)	(16,835)	(16,302)
Repurchase of common shares	(11,501)	(4,596)	(1,880)
Net cash used in financing activities	(17,358)	(21,431)	(18,182)
Effect of foreign exchange rates on cash and cash equivalents	645	(830)	522
Increase (decrease) in cash, cash equivalents and restricted cash and cash equivalents	(81,923)	102,098	5,737
Cash, cash equivalents and restricted cash and cash equivalents at beginning of period	170,811	68,713	62,976
Cash, cash equivalents and restricted cash and cash equivalents at end of period	88,888	170,811	68,713
Supplemental Disclosures of Cash Flow Information
Cash paid (refunds received) for income taxes	(1,186)	9,500	0
Cash paid for interest	$ 723	$ 504	$ 456