Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Consolidated Statements of Operations [Abstract]
Gross premiums written	$ 187,316	$ 153,505
Ceded premiums written	(69,913)	(62,072)
Net premiums written	117,403	91,433
Change in unearned premiums	(18,373)	514
Net premiums earned	99,030	91,947
Investment income, net of expenses	5,111	4,440
Investment gains (losses), net	11,937	(4,835)
Finance charges	1,734	1,040
Commission and fees	293	703
Other income	16	46
Total revenues	118,121	93,341
Losses and loss adjustment expenses	70,087	63,675
Operating expenses	27,246	27,213
Interest expense	1,253	1,027
Amortization of intangible assets	617	617
Total expenses	99,203	92,532
Income before tax	18,918	809
Income tax expense	3,893	162
Net income	$ 15,025	$ 647
Net income per share:
Basic	$ 0.83	$ 0.04
Diluted	$ 0.83	$ 0.04