Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Consolidated Statements of Operations [Abstract]
Gross premiums written	$ 224,178	$ 169,112	$ 629,730	$ 495,836
Ceded premiums written	(96,405)	(81,100)	(260,711)	(226,545)
Net premiums written	127,773	88,012	369,019	269,291
Change in unearned premiums	(15,274)	850	(50,991)	2,496
Net premiums earned	112,499	88,862	318,028	271,787
Investment income, net of expenses	5,050	4,860	15,573	13,706
Investment (losses) gains, net	(1,342)	6,980	17,412	2,678
Finance charges	1,778	1,347	5,309	3,548
Commission and fees	287	869	944	2,604
Other income	13	28	43	89
Total revenues	118,285	102,946	357,309	294,412
Losses and loss adjustment expenses	78,548	64,245	221,861	191,568
Operating expenses	31,074	24,829	87,656	78,402
Interest expense	1,386	1,180	3,879	3,335
Amortization of intangible assets	617	617	1,851	1,851
Total expenses	111,625	90,871	315,247	275,156
Income before tax	6,660	12,075	42,062	19,256
Income tax expense	1,373	2,390	8,721	3,834
Net income	$ 5,287	$ 9,685	$ 33,341	$ 15,422
Net income per share:
Basic (in dollars per share)	$ 0.29	$ 0.54	$ 1.84	$ 0.85
Diluted (in dollars per share)	$ 0.29	$ 0.53	$ 1.82	$ 0.85