Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues:
Gross premiums written	$ 142,201	$ 124,247
Net premiums written	123,416	107,870
Net premiums earned	122,089	108,002
Net investment income	7,219	11,404
Net realized investment gains (losses):
Other than temporary impairment losses on investments	(1,897)	0
Other net realized investment gains (losses)	12,287	(316)
Total net realized investment gains (losses)	10,390	(316)
Other income	488	554
Total revenues	140,186	119,644
Losses and Expenses:
Net losses and loss adjustment expenses	58,321	56,072
Acquisition costs and other underwriting expenses	49,743	45,003
Corporate and other operating expenses	3,205	9,260
Interest expense	5,023	4,861
Income before income taxes	23,894	4,448
Income tax expense (benefit)	4,294	(1,253)
Net income	$ 19,600	$ 5,701
Net income
Basic	$ 1.38	$ 0.41
Diluted	$ 1.37	$ 0.40
Weighted-average number of shares outstanding
Basic	14,153,918	14,055,022
Diluted	14,315,091	14,285,837
Cash dividends declared per share	$ 0.25	$ 0.25