Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
REVENUE:
Gross premiums written	$ 168,842	$ 135,956
Decrease in gross unearned premiums	13,223	10,546
Gross premiums earned	182,065	146,502
Ceded premiums earned	(74,882)	(45,132)
Net premiums earned	107,183	101,370
Investment income	2,951	2,396
Net realized gains (losses)	(351)	270
Other revenue	12,850	3,525
Total revenue	122,633	107,561
EXPENSES:
Losses and loss adjustment expenses	63,333	64,258
Policy acquisition costs	35,436	27,032
Operating expenses	5,872	3,954
General and administrative expenses	11,333	7,933
Interest expense	759	75
Total expenses	116,733	103,252
Income before other income	5,900	4,309
Other income	38	21
Income before income taxes	5,938	4,330
Provision for income taxes	2,039	1,379
Net income	3,899	2,951
OTHER COMPREHENSIVE INCOME:
Change in net unrealized gains (losses) on investments	3,731	6,380
Reclassification adjustment for net realized investment (gains) losses	351	(270)
Income tax benefit (expense) related to items of other comprehensive income	(1,542)	(2,361)
Total comprehensive income	$ 6,439	$ 6,700
Weighted-average shares outstanding
Weighted-average shares outstanding (in shares)	21,471,185	21,346,701
Weighted-average diluted shares (in shares)	21,688,733	21,537,496
Earnings Per Share
Basic earnings per share (in usd per share)	$ 0.18	$ 0.14
Diluted earnings per share (in usd per share)	0.18	0.14
Dividends declared per share (in usd per share)	$ 0.06	$ 0.05