Condensed Consolidated Statements of Income (Loss) and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues
Gross written premiums	$ 301,639	$ 380,003	$ 585,480	$ 707,337
Ceded written premiums	(135,882)	(140,093)	(285,069)	(259,686)
Net written premiums	165,757	239,910	300,411	447,651
Change in net unearned premiums	(16,942)	(40,796)	(5,678)	(58,385)
Net earned premiums	148,815	199,114	294,733	389,266
Net investment income	15,350	17,535	36,186	36,966
Net realized and unrealized gains (losses) on investments	21,593	1,063	(36,814)	2,688
Other income	991	2,662	2,928	5,581
Total revenues	186,749	220,374	297,033	434,501
Expenses
Losses and loss adjustment expenses	98,746	147,053	195,602	286,980
Other operating expenses	43,397	44,843	95,018	90,595
Other expenses	1,732	683	1,732	683
Interest expense	2,965	2,684	5,841	5,492
Amortization of intangible assets	149	149	298	298
Total expenses	146,989	195,412	298,491	384,048
Income (loss) before taxes	39,760	24,962	(1,458)	50,453
Income tax expense (benefit)	4,146	4,655	(257)	7,418
Net income (loss)	35,614	20,307	(1,201)	43,035
Other comprehensive income:
Net unrealized gains, net of taxes of $6,927 and $5,535 in 2020 and $1,865 and $3,311 in 2019	46,313	20,732	42,394	40,992
Total comprehensive income	$ 81,927	$ 41,039	$ 41,193	$ 84,027
Per share data:
Basic earnings per share (in dollars per share)	$ 1.17	$ 0.67	$ (0.04)	$ 1.43
Diluted earnings per share (in dollars per share)	1.16	0.66	(0.04)	1.41
Dividend declared per share (in dollars per share)	$ 0.30	$ 0.30	$ 0.60	$ 0.60
Weighted-average common shares outstanding:
Basic (in shares)	30,529,241	30,246,420	30,502,774	30,153,426
Diluted (in shares)	30,782,609	30,689,074	30,502,774	30,581,205