Consolidated Statements of Income and Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues:
Gross written premiums	$ 1,141,558	$ 881,868	$ 535,175
Ceded written premiums	(731,531)	(524,575)	(223,443)
Net written premiums	410,027	357,293	311,732
Change in unearned premiums	(64,114)	(40,827)	(77,906)
Net earned premiums	345,913	316,466	233,826
Net investment income	23,705	13,877	9,080
Net realized and unrealized gains (losses) on investments	2,941	(7,529)	1,277
Commission and other income	3,367	4,272	3,608
Total revenues	375,926	327,086	247,791
Expenses:
Losses and loss adjustment expenses	72,592	78,672	41,457
Acquisition expenses, net of ceding commissions and fronting fees	107,745	110,771	95,433
Other underwriting expenses	88,172	69,219	53,723
Interest expense	3,775	873	40
Total expenses	272,284	259,535	190,653
Income before income taxes	103,642	67,551	57,138
Income tax expense	24,441	15,381	11,291
Net income	79,201	52,170	45,847
Other comprehensive income, net:
Net unrealized gains (losses) on securities available for sale	12,524	(41,827)	(7,934)
Total comprehensive income	$ 91,725	$ 10,343	$ 37,913
Per Share Data:
Basic earnings per share (in dollars per share)	$ 3.19	$ 2.07	$ 1.8
Diluted earnings per share (in dollars per share)	$ 3.13	$ 2.02	$ 1.76
Weighted-average common shares outstanding:
Basic (in shares)	24,822,004	25,243,397	25,459,514
Diluted (in shares)	25,327,091	25,796,008	26,111,904