Underwriting information (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Gross Written Premiums by Underwriting Division

Gross written premiums by underwriting division are presented below:

	Year Ended December 31,
	2019		2018		2017
	(in thousands)
Commercial:
Construction	$	71,035	$	50,879	$	48,587
Small business	63,181		44,368		34,896
Excess casualty	51,225		37,398		30,260
Commercial property	29,115		9,166		5,609
Product liability	26,333		20,049		14,288
Allied health	23,962		16,815		10,645
General casualty	23,279		17,625		15,865
Professional liability	20,029		16,717		12,956
Life sciences	17,821		14,505		12,408
Energy	15,371		15,586		13,544
Management liability	14,820		8,161		4,123
Health care	5,963		5,725		6,235
Environmental	5,179		2,205		2,046
Inland marine	3,467		2,046		967
Commercial insurance	1,674		1,096		816
Public entity	580		1,193		1,265
Total commercial	373,034		263,534		214,510
Personal:
Personal insurance	16,660		12,004		8,681
Total personal	16,660		12,004		8,681
Total	$	389,694	$	275,538	$	223,191