Underwriting information (Tables)

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Gross Written Premiums by Underwriting Division

Gross written premiums by underwriting division are presented below:

	Year Ended December 31,
	2018		2017		2016
	(in thousands)
Commercial:
Construction	$	50,879	$	48,587	$	42,234
Small business	44,368		34,896		27,333
Excess casualty	26,450		20,260		17,799
Energy	25,815		22,898		16,157
Product liability	20,049		14,288		10,140
General casualty	17,625		15,865		16,162
Allied health	16,815		10,645		9,344
Professional liability	16,717		12,956		14,212
Life sciences	14,505		12,408		10,897
Commercial property	9,166		5,609		4,835
Management liability	8,161		4,123		2,244
Health care	5,725		6,235		6,594
Environmental	2,924		2,692		1,931
Inland marine	2,046		967		910
Public entity	1,193		1,265		875
Commercial insurance	1,096		816		459
Total commercial	263,534		214,510		182,126
Personal:
Personal insurance	12,004		8,681		6,352
Total personal	12,004		8,681		6,352
Total	$	275,538	$	223,191	$	188,478