Geographical Breakdown of Gross Written Premium (Tables)

12 Months Ended

Dec. 31, 2023

Segment Reporting [Abstract]

Gross written premium by state

Gross written premium by jurisdiction is as follows ($ in millions):

	Years ended December 31,
	2023				2022				2021
Jurisdiction	Amount		% of GWP		Amount		% of GWP		Amount		% of GWP
California	$	191.6	25.9	%	$	142.0	25.6	%	$	93.9	25.0	%
Texas	117.5		15.9	%	91.3		16.4	%	72.5		19.3	%
New York	80.8		10.9	%	66.0		11.9	%	47.3		12.6	%
New Jersey	37.6		5.1	%	28.3		5.1	%	16.7		4.4	%
Illinois	35.3		4.8	%	26.3		4.7	%	15.7		4.2	%
Washington	25.9		3.5	%	15.8		2.8	%	5.4		1.4	%
Georgia	22.6		3.1	%	19.8		3.6	%	16.5		4.4	%
Colorado	22.0		3.0	%	15.8		2.8	%	9.2		2.4	%
Pennsylvania	19.7		2.7	%	14.4		2.6	%	9.7		2.6	%
Oregon	18.8		2.5	%	13.0		2.3	%	6.9		1.8	%
All others	166.6		22.6	%	123.0		22.2	%	81.9		21.8	%
	$	738.4	100.0	%	$	555.7	100.0	%	$	375.7	100.0	%