CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenue
Net earned premium	$ 95.7	$ 86.6	$ 269.4	$ 231.3
Ceding commission income	24.0	16.7	61.5	51.4
Net investment income	8.9	7.0	24.6	17.6
Commission and other income	8.0	4.2	22.2	14.0
Total revenue	136.6	114.5	377.7	314.3
Expense
Loss and loss adjustment expense, net	77.9	75.9	214.3	215.4
Other insurance expense	19.8	15.1	55.9	43.7
Sales and marketing	51.4	24.4	118.6	77.4
Technology development	21.9	21.8	64.0	67.7
General and administrative	31.4	36.9	91.0	100.3
Total expense	202.4	174.1	543.8	504.5
Loss before income taxes	(65.8)	(59.6)	(166.1)	(190.2)
Income tax expense	1.9	1.9	6.1	4.3
Net loss	(67.7)	(61.5)	(172.2)	(194.5)
Other comprehensive loss, net of tax
Unrealized gain on investments in fixed maturities	5.4	2.9	7.4	10.1
Foreign currency translation adjustment	3.1	(1.0)	1.5	(1.6)
Comprehensive loss	$ (59.2)	$ (59.6)	$ (163.3)	$ (186.0)
Per share data:
Net loss per share attributable to common stockholders—basic (usd per share)	$ (0.95)	$ (0.88)	$ (2.44)	$ (2.80)
Net loss per share attributable to common stockholders—diluted (usd per share)	$ (0.95)	$ (0.88)	$ (2.44)	$ (2.80)
Weighted average common shares outstanding—basic (in shares)	71,138,070	69,753,576	70,716,140	69,542,342
Weighted average common shares outstanding—diluted (in shares)	71,138,070	69,753,576	70,716,140	69,542,342