Net Loss per Share (Tables)

9 Months Ended

Sep. 30, 2025

Earnings Per Share [Abstract]

Schedule of Basic and Diluted Net Loss Per Share

Basic and diluted net loss per share attributable to common stockholders was calculated as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2025		2024		2025		2024
Numerator:
Net loss attributable to common stockholders ($ in millions)	$	(37.5)	$	(67.7)	$	(143.8)	$	(172.2)
Denominator:
Weighted average common shares outstanding — basic and diluted	74,194,138		71,138,070		73,520,889		70,716,140
Net loss per share attributable to common stockholders — basic and diluted	$	(0.51)	$	(0.95)	$	(1.96)	$	(2.44)

Schedule of Antidilutive Potential Common Shares

The Company excluded the following potential common shares, presented based on amounts outstanding at each period end, from the computation of diluted net loss per share attributable to common stockholders for the periods indicated because including them would have had an anti-dilutive effect.

	September 30,
	2025	2024
Options to purchase common stock	8,019,341	10,347,561
Unvested restricted stock	3,538,323	4,322,912
Warrants for common stock (1)	412,969	412,969
Total	11,970,633	15,083,442

(1) Each outstanding warrant of Metromile assumed by the Company converted automatically into warrants denominated in the Company's common stock with the number of warrants and exercise price adjusted based on the exchange ratio of 0.05263.