Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2020

Net Loss Per Share

Basic and diluted net loss per share

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

	Year Ended December 31,
	2020		2019		2018
Numerator:
Net loss attributable to common stockholders (in millions)	$	(122.3)	$	(108.5)	$	(52.9)
Denominator:
Weighted average common shares outstanding — basic and diluted		33,654,828		11,124,397		10,931,776
Net loss per share attributable to common stockholders — basic and diluted	$	(3.63)	$	(9.75)	$	(4.84)