Net Income (loss) per share (Tables)

9 Months Ended

Sep. 30, 2022

Earnings Per Share [Abstract]

Basic and Diluted Net Income per Share

The following table presents the calculation of basic and diluted net income (loss) per share:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
Numerator:
Net income (loss)	$	(75.7)	$	(32.7)	$	(135.8)	$	41.6
Denominator:
Weighted-average number of shares—basic	49.9		53.7		50.2		53.6
Dilutive securities—equity awards	—		—		—		0.7
Weighted-average number of shares—diluted	49.9		53.7		50.2		54.3
Net income (loss) per share - basic	$	(1.52)	$	(0.61)	$	(2.71)	$	0.78
Net income (loss) per share - diluted	$	(1.52)	$	(0.61)	$	(2.71)	$	0.77

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following table presents the share-based awards that are not considered in the diluted income (loss) per share calculation generally because the exercise price of the awards was greater than the average per share closing price during the three and nine months ended September 30, 2022 and 2021:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2022	2021	2022	2021
Anti-dilutive stock awards	3.3	1.4	2.6	0.6