Net loss per share

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Net loss per share

oss per share

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

	Three Months Ended March 31,
	2020			2019
Numerator:
Net loss	$	(12.5	)	$	(26.0	)
Denominator:
Weighted-average number of shares—basic	52.0			51.2
Dilutive securities—equity awards	—			—
Weighted-average number of shares—diluted	52.0			51.2
Net loss per share - basic	$	(0.24	)	$	(0.51	)
Net loss per share - diluted	$	(0.24	)	$	(0.51	)

Basic earnings (loss) per share is computed by dividing net loss by the weighted average number of shares of common stock outstanding during the period. Diluted earnings (loss) per share is computed using the treasury method by dividing net loss by the weighted average number of shares of common stock outstanding during the period, adjusted for the potential dilutive effect of other securities if such securities were converted or exercised and are not anti-dilutive. For the three months ended March 31, 2020 and 2019, approximately 0.7 million and 3.1 million stock options are not considered in the diluted net loss per share calculation because the exercise price of these options is greater than the average per share closing price during the three month period and their effect would be anti-dilutive.