Basic EPS amounts are calculated by dividing net income (loss) allocated to common stockholders by the weighted average number of common shares outstanding. Diluted EPS amounts assume the issuance of common stock for all potentially dilutive common shares outstanding.

The following table shows the basic and diluted earnings (loss) per share for 2020, 2019, and 2018:


	For the year ended December 31, 2020
	Net (Loss)			Shares (in millions)	Per Share
Net loss	$	(123.3)
Amount allocated to common stockholders	100		%




Basic and Diluted EPS:(1)	$	(123.3)		89.5	$	(1.38)


	For the year ended December 31, 2019
	Net (Loss)			Shares (in millions)	Per Share
Net loss	$	(80.8)
Amount allocated to common stockholders	100		%




Basic and Diluted EPS:(1)	$	(80.8)		88.8	$	(0.91)


	For the year ended December 31, 2018
	Net Income			Shares (in millions)	Per Share
Net income	$	(66.2)
Amount allocated to common stockholders	100		%

Basic and Diluted EPS:(1)	$	(66.2)		87.6	$	(0.76)


Securities excluded from the calculation of diluted EPS (in millions):	2020(1)	2019(1)	2018(1)
Share-based compensation	1.3	0.3	1.4

(1)In periods when we report a net loss, all share-based compensation awards are excluded from the calculation of diluted weighted average shares outstanding because of their anti-dilutive effect on earnings (loss) per share.