Earnings (Loss) Per Share (Tables)

12 Months Ended

Dec. 31, 2021

Schedule of Earnings Per Share, Basic and Diluted

The table below presents the computation of basic and diluted earnings (loss) per share ($ and shares in millions, except per share amounts):


	Year Ended December 31,
		2021			2020		2019
Numerator:
Income from continuing operations, net of tax		$	263.5		$	42.5	184.1
Income (loss) from discontinued operations, net of tax		$	77.0		$	(9.2)	$	33.5
Net income		$	340.5		$	33.3	$	217.6

Denominator:
Weighted-average common shares outstanding used in basic earnings (loss) per share		161.2			159.6		136.2
Incremental common shares from:
Assumed exercise of dilutive options and vesting of dilutive restricted stock units		4.4			2.2		0.2
Assumed conversion of the Notes		12.0			2.3		—
Weighted average common shares outstanding used in diluted earnings (loss) per share		177.6			164.1		136.4

Earnings (loss) per share:
Earnings from continuing operations - basic		$	1.63		$	0.27	$	1.35
Earnings from continuing operations - diluted		$	1.48		$	0.26	$	1.35

Earnings (loss) from discontinued operations - basic		$	0.48		$	(0.06)	$	0.25
Earnings (loss) from discontinued operations - diluted		$	0.43		$	(0.06)	$	0.25

Earnings - basic		$	2.11		$	0.21	$	1.60
Earnings - diluted		$	1.92	*	$	0.20	$	1.60
* Earnings per share is computed independently for earnings per share from continuing operations and earnings (loss) per share from discontinued operations. The sum of earnings per share from continuing operations and earnings (loss) per share from discontinued operations does not equal earnings per share due to rounding.

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following table presents the number of outstanding securities not included in the computation of diluted income per share, because their effect was anti-dilutive (in millions):


	Year Ended December 31,
		2021	2020	2019
Stock-based awards		1.2	4.1	0.3

Total		1.2	4.1	0.3