Net Income (Loss) Per Share (Tables)

3 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Components and Calculation of Basic and Diluted Net Income (Loss) Per Share

The following table presents the components and calculations of basic and diluted net income (loss) per share (in millions, except per share amounts; certain amounts may not recalculate due to rounding):

	Three Months Ended December 31,
	2021			2020
Numerator:
Net income (loss) from continuing operations	$	68.1		$	47.4
Dividends on Preferred Stock		(6.0	)		(6.0	)
Undistributed income from continuing operations allocated to participating securities		(7.5	)		—
Net income (loss) from continuing operations attributable to common stockholders - Basic and Diluted		54.6			41.4
Net income (loss) from discontinued operations attributable to common stockholders - Basic and Diluted		(0.1	)		(267.9	)
Net income (loss) attributable to common stockholders - Basic and Diluted	$	54.5		$	(226.5	)
Denominator:
Weighted-average common shares outstanding - Basic		70.3			69.2
Effect of common share equivalents		1.2			0.8
Weighted-average common shares outstanding - Diluted		71.5			70.0
Net income (loss) per share:
Basic - Continuing operations	$	0.78		$	0.60
Basic - Discontinued operations		—			(3.87	)
Basic net income (loss) per share	$	0.78		$	(3.27	)
Diluted - Continuing operations	$	0.76		$	0.59
Diluted - Discontinued operations		—			(3.83	)
Diluted net income (loss) per share	$	0.76		$	(3.24	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following table includes the number of shares that may be dilutive common shares in the future (in millions). These shares were not included in the computation of diluted net income (loss) per share because the effect was either anti-dilutive or the requisite performance conditions were not met:

	Three Months Ended December 31,
	2021		2020
Stock options		0.2		1.3
Preferred Stock		9.7		9.7