Earnings Per Common Share (Tables)

9 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Schedule of Basic and Diluted Earnings Per Share

	Three Months Ended June 30,						Nine Months Ended June 30,
	2020			2019			2020		2019
Basic Earnings Per Common Share:
Net (Loss) Income	$	(92.3	)	$	(3.0	)	$	108.3	$	218.9
Less: Provision for preferred dividends		3.7			1.6			11.1		1.6
(Loss) income allocated to participating securities		(0.1	)		—			0.2		0.5
(Loss) income Available to Common Shareholders	$	(95.9	)	$	(4.6	)	$	97.0	$	216.8
Weighted Average Common Shares Outstanding (in millions)		51.2			50.7			51.1		50.6
Basic (Loss) Earnings Per Common Share	$	(1.87	)	$	(0.09	)	$	1.90	$	4.28
Diluted Earnings Per Common Share:
Net (Loss) Income	$	(92.3	)	$	(3.0	)	$	108.3	$	218.9
Less: Provision for preferred dividends		3.7			1.6			11.1		1.6
(Loss) income allocated to participating securities		(0.1	)		—			0.2		0.5
(Loss) Income Available to Common Shareholders	$	(95.9	)	$	(4.6	)	$	97.0	$	216.8
Weighted Average Common Shares Outstanding (in millions)		51.2			50.7			51.1		50.6
Dilutive Effect of Restricted Stock and Restricted Stock Units (in millions)*		—			—			0.1		0.2
Weighted Average Diluted Common Shares (in millions)		51.2			50.7			51.2		50.8
Diluted (Loss) Earnings Per Common Share	$	(1.87	)	$	(0.09	)	$	1.90	$	4.27
* Calculation excludes certain outstanding common shares (shown in millions by    period at the right) attributable to stock units subject to performance or market    conditions and restricted stock, which could have a dilutive effect in the future		0.1			0.3			0.1		0.3