(Loss) Earnings per Common Share (Tables)

3 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Schedule of calculations of basic and diluted earnings per common share

The calculations of basic and diluted (loss) earnings per common share for the three months ended September 30, 2020 and 2019 were as follows: 

	Three Months Ended September 30,
(in millions, except per share data)	2020		2019
Net (loss) income	$	(47.1)	$	41.2
Less: (loss) earnings and dividends allocated to participating securities	—		(0.4)
(Loss) earnings available for common stockholders used in calculation of basic (loss) earnings per common share	$	(47.1)	$	40.8
Weighted average number of common shares outstanding, basic	48.3		47.9
Basic (loss) earnings per common share	$	(0.98)	$	0.85
Net (loss) income	$	(47.1)	$	41.2
Less: earnings and dividends allocated to participating securities	—		(0.4)
(Loss) earnings available for common stockholders used in calculation of diluted (loss) earnings per common share	$	(47.1)	$	40.8
Weighted average number of common shares outstanding, basic	48.3		47.9
Effect of shares issuable under share-based compensation plans	—		0.4
Weighted average number of common shares outstanding, diluted	48.3		48.3
Diluted (loss) earnings per common share	$	(0.98)	$	0.85

Schedule of awards issued under share-based compensation plans excluded from the calculations of diluted earnings per share

The following awards issued under share-based compensation plans were excluded from the above calculations of diluted earnings per share because their effects were anti-dilutive:

	Three Months Ended September 30,
(in millions)	2020	2019
Stock options	2.1	0.8