Net Earnings Per Common Share

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Net Earnings Per Common Share

Net Earnings Per Common ShareThe following table shows the calculation of basic and diluted net earnings per common share: 

	Three Months Ended June 30,				Six Months Ended June 30,
(In millions, except per share amounts)	2021		2020		2021		2020
Basic Net Earnings Per Common Share:
Numerator:
Net earnings	$	108.1	$	100.1	$	218.2	$	226.7
Distributed and allocated undistributed net earnings to unvested restricted stockholders	—		—		—		(0.1)
Net earnings available to common stockholders	$	108.1	$	100.1	$	218.2	$	226.6
Denominator:
Weighted average number of common shares outstanding - basic	151.4		155.6		152.8		155.1
Basic net earnings per common share:
Basic net earnings per common share	$	0.71	$	0.64	$	1.43	$	1.46
Diluted Net Earnings Per Common Share:
Numerator:
Net earnings available to common stockholders	$	108.1	$	100.1	$	218.2	$	226.6
Denominator:
Weighted average number of common shares outstanding - basic	151.4		155.6		152.8		155.1
Effect of dilutive stock shares and units	1.3		0.3		1.2		0.3
Weighted average number of common shares outstanding - diluted under treasury stock	152.7		155.9		154.0		155.4
Diluted net earnings per common share	$	0.71	$	0.64	$	1.42	$	1.46