Net Earnings Per Common Share (Tables)

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

Computations of Basic and Diluted Earnings Per Share

	THREE MONTHS ENDED				NINE MONTHS ENDED
	SEPTEMBER 30,				SEPTEMBER 30,
	2014		2013		2014		2013
Net earnings	$	102.2	$	92.7	$	319.8	$	275.0
Basic weighted average common shares		103.9		103.2		103.9		103.2
Effect of dilutive stock options and employee stock purchase plan shares		0.1		0.1		0.1		0.1
Effect of restricted shares issued		0.6		0.7		0.5		0.6
Diluted weighted average common shares		104.6		104.0		104.5		103.9
Basic net earnings per common share	$	0.98	$	0.90	$	3.08	$	2.67
Diluted net earnings per common share	$	0.98	$	0.89	$	3.06	$	2.65