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Earnings Per Share (Tables)
12 Months Ended
Dec. 30, 2018
Earnings Per Share [Abstract]  
Common Stock Reconciliation of Basic and Diluted Earnings Per Share
The reconciliation of basic earnings per share on common stock for the year-end 2018, 2017 and 2016 follows (in millions of dollars except per share data).
 
2018
 
2017
 
2016
Net earnings
$
22.9

 
$
71.6

 
$
120.8

Less: Earnings allocated to participating securities
(0.2
)
 
(1.1
)
 
(2.6
)
Net earnings available to common shareholders
$
22.7

 
$
70.5

 
$
118.2

 
 
 
 
 
 
Average common shares outstanding (millions):
 
 
 
 
 
Basic
38.8

 
38.3

 
38.1

Dilutive share awards
0.3

 
0.7

 
0.3

Diluted
39.1

 
39.0

 
38.4

 
 
 
 
 
 
Basic earnings per share
$
0.59

 
$
1.84

 
$
3.10

Diluted earnings per share
$
0.58

 
$
1.81

 
$
3.08