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Earnings (Loss) per Share (Tables)
12 Months Ended
Dec. 27, 2019
Earnings (Loss) per Share [Abstract]  
Schedule of Earnings (Loss) per Share
 
Fiscal Year
 
2019
 
2018
 
2017
Basic
83.9

 
84.0

 
97.7

Dilutive impact of restricted share units and share options

 

 
0.2

Diluted
83.9

 
84.0

 
97.9