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Goodwill (Tables)
12 Months Ended
Dec. 31, 2020
Goodwill [Abstract]  
Schedule of Reconciliation of Changes in Goodwill
December 31
2020
December 31
2019
$
$
Gross goodwill, beginning of the year1,829.8 1,799.2 
Acquisitions31.4 90.1 
Impact of foreign exchange(9.4)(59.5)
Gross goodwill, end of the year1,851.8 1,829.8 
Accumulated impairment losses(178.0)(178.0)
Net goodwill, end of the year1,673.8 1,651.8 
Schedule of Goodwill Allocated
Goodwill was allocated to its CGUs or group of CGUs as follows:
December 31
2020
December 31
2019
$
$
Canada359.5 358.2 
United States963.1 956.0 
Global351.2 337.6 
Allocated1,673.8 1,651.8