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Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2020
Goodwill [Abstract] |
Schedule of Reconciliation of Changes in Goodwill |
| December 31 2020 | December 31 2019
| $ | $
Gross goodwill, beginning of the year | 1,829.8 |  | 1,799.2 |
Acquisitions | 31.4 |  | 90.1 |
Impact of foreign exchange | (9.4) |  | (59.5) |
Gross goodwill, end of the year | 1,851.8 |  | 1,829.8 |
Accumulated impairment losses | (178.0) |  | (178.0) |
Net goodwill, end of the year | 1,673.8 |  | 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
| $ | $
Canada | 359.5 |  | 358.2 |
United States | 963.1 |  | 956.0 |
Global | 351.2 |  | 337.6 |
Allocated | 1,673.8 |  | 1,651.8 |

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