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Trade and Other Receivables (Tables) | 12 Months Ended
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Dec. 31, 2020
Subclassifications of assets, liabilities and equities [abstract] |
Schedule of Trade and Other Receivables |
| December 31 2020 | December 31 2019
| $ | $
Trade receivables, net of expected credit losses of $3.0 (2019 – $2.2) | 702.7 |  | 787.3 |
Holdbacks, current | 19.7 |  | 20.6 |
Other | 15.6 |  | 9.8 |
Trade and other receivables | 738.0 |  | 817.7 |
Aging Analysis of Gross Trade Receivables | The aging analysis of gross trade receivables is as follows:
| Total $ | 1–30 $ | 31–60 $ | 61–90 $ | 91–120 $ | 121+ $
December 31, 2020 | 705.7 |  | 389.5 |  | 160.3 |  | 60.9 |  | 25.9 |  | 69.1 |
December 31, 2019 | 789.5 |  | 395.9 |  | 221.1 |  | 63.5 |  | 27.8 |  | 81.2 |

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