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Other Assets - Schedule of Other Assets (Details) - CAD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Disclosure of other assets [line items] |  |
Financial assets | $ 174.9 | $ 153.0
Other assets | 233.3 | 225.2
Less current portion - financial | 34.7 | 11.6
Less current portion - non-financial | 7.4 | 6.5
Long-term portion | 191.2 | 207.1
Investments held for self-insured liabilities |  |
Disclosure of other assets [line items] |  |
Financial assets | 174.9 | 153.0
Holdbacks on long-term contracts |  |
Disclosure of other assets [line items] |  |
Financial assets | 25.9 | 33.9
Other |  |
Disclosure of other assets [line items] |  |
Financial assets | 12.4 | 12.6
Other | 11.8 | 16.9
Investments in joint ventures and associates |  |
Disclosure of other assets [line items] |  |
Other | $ 8.3 | $ 8.8

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