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v3.20.1

Financial risks (Narrative) (Details) - CAD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Interest rate risk [Member] |  |
Disclosure Of Financial Risks [Line Items] |  |
Sensitivity analysis, variance, percentage | 0.50% | 0.50%
Currency risk [Member] |  |
Disclosure Of Financial Risks [Line Items] |  |
Sensitivity analysis, variance, percentage | 5.00% | 5.00%
Effect of variance on net earnings | $ 1.3 | $ 2.1
Market risk [Member] |  |
Disclosure Of Financial Risks [Line Items] |  |
Sensitivity analysis, variance, percentage | 10.00% | 10.00%
Effect of variance on net earnings | $ 0.4 | $ 0.5
Effect of variance on other comprehensive income | $ 5.7 | $ 9.0

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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