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v3.20.4

Goodwill - Additional Information (Details) $ in Millions | Oct. 01, 2020 CAD ($) Basis_Points | Oct. 01, 2019
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Disclosure of information for cash-generating units [line items] |  |
Amount of recoverable amount exceeds carrying amount | $ | $ 62.8 |
Operating margins |  |
Disclosure of information for cash-generating units [line items] |  |
Increase (reduction) in values assigned to key assumptions | (0.0090) |
Discount rate |  |
Disclosure of information for cash-generating units [line items] |  |
Increase (reduction) in values assigned to key assumptions | 0.0090 |
Bottom of range |  |
Disclosure of information for cash-generating units [line items] |  |
Discount rate applied to cash flow projections | 8.30% | 8.70%
Operating margin rates | 8.10% |
Top of range |  |
Disclosure of information for cash-generating units [line items] |  |
Discount rate applied to cash flow projections | 25.90% | 16.30%
Percentage of growth rate | 3.00% | 3.00%
Operating margin rates | 8.80% |
Weighted average |  |
Disclosure of information for cash-generating units [line items] |  |
Discount rate applied to cash flow projections | 10.20% |

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