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Basis of Preparation and Significant Accounting Policies - Narrative (Details) | 12 Months Ended | 24 Months Ended
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2018 | Dec. 31, 2020
Options |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Vesting period | 4 years |  |
RSUs |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Vesting period | 3 years |  |
Conversion rate, numerator (in shares) | 1 |  |
PSUs |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Vesting period | 3 years |  |
Award requisite service period | 3 years |  |
DSUs |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Conversion rate, numerator (in shares) | 1 |  |
25% vested in year 1 | Options |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Vesting (as a) percentage | 25.00% |  |
25% vested in year 1 | RSUs |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Vesting (as a) percentage | 33.33% |  |
25% vested in year 2 | Options |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Vesting (as a) percentage | 25.00% |  |
25% vested in year 2 | RSUs |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Vesting (as a) percentage | 33.33% |  |
25% vested in year 3 | Options |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Vesting (as a) percentage | 25.00% |  |
25% vested in year 3 | RSUs |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Vesting (as a) percentage | 33.33% |  |
25% vested in year 4 | Options |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Vesting (as a) percentage | 25.00% |  |
Bottom of range | PSUs |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Vesting (as a) percentage | 0.00% |  |
Bottom of range | DSUs |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Percentage of annual fees paid to Board of Directors paid in form of awards (percent) |  | 75.00% | 100.00%
Percentage of annual fees paid to board of directors in cash (percent) |  |  | 0.00%
Middle Of Range | DSUs |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Percentage of annual fees paid to board of directors in cash (percent) |  |  | 25.00%
Top of range | PSUs |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Vesting (as a) percentage | 200.00% |  |
Top of range | DSUs |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Percentage of annual fees paid to Board of Directors paid in form of awards (percent) |  | 100.00% |
Percentage of annual fees paid to board of directors in cash (percent) |  |  | 50.00%
Intellectual property | Bottom of range |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Useful life of intangible assets | 3 years |  |
Intellectual property | Top of range |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Useful life of intangible assets | 5 years |  |
Other intangible assets | Bottom of range |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Useful life of intangible assets | 4 years |  |
Other intangible assets | Top of range |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Useful life of intangible assets | 15 years |  |
Computer software assets | Bottom of range |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Useful life of intangible assets | 1 year |  |
Computer software assets | Top of range |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Useful life of intangible assets | 10 years |  |
Buildings |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Useful life of property, plant and equipment | 40 years |  |
Building/leasehold improvements | Top of range |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Useful life of property, plant and equipment | 40 years |  |
Machinery and equipment | Bottom of range |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Useful life of property, plant and equipment | 3 years |  |
Machinery and equipment | Top of range |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Useful life of property, plant and equipment | 15 years |  |

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