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Financial Instruments and Risk Management - Currency Risk (Details) - Currency risk $ in Millions | Dec. 31, 2020 USD ($)
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Cash and cash equivalents | Canadian dollar |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | $ 16.0
Cash and cash equivalents | Euro |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | 9.6
Cash and cash equivalents | Thai baht |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | 1.2
Cash and cash equivalents | Chinese renminbi |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | 8.7
A/R | Canadian dollar |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | 2.5
A/R | Euro |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | 52.4
A/R | Thai baht |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | 0.0
A/R | Chinese renminbi |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | 11.0
Income taxes and value-added taxes receivable | Canadian dollar |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | 18.5
Income taxes and value-added taxes receivable | Euro |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | 1.4
Income taxes and value-added taxes receivable | Thai baht |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | 1.4
Income taxes and value-added taxes receivable | Chinese renminbi |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | 5.4
Other financial assets | Canadian dollar |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | 1.6
Other financial assets | Euro |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | 0.8
Other financial assets | Thai baht |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | 0.3
Other financial assets | Chinese renminbi |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | 0.3
Pension and non-pension post-employment liabilities | Canadian dollar |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | (79.4)
Pension and non-pension post-employment liabilities | Euro |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | (0.5)
Pension and non-pension post-employment liabilities | Thai baht |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | (18.3)
Pension and non-pension post-employment liabilities | Chinese renminbi |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | (1.4)
Income taxes and value-added taxes payable | Canadian dollar |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | 0.0
Income taxes and value-added taxes payable | Euro |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | (0.2)
Income taxes and value-added taxes payable | Thai baht |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | (4.8)
Income taxes and value-added taxes payable | Chinese renminbi |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | (11.4)
A/P and certain accrued and other liabilities and provisions | Canadian dollar |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | (99.3)
A/P and certain accrued and other liabilities and provisions | Euro |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | (35.8)
A/P and certain accrued and other liabilities and provisions | Thai baht |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | (36.7)
A/P and certain accrued and other liabilities and provisions | Chinese renminbi |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | (46.1)
Net financial assets (liabilities) | Canadian dollar |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | (140.1)
Net financial assets (liabilities) | Euro |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | 27.7
Net financial assets (liabilities) | Thai baht |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | (56.9)
Net financial assets (liabilities) | Chinese renminbi |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
Risk exposure associated with instruments sharing characteristic | $ (33.5)

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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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