Investment Tax Credits	12 Months Ended
Dec. 31, 2020
Investment tax credits [Abstract]
Investment Tax Credits	Investment Tax CreditsInvestment tax credits, arising from qualifying scientific research and experimental development efforts pursuant to existing tax legislation, are recorded as a reduction of administrative and marketing expenses when there is reasonable assurance of their ultimate realization. In 2020, investment tax credits of $10.5 (2019 – $11.5) were recorded.

The disclosure of tax receivables and payables.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 10
-Subparagraph e
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_10_e&doctype=Standard
-URIDate 2020-01-01

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