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Amounts Receivable (Tables)

12 Months Ended

Dec. 31, 2020

Subclassifications of assets, liabilities and equities [abstract]

Schedule of Receivables

			December 31, 2020			December 31, 2019
Sales tax receivables
Canada			$5.4			$8.9
Mexico			17.7			18.1
Other			4.0			5.7
Other receivables			7.6			4.7
			$34.7			$37.4

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