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Financial Instruments and Risk Management (Tables)

12 Months Ended

Dec. 31, 2020

Disclosure of detailed information about financial instruments [abstract]

Disclosure of fair value measurement of assets

			December 31, 2020						December 31, 2019
			Level 1			Level 2			Level 1			Level 2
Financial assets (liabilities)
Fair value through profit or loss
Gold options			—			—			—			(0.7)
Fair value through OCI
Equity securities			43.7			—			22.8			—
Currency hedging derivative instruments			—			4.3			—			3.3
Fuel options			—			0.1			—			—
			$43.7			$4.4			$22.8			$2.6

Disclosure of fair value measurement of liabilities

			December 31, 2020						December 31, 2019
			Level 1			Level 2			Level 1			Level 2
Financial assets (liabilities)
Fair value through profit or loss
Gold options			—			—			—			(0.7)
Fair value through OCI
Equity securities			43.7			—			22.8			—
Currency hedging derivative instruments			—			4.3			—			3.3
Fuel options			—			0.1			—			—
			$43.7			$4.4			$22.8			$2.6

Disclosure of detailed information about financial instruments

As at December 31, 2020, the Company held shares in the following companies:

Company						Fair Value
Metalla Royalty & Streaming Ltd.						$13.5
Monarch Gold Corp.						19.4
Other investments						10.8
						$43.7

Disclosure of detailed information about hedges

The fair value of derivative instruments is as follows:

									December 31,			December 31,
									2020			2019
Derivatives designated as hedging instruments
Currency hedging derivative instruments									4.3			$3.3
Fuel options									0.1			—
									$4.4			$3.3
Derivatives not designated as hedging instruments
Gold options									—			($0.7)

Disclosure of information about credit exposures designated as measured at fair value through profit or loss

			December 31,			December 31,
			2020			2019
Balance, beginning of the period			$4.6			($1.4)
Unrealized (loss) gain on currency instruments			(0.4)			9.6
Less: realized loss on CAD currency instruments			0.8			—
Less: realized loss (gain) on MXN currency instruments			0.6			(1.5)
Deferred income tax related to hedging instrument			0.1			(2.1)
			$5.7			$4.6

Schedule of Contracts Settled on Monthly Basis

The open contracts, which settle on a monthly basis, are summarized as at December 31, 2020:

Canadian dollar contracts

Period Covered			Contract type			Contracts (CAD$ Millions)			Average minimum rate (USD/CAD)			Average maximum rate (USD/CAD)
2021			Collars			45.0			1.31			1.38

Mexican Peso contracts

Period Covered			Contract type			Contracts (MXN Millions)			Average minimum rate (MXN/USD)			Average maximum rate (MXN/USD)
2021			Collars			1,185.0			20.96			25.28

Schedule of Outstanding Derivative Contracts

The following gold collar contracts are outstanding as of December 31, 2020:

Period Covered			Contract type			Ounces subject to contract			Average purchase put option			Average sold call option
2021			Collars			31,500			$1,730			$2,074

Schedule of Foreign Currency Exchange Rate Risk

			December 31, 2020			December 31, 2019
Impact of a 10% change in foreign exchange rates
Canadian dollar			$3.3			$1.2
Mexican peso			0.4			1.7

Disclosure of credit risk exposure

The currencies of the Company's financial instruments and other foreign currency denominated liabilities based on notional amounts, denominated in U.S dollar equivalents were as follows:

			Canadian Dollars						Mexican Peso
			December 31, 2020			December 31, 2019			December 31, 2020			December 31, 2019
Cash and cash equivalents			$33.5			$22.5			$6.5			$9.0
Equity securities			43.7			22.8			—			—
Amounts receivable			6.9			10.3			18.7			20.9
Other monetary assets (liabilities)			20.2			33.0			4.1			3.7
Accounts payable and accrued liabilities			(71.7)			(76.9)			(25.4)			(18.0)
Total exposure to currency risk			32.6			11.7			3.9			15.6

The Company's maximum exposure to credit risk is as follows:

			December 31, 2020			December 31, 2019
Cash and cash equivalents			$220.5			$182.8
Trade receivables			7.6			4.7
Total financial instrument exposure to credit risk			$228.1			$187.5

Schedule of Maturities of Debt

The following table shows the maturities of contractual commitments. The amount presented represents the future undiscounted principal and interest cash flows, and therefore, do not equate to the carrying amounts on the consolidated statements of financial position.

			Less than 1 year			2 - 3 years			4 - 5 years			More than 5 years			Total
Operating and financing leases			0.6			0.9			0.9			0.5			2.9
Accounts payable and accrued liabilities			131.4			—			—			—			131.4
Decommissioning liability			—			0.2			18.0			58.4			76.6
Contract mining			64.7			81.8			42.1			25.7			214.3
Capital commitments			30.9			5.2			—			—			36.1
			$227.6			$88.1			$61.0			$84.6			$461.3

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The disclosure of the credit risk exposure. Credit risk exposure is the credit risk inherent in an entity’s financial assets and commitments to extend credit.

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