Wheaton Precious Metals (WPM) 40-F 31 Mar 21 2020 FY Annual report (Canada) Financial data

Cover Page

Cover Page	12 Months Ended
	Dec. 31, 2020shares
Cover [Abstract]
Document Type	40-F
Document Annual Report	true
Amendment Flag	false
Document Period End Date	Dec. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Trading Symbol	WPM
Document Registration Statement	false
Entity Registrant Name	WHEATON PRECIOUS METALS CORP.
Entity Central Index Key	0001323404
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Emerging Growth Company	false
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding	449,458,394
Entity Address, Country	CA
Entity Interactive Data Current	Yes
Title of 12(b) Security	Common Shares
ICFR Auditor Attestation Flag	true

Consolidated Statements of Earn

Consolidated Statements of Earnings - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Profit or loss [abstract]
Sales	$ 1,096,224	$ 861,332
Cost of sales
Cost of sales, excluding depletion	266,763	258,559
Depletion	243,889	256,826
Total cost of sales	510,652	515,385
Gross margin	585,572	345,947
General and administrative expenses	65,698	54,507
Impairment of mineral stream interests		165,912
Earnings from operations	519,874	125,528
Other (income) expense	(2,170)	(274)
Earnings before finance costs and income taxes	522,044	125,802
Finance costs	16,715	48,730
Earnings before income taxes	505,329	77,072
Income tax recovery	2,475	9,066
Net earnings	$ 507,804	$ 86,138
Basic earnings per share	$ 1.132	$ 0.193
Diluted earnings per share	$ 1.128	$ 0.193
Weighted average number of shares outstanding
Basic	448,694	446,021
Diluted	450,070	446,930

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
Statement of comprehensive income [abstract]
Net earnings		$ 507,804	$ 86,138
Items that will not be reclassified to net earnings
Gain on LTIs		25,856	161,936
Income tax recovery (expense) related to LTIs	[1]	(1,866)	(9,623)
Total other comprehensive income	[2]	23,990	152,313
Total comprehensive income		$ 531,794	$ 238,451
[1]	LTIs = long-term investments – common shares held.
[2]	Definitions as follows: “OCI” = Other Comprehensive Income (Loss); “SBC” = Equity Settled Stock Based Compensation; “Options” = Share Purchase Options; “RSUs” = Restricted Share Units; “LTI’s” = Long-Term Investments; “Warrants” = Share Purchase Warrants.

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 192,683	$ 103,986
Accounts receivable	5,883	7,138
Other	3,265	43,628
Total current assets	201,831	154,752
Non-current assets
Mineral stream interests	5,488,391	5,734,106
Early deposit mineral stream interests	33,241	31,741
Mineral royalty interest	3,047	3,036
Long-term equity investments	199,878	309,757
Convertible notes receivable	11,353	21,856
Property, plant and equipment	6,289	7,311
Other	13,242	15,448
Total non-current assets	5,755,441	6,123,255
Total assets	5,957,272	6,278,007
Current liabilities
Accounts payable and accrued liabilities	13,023	11,794
Current portion of performance share units	17,297	10,668
Current portion of lease liabilities	773	724
Other	76	41,514
Total current liabilities	31,169	64,700
Non-current liabilities
Bank debt	195,000	874,500
Lease liabilities	2,864	3,528
Deferred income taxes	214	148
Performance share units	11,784	8,401
Pension liability	1,670	810
Total non-current liabilities	211,532	887,387
Total liabilities	242,701	952,087
Shareholders' equity
Issued capital	3,646,291	3,599,203
Reserves	126,882	160,701
Retained earnings	1,941,398	1,566,016
Total shareholders' equity	5,714,571	5,325,920
Total liabilities and shareholders' equity	$ 5,957,272	$ 6,278,007

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Operating activities
Net earnings	$ 507,804	$ 86,138
Adjustments for Depreciation and depletion	245,779	258,730
Gain on disposal of mineral royalty interest		(2,929)
Impairment charges		165,912
Interest expense	12,366	44,942
Equity settled stock based compensation	5,432	5,691
Performance share units	9,398	7,834
Pension expense	806	810
Income tax expense (recovery)	(2,475)	(9,066)
Loss (gain) on fair value adjustment of share purchase warrants held	(337)	16
Fair value (gain) loss on convertible note receivable	(1,899)	1,043
Investment income recognized in net earnings	(230)	(875)
Other	1,487	1,833
Change in non-cash working capital	1,025	(11,837)
Cash generated from operations before income taxes and interest	779,156	548,242
Income taxes recovered (paid)	49	(5,380)
Interest paid	(13,992)	(42,059)
Interest received	229	817
Cash generated from operating activities	765,442	501,620
Financing activities
Bank debt repaid	(679,500)	(389,500)
Credit facility extension fees	(1,373)	(1,106)
Share purchase options exercised	21,892	37,038
Lease payments	(704)	(637)
Dividends paid	(167,212)	(129,986)
Cash (used for) generated from financing activities	(826,897)	(484,191)
Investing activities
Mineral stream interests	(322)	(183)
Early deposit mineral stream interests	(1,500)	(1,500)
Proceeds on disposal of mineral royalty interest		9,000
Acquisition of long-term investments	(10,671)	(909)
Acquisition of convertible note receivable		(10,000)
Proceeds on disposal of long-term investments	162,942	17,824
Dividend income received		59
Other	(801)	(3,661)
Cash generated from (used for) investing activities	149,648	10,630
Effect of exchange rate changes on cash and cash equivalents	504	160
Increase in cash and cash equivalents	88,697	28,219
Cash and cash equivalents, beginning of year	103,986	75,767
Cash and cash equivalents, end of year	$ 192,683	$ 103,986

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands		Total	Number of Shares [member]		Issued Capital [member]	Share Purchase Warrants Reserve [member]	Share Purchase Options Reserve [member]	Reserves Restricted Share Units Reserve [member]	LTI revaluation reserve (net of tax) [member]		Total Reserves [member]		Retained Earnings [member]
Balance at beginning of period at Dec. 31, 2018		$ 5,171,916			$ 3,516,437	$ 83,077	$ 31,002	$ 5,970	$ (112,156)	[1]	$ 7,893		$ 1,647,586
Balance, shares at beginning of period at Dec. 31, 2018		444,336,361	444,336,000
Total comprehensive income
Net earnings		$ 86,138											86,138
OCI	[1]	152,313							152,313		152,313
Total comprehensive income		238,451							152,313	[1]	152,313		86,138
Income tax recovery (expense)		376			376
SBC expense	[1]	5,691					2,474	3,217			5,691
Options exercised	[1]	$ 39,473			48,939		(9,466)				(9,466)
Options exercised, shares		2,039,735	2,040,000	[1]
RSUs released	[1]				2,782			(2,782)			(2,782)
RSUs released, shares		133,670	134,000	[1]
Dividends (Note 18.2)		$ (129,987)			30,669								(160,656)
Dividends (Note 18.2), shares		1,261,667	1,261,000
Realized gain on disposal of LTIs (Note 19.4)		$ (7,282)							7,052	[1]	7,052	[1]	(7,052)	[1]
Balance end of period at Dec. 31, 2019		$ 5,325,920			$ 3,599,203	83,077	24,010	6,405	47,209	[1]	160,701		1,566,016
Balance, shares at end of period at Dec. 31, 2019		447,771,433	447,771,000		447,771,433
Total comprehensive income
Net earnings		$ 507,804											507,804
OCI	[1]	23,990							23,990		23,990
Total comprehensive income		531,794							23,990	[1]	23,990		507,804
Income tax recovery (expense)		(820)			$ (820)
SBC expense	[1]	5,432					2,165	3,267			5,432
Options exercised	[1]	$ 19,456			23,776		(4,320)				(4,320)
Options exercised, shares		1,056,363	1,056,000	[1]
RSUs released	[1]				2,857			(2,857)			(2,857)
RSUs released, shares		128,405	128,000	[1]
Dividends (Note 18.2)		$ (167,211)			21,275								(188,486)
Dividends (Note 18.2), shares		502,193	503,000
Realized gain on disposal of LTIs (Note 19.4)		$ 60,814							(56,064)	[1]	(56,064)	[1]	56,064	[1]
Balance end of period at Dec. 31, 2020		$ 5,714,571			$ 3,646,291	$ 83,077	$ 21,855	$ 6,815	$ 15,135	[1]	$ 126,882		$ 1,941,398
Balance, shares at end of period at Dec. 31, 2020		449,458,394	449,458,000		449,458,394
[1]	Definitions as follows: “OCI” = Other Comprehensive Income (Loss); “SBC” = Equity Settled Stock Based Compensation; “Options” = Share Purchase Options; “RSUs” = Restricted Share Units; “LTI’s” = Long-Term Investments; “Warrants” = Share Purchase Warrants.

Description of Business and Nat

Description of Business and Nature of Operations	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Description of Business and Nature of Operations	1. Description of Business and Nature of Operations Wheaton Precious Metals Corp. is a precious metal streaming company which generates its revenue primarily from the sale of precious metals (gold, silver and palladium). Wheaton Precious Metals Corp. (“Wheaton” or the “Company”), which is the ultimate parent company of its consolidated group, is incorporated and domiciled in Canada, and its principal place of business is at Suite 3500 - 1021 West Hastings Street, Vancouver, British Columbia, V6E 0C3. The Company trades on the Toronto Stock Exchange (“TSX”) and the New York Stock Exchange (“NYSE”) under the symbol WPM. Additionally, on October 28, 2020, the Company’s common shares were admitted to the Standard Segment of the Official List of the UK Financial Conduct Authority and commenced trading on the Main Market of the London Stock Exchange (“LSE”) under the symbol WPM. As of December 31, 2020, the Company has entered into 25 long-term purchase agreements (three of which are early deposit agreements), with 19 different mining companies, for the purchase of precious metals and cobalt (“precious metal purchase agreements” or “PMPA”) relating to 24 mining assets which are currently operating, 7 which are at various stages of development and 1 which has been placed in care and maintenance, located in 12 countries. Pursuant to the PMPAs, Wheaton acquires metal production from the counterparties for an initial upfront payment plus an additional cash payment for each ounce or pound delivered which is fixed by contract, generally at or below the prevailing market price. The consolidated financial statements of the Company for the year ended December 31, 2020 were authorized for issue as of March 11, 2021 in accordance with a resolution of the Board of Directors. Business Continuity and Employee Health and Safety In accordance with local government restrictions and guidelines, Wheaton temporarily closed its physical offices in mid-March re-opened Partner Operations During the second quarter of 2020, six partner operations located in Mexico and Peru on which the Company has PMPAs were temporarily suspended due to government restrictions focused on reducing the impacts of COVID-19, There can be no assurance that our partners’ operations that are currently operational will continue to remain operational for the duration of the COVID-19

Basis of Presentation and State

Basis of Presentation and Statement of Compliance	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Basis of Presentation and Statement of Compliance	2. Basis of Presentation and Statement of Compliance These consolidated financial statements have been prepared in accordance with International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board (“IASB”) on a historical cost basis, except for financial assets which are not held for the purpose of collecting contractual cash flows on specified dates and derivative assets and derivative liabilities which have been measured at fair value as at the relevant balance sheet date. The consolidated financial statements are presented in United States (“US”) dollars, which is the Company’s functional currency, and all values are expressed in thousands unless otherwise noted. References to “Cdn$” refer to Canadian dollars. The preparation of financial statements in accordance with IFRS requires the use of certain accounting estimates. It also requires management to exercise judgment in applying the Company’s accounting policies. The areas involving a higher degree of judgment or complexity, or areas where assumptions and estimates are significant to the financial statements are disclosed in Note 4.

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Significant Accounting Policies	3. Significant Accounting Policies 3.1. New Accounting Standards Effective in 2020 Amendment to IFRS 3 - Business Combinations The amendments to IFRS 3 clarify the definition of a business and includes an optional concentration test to determine whether an acquired set of activities and assets is a business. The amendments are effective for business combinations and asset acquisitions occurring on or after January 1, 2020. The Company will apply these amendments to future acquisition transactions. Interest Rate Benchmark Reform (Amendments to IFRS 9, IAS 39 and IFRS 7) The amendments in Interest Rate Benchmark Reform (Amendments to IFRS 9, IAS 39 and IFRS 7) clarify that entities would continue to apply certain hedge accounting requirements assuming that the interest rates benchmark on which the hedged cash flows and cash flows from the hedging instrument are based will not be altered as a result of interest rate benchmark reform. This amendment did not have a significant impact to the Company’s consolidated financial statements as the Company does not have hedge accounting. Amendments to IFRS 16 Leases To provide practical relief to lessees in accounting for rent concessions arising as a result of COVID-19 COVID-19 COVID-19 3.2. Principles of Consolidation The consolidated financial statements include the accounts of the Company and its 100% owned subsidiaries Wheaton Precious Metals International Ltd., Silver Wheaton Luxembourg S.a.r.l. and Wheaton Precious Metals (Cayman) Co. Subsidiaries are fully consolidated from the date on which the Company obtains a controlling interest. Control is defined as an investor’s power over an investee with exposure, or rights, to variable returns from the investee and the ability to affect the investor’s returns through its power over the investee. Subsidiaries are included in the consolidated financial results of the Company from the effective date of acquisition up to the effective date of disposition or loss of control. The financial statements of the subsidiaries are prepared for the same reporting period as the parent company, using consistent accounting policies. Balances, transactions, income and expenses between the Company and its subsidiaries are eliminated on consolidation. 3.3. Cash and Cash Equivalents Cash and cash equivalents include cash and highly liquid money market investments including short-term deposits, treasury bills, commercial paper, bankers’ depository notes and bankers’ acceptances with terms to maturity of less than three months. 3.4. Revenue Recognition Revenue relating to the sale of precious metals is recognized when control of the precious metal is transferred to the customer in an amount that reflects the consideration the Company expects to receive in exchange for those products. In determining whether the Company has satisfied a performance obligation, it considers the indicators of the transfer of control, which include, but are not limited to, whether: the Company has a present right to payment; the customer has legal title to the asset; the Company has transferred physical possession of the asset to the customer; and the customer has the significant risks and rewards of ownership of the asset. Under certain PMPAs, precious metal is acquired from the mine operator in the form of gold, silver or palladium credits, which is then sold through a network of third party brokers or dealers. Revenue from precious metal credit sales is recognized at the time of the sale of such credits, which is also the date that control of the precious metal is transferred to the customer. The Company will occasionally enter into forward contracts in relation to precious metal deliveries that it is highly confident will occur within a given quarter. No forward contracts were outstanding at December 31, 2020 or December 31, 2019. The sales price is fixed at the delivery date based on either the terms of these short-term forward sales contracts or the spot price of the precious metal. Under certain PMPAs, precious metal is acquired from the mine operator in concentrate form, which is then sold under the terms of the concentrate sales contracts to third-party smelters or traders. Where the Company acquires precious metals in concentrate form, final precious metal prices are set on a specified future quotational period (the “Quotational Period”) pursuant to the concentrate sales contracts with third-party smelters, typically one to three months after the shipment date, based on market prices for precious metals. The contracts, in general, provide for a provisional payment based upon provisional assays and quoted precious metal prices. Final settlement is based upon the average applicable price for the Quotational Period applied to the actual number of precious metal ounces recovered calculated using confirmed smelter weights and settlement assays. Revenues and the associated cost of sales are recorded on a gross basis under these contracts at the time title passes to the buyer, which is also the date that control of the precious metal is transferred to the customer. The Company has concluded that the adjustments relating to the final assay results for the quantity of concentrate sold and the retroactive pricing adjustment for the Quotational Period are not significant and do not constrain the recognition of revenue. 3.5. Financial Instruments Financial assets and financial liabilities are recognized when the Company becomes a party to the contractual provisions of the instrument. Financial assets and financial liabilities are initially measured at fair value. Transaction costs that are directly attributable to the acquisition or issue of financial assets and financial liabilities (other than financial assets and financial liabilities at fair value through net earnings) are added to or deducted from the fair value of the financial assets or financial liabilities, as appropriate, on initial recognition. Transaction costs directly attributable to the acquisition of financial assets or financial liabilities at fair value through net earnings are recognized immediately in net earnings. 3.6. Financial Assets Financial assets are subsequently measured at either amortized cost or fair value, depending on the classification of the financial assets. Financial Assets at Fair Value Through Other Comprehensive Income (“FVTOCI”) The Company’s long-term investments in common shares held are for long-term strategic purposes and not for trading. Upon the adoption of IFRS 9, Financial Instruments (“IFRS 9”), the Company made an irrevocable election to designate these long-term investments in common shares held as FVTOCI as it believes that this provides a more meaningful presentation for long-term strategic investments, rather than reflecting changes in fair value in net earnings. Long-term investments in common shares held are initially measured at fair value. Subsequently, they are measured at fair value with gains and losses arising from changes in fair value recognized as a component of other comprehensive income (“OCI”) and accumulated in the long-term investment revaluation reserve. The cumulative gain or loss will not be reclassified to net earnings on disposal of these long-term investments but is reclassified to retained earnings. Dividends on these long-term investments in common shares held are recognized as a component of net earnings in the period they are received under the classification Other (Income) Expense. Financial Assets at Fair Value Through Net Earnings (“FVTNE”) Cash and cash equivalents are stated at FVTNE. Warrants held by the Company for long-term investment purposes are classified as FVTNE. These warrants are measured at fair value at the end of each reporting period, with any gains or losses arising on remeasurement recognized as a component of net earnings under the classification Other (Income) Expense. Convertible notes receivable (Note 14) are classified as FVTNE and are measured at fair value at the end of each reporting period by discounting the stream of future interest and principal payments at the rate of interest prevailing at the balance sheet date for instruments of similar term and risk (the market interest rate), and adding this value to the value of the convertibility feature which is estimated using a Black-Scholes model based on assumptions including risk free interest rate, expected dividend yield, expected volatility and expected remaining life of the respective convertible notes receivable. The resulting gains or losses (if any) arising on remeasurement is recognized as a component of net earnings under the classification Other (Income) Expense. As discussed in Note 3.4, the Company’s provisionally priced sales contain an embedded derivative that is reflected at fair value at the end of each reporting period. Fair value gains and losses related to the embedded derivative are included in revenue in the period they occur. Financial Assets at Amortized Cost The non-revolving non-interest non-revolving Foreign Exchange Gains and Losses The fair value of financial assets denominated in a foreign currency is determined in that foreign currency and translated at the spot rate at the end of each reporting period. The foreign exchange component forms part of its fair value gain or loss. Therefore, · For financial assets that are classified as FVTNE, the foreign exchange component is recognized as a component of net earnings; · For financial assets that are classified as FVTOCI, the foreign exchange component is recognized as a component of OCI; and · For financial assets that are denominated in a foreign currency and are measured at amortized cost at the end of each reporting period, the foreign exchange gains and losses are determined based on the amortized cost of the instruments and are recognized as a component of net earnings. Derecognition of Financial Assets The Company derecognizes a financial asset only when the contractual rights to cash flows from the asset expire, or when it transfers the financial asset and substantially all the risks and rewards of ownership of the asset to another entity. If the Company neither transfers nor retains substantially all the risks and rewards of ownership and continues to control the transferred asset, the Company recognizes its retained interest in the asset and an associated liability for amounts it may have to pay. If the Company retains substantially all the risks and rewards of ownership of a transferred financial asset, the Company continues to recognize the financial asset and also recognizes a collateralized borrowing for the proceeds received. On derecognition of a financial asset that is classified as FVTOCI, the cumulative gain or loss (net of tax) previously accumulated in the long-term investment revaluation reserve is not reclassified to net earnings, but is reclassified to retained earnings. 3.7. Financial Liabilities and Equity Instruments Debt and equity instruments issued by the Company are classified as either financial liabilities or as equity in accordance with the substance of the contractual arrangements and the definition of a financial liability and equity instrument. All financial liabilities are subsequently measured at amortized cost using the effective interest method or at FVTNE, depending on the classification of the instrument. Equity Instruments An equity instrument is a contract that evidences a residual interest in the assets of an entity after deducting all of its liabilities. Equity instruments issued by the Company are recognized at the proceeds received less direct issue costs (net of any current or deferred income tax recovery attributable to such costs). Share Purchase Warrants Issued Share purchase warrants issued with an exercise price denominated in the Company’s functional currency (US dollars) are considered equity instruments with the consideration received reflected within shareholders’ equity under the classification of share purchase warrants reserve. Upon exercise, the original consideration is reallocated from share purchase warrants reserve to issued share capital along with the associated exercise price. Bank Debt Bank debt is initially measured at fair value, net of transaction costs, and is subsequently measured at amortized cost using the effective interest method. The effective interest method is a method of calculating the amortized cost of a financial liability and of allocating interest expense over the relevant period. The effective interest rate is the rate that exactly discounts estimated future cash payments through the expected life of the financial liability, or (where appropriate) a shorter period, to the net carrying amount on initial recognition. Other Financial Liabilities Accounts payable and accrued liabilities are stated at amortized cost, which approximate fair values due to the short terms to maturity. Foreign Exchange Gains and Losses The fair value of financial liabilities denominated in a foreign currency is determined in that foreign currency and translated at the spot rate at the end of each reporting period. Therefore, · For financial liabilities that are denominated in a foreign currency and are measured at amortized cost at the end of each reporting period, the foreign exchange gains and losses are determined based on the amortized cost of the instruments and are recognized as a component of net earnings; and · For financial liabilities that are classified as FVTNE, the foreign exchange component forms part of the fair value gains or losses and is recognized as a component of net earnings. Derecognition of Financial Liabilities The Company derecognizes financial liabilities when the Company’s obligations are discharged, cancelled or they expire. The difference between the carrying amount of the financial liability derecognized and the consideration paid and payable, including any non-cash 3.8. Mineral Stream Interests Agreements for which settlement is called for in gold, silver, palladium or cobalt, the amount of which is based on production at the mines, are stated at cost less accumulated depletion and accumulated impairment charges, if any. The cost of the asset is comprised of its purchase price, any closing costs directly attributable to acquiring the asset, and, for qualifying assets, borrowing costs. The purchase price is the aggregate cash amount paid and the fair value of any other non-cash Depletion The cost of these mineral stream interests is separately allocated to reserves, resources and exploration potential. The value allocated to reserves is classified as depletable and is depleted on a unit-of-production non-depletable Asset Impairment Management considers each PMPA to be a separate cash generating unit (“CGU”), which is the lowest level for which cash inflows are largely independent of those of other assets. At the end of each reporting period, the Company assesses each PMPA to determine whether any indication of impairment exists. If such an indication exists, the recoverable amount of the PMPA is estimated in order to determine the extent of the impairment (if any). The recoverable amount of each PMPA is the higher of fair value less cost of disposal (“FVLCD”) and value in use (“VIU”). In determining the recoverable amounts of each of the Company’s CGU’s, the Company uses the FVLCD as this will generally be greater than or equal to the VIU. To determine the FVLCD that could be received from each PMPA in an arm’s length transaction at the measurement date, the Company estimates a range of potential values using the net asset value (“NAV”) methodology and the net present value (“NPV”) methodology (as described below), and then selects a value within this range which is the most representative of the estimated recoverable amount of the stream. NAV is estimated by using an appropriate discount rate to calculate the present value of the expected future cash flows associated with each mineral category. The values are adjusted for each mineral category dependent on the likelihood of conversion from resources to reserves. A market multiple is applied to the NAV computed in order to assess the estimated fair value. Precious metal companies typically trade at a market capitalization that is based on a multiple of their underlying NAV, with this market multiple being generally understood to take account of a variety of additional value and risk factors such as the ability to find and produce more metal than what is currently included in the life of mine plan, the benefit of precious metal price optionality, the potential remaining mine life and adjustments for relative mine and country risk. Consequently, a market participant would generally apply a NAV multiple when estimating the fair value of a precious metal interest. NPV is estimated by using a nominal discount rate to calculate the present value of expected future cash flows. The expected future cash flows are management’s best estimates of expected future revenues and costs. Under each valuation methodology, expected future revenues reflect an estimate of future payable production for each mine at which the Company has a PMPA derived from detailed life of mine plans received from each of the partners. Expected future revenues also reflect management’s estimated long-term metal prices. Estimated future cash costs are generally fixed based on the terms of each PMPA as disclosed in Note 28. If the carrying amount of the PMPA exceeds its recoverable amount, the PMPA is considered impaired and an impairment charge is reflected as a component of net earnings so as to reduce the carrying amount to its recoverable value. A previously recognized impairment charge is reversed only if there has been an indicator of a potential impairment reversal and the resulting assessment of the PMPA’s recoverable amount exceeds its carrying value. If this is the case, the carrying amount of the PMPA is increased to its recoverable amount. The increased amount cannot exceed the carrying amount that would have been determined, net of depletion, had no impairment charge been recognized for the PMPA in prior years. Such reversal is reflected as a component of net earnings. 3.9. Borrowing and Debt Issue Costs Borrowing costs allocable to qualifying assets, which are assets that necessarily take a substantial period of preparation for their intended use, are capitalized and included in the carrying amounts of the related assets until such time as the assets are substantially ready for their intended use. Borrowing costs that do not relate to the acquisition or construction of qualifying assets are reflected as a component of net earnings under the classification Finance Costs, as incurred. Debt issue costs on non-revolving 3.10. Stock Based Payment Transactions The Company recognizes a stock based compensation expense for all share purchase options and restricted share units (“RSUs”) awarded to employees, officers and directors based on the fair values of the share purchase options and RSUs at the date of grant. The fair values of share purchase options and RSUs at the date of grant are expensed over the vesting periods of the share purchase options and RSUs, respectively, with a corresponding increase to equity. The fair value of share purchase options is determined using the Black-Scholes option pricing model with market related inputs as of the date of grant. Share purchase options with graded vesting schedules are accounted for as separate grants with different vesting periods and fair values. The fair value of RSUs is the market value of the underlying shares at the date of grant. At the end of each reporting period, the Company re-assesses The Company recognizes a stock based compensation expense for performance share units (“PSUs”) which are awarded to eligible employees and are settled in cash. Compensation expense for the PSUs is recorded on a straight-line basis over the three year vesting period. This estimated expense is reflected as a component of net earnings over the vesting period of the PSUs with the related obligation recorded as a liability on the balance sheet. The amount of compensation expense is adjusted at the end of each reporting period to reflect (i) the fair market value of common shares; (ii) the number of PSUs anticipated to vest; and (iii) the anticipated performance factor. 3.11. Income Taxes Income tax expense comprises current and deferred income tax. Current and deferred income taxes are recognized as a component of net earnings except to the extent that it relates to items recognized directly in equity or as a component of OCI. Current income tax is the expected tax payable on the taxable income for the year, using tax rates enacted or substantively enacted at the end of the reporting period, and any adjustment to tax payable in respect of previous years. Deferred income tax is recognized using the liability method on temporary differences arising between the tax bases of assets and liabilities and their carrying amounts in the consolidated financial statements. Deferred income tax assets and liabilities are measured using tax rates and laws that have been enacted or substantively enacted at the end of the reporting period and which are expected to apply when the related deferred income tax assets are realized or the deferred income tax liabilities are settled. Deferred income tax liabilities are generally recognized for all taxable temporary differences. Deferred income tax assets are generally recognized for all deductible temporary differences and the carry forward of unused tax losses and tax credits to the extent that it is probable that sufficient future taxable income, including income arising from reversing taxable temporary differences and tax planning opportunities, will be available against which those deductible temporary differences and the carry forward of unused tax losses and tax credits can be utilized. Deferred income tax liabilities are recognized for taxable temporary differences arising on investments in subsidiaries except where the reversal of the temporary difference can be controlled and it is probable that the difference will not reverse in the foreseeable future. Deferred income tax assets arising from deductible temporary differences associated with such investments are only recognized to the extent that it is probable that there will be sufficient taxable income against which to utilize the benefits of the temporary differences and they are expected to reverse in the foreseeable future. The carrying amount of deferred income tax assets are reviewed at the end of each reporting period and reduced to the extent that it is no longer probable that sufficient taxable income, including income arising from reversing taxable temporary differences and tax planning opportunities, will be available to allow all or part of the deferred income tax assets to be recovered. Deferred income tax assets and liabilities are not recognized for temporary differences arising from the initial recognition (other than in a business combination) of assets and liabilities in a transaction which does not affect either the accounting income or the taxable income. In addition, deferred income tax liabilities are not recognized if the temporary difference arises from the initial recognition of goodwill. 3.12. Earnings Per Share Earnings per share calculations are based on the weighted average number of common shares and common share equivalents issued and outstanding during the year. Diluted earnings per share is calculated using the treasury method which requires the calculation of diluted earnings per share by assuming that outstanding share purchase options and warrants with an exercise price that exceeds the average market price of the common shares for the period are exercised, and the proceeds are used to repurchase shares of the Company at the average market price of the common shares for the period. 3.13. Foreign Currency Translation The functional currency is the currency of the primary economic environment in which an entity operates. The consolidated financial statements are presented in US dollars, which is the functional currency of the Company and its subsidiaries. Foreign currency monetary assets and liabilities are translated into US dollars at the exchange rates prevailing at the balance sheet date. Non-monetary 3.14. Leasing The Company as the Lessee At inception of a contract, the Company assesses whether the contract is, or contains, a lease. A contract is, or contains, a lease if the contract conveys the right to use an identified asset for a period of time in exchange for consideration. The Company recognizes a right-of-use The lease liability is initially measured at the present value of the lease payments that are not paid at the commencement date discounted by using the rate implicit in the lease. If this rate cannot be readily determined, the Company uses its incremental borrowing rate. The lease liability is subsequently measured by increasing the carrying amount to reflect interest on the lease liability (using the effective interest method) and by reducing the carrying amount to reflect the lease payments made. The Company re-measures right-of-use re-measured The right-of-use 3.15. Property, plant and equipment Property, plant and equipment are measured at cost less accumulated depreciation. The cost includes the original purchase price of the asset and the costs attributable to bringing the asset to its working condition for its intended use. Depreciation is based on cost and is calculated on a straight-line basis over the estimated economic life of the asset. The right of use asset discussed in Note 3.14 and the leasehold improvements are depreciated over the life of the lease term. Other assets, which include computer software, computer equipment, office furniture and office equipment, are depreciated over their estimated economic life, which ranges from 3 to 10 years. 3.16. Provisions Provisions are recognized when the Company has a present obligation (legal or constructive) as a result of a past event, it is probable that the Company will be required to settle the obligation, and a reliable estimate can be made of the amount required to settle the obligation. The amount recognized as a provision is the best estimate of the consideration required to settle the present obligation at the end of the reporting period, taking into account the risks and uncertainties surrounding the obligation. Where a provision is measured using the cash flows estimated to settle the present obligation, its carrying amount is the present value of those cash flows. When some or all of the economic benefits required to settle a provision are expected to be recovered from a third party, a receivable is recognized as an asset if it is virtually certain that reimbursement will be received and the amount of the receivable can be measured reliably. 3.17. Post-Employment Benefit Costs The Company provides a Supplemental Employee Retirement Plan (“SERP) to all qualified employees. The SERP is an unregistered and unfunded defined contribution plan under which the Company makes a fixed notional contribution to an account maintained by the Company. Any benefits under the SERP have a vesting period of five years from the first date of employment. The notional contributions are recognized as employee benefit expense in earnings in the periods during which services are rendered by employees. 3.18. Future Changes to Accounting Policies The IASB has issued the following new or amended standards: Standards required to be applied for periods beginning on or after January 1, 2021: Amendment to IAS 16 - Property, Plant and Equipment The amendments to IAS 16 prohibit deducting from the cost of property, plant and equipment the proceeds from selling items produced while bringing the assets to the location and condition necessary for them to be capable of operating in the manner intended by management. Instead, a company will recognize such sales proceeds and related cost in the Statement of Earnings. This amendment is in effect January 1, 2022 with early adoption permitted. The adoption of this guidance is not expected to have a material impact on the Company’s Consolidated Statement of Earnings.

Key Sources of Estimation Uncer

Key Sources of Estimation Uncertainty and Critical Accounting Judgments	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Key Sources of Estimation Uncertainty and Critical Accounting Judgments	4. Key Sources of Estimation Uncertainty and Critical Accounting Judgments The preparation of the Company’s consolidated financial statements in conformity with IFRS requires management to make judgments, estimates and assumptions that affect the reported amounts of assets, liabilities and contingent liabilities at the date of the consolidated financial statements and reported amounts of revenues and expenses during the reporting period. Estimates and assumptions are continuously evaluated and are based on management’s experience and other factors, including expectations of future events that are believed to be reasonable under the circumstances. However, actual outcomes can differ from these estimates. Information about significant areas of estimation uncertainty and judgments made by management in preparing the consolidated financial statements are described below. Key Sources of Estimation Uncertainty 4.1. Attributable Reserve, Resource and Exploration Potential Estimates Mineral stream interests are significant assets of the Company, with a carrying value of $5.5 billion at December 31, 2020. This amount represents the capitalized expenditures related to the acquisition of the mineral stream interests, net of accumulated depletion and accumulated impairment charges, if any. The Company estimates the reserves, resources and exploration potential relating to each agreement. Reserves are estimates of the amount of metals contained in ore that can be economically and legally extracted from the mining properties in respect of which the Company has PMPAs. Resources are estimates of the amount of metals contained in mineralized material for which there is a reasonable prospect for economic extraction from the mining properties in respect of which the Company has PMPAs. Exploration potential represents an estimate of additional reserves and resources which may be discovered through the mine operator’s exploration program. The Company adjusts its estimates of reserves, resources (where applicable) and exploration potential (where applicable) to reflect the Company’s percentage entitlement to metals produced from such mines. The Company compiles its estimates of its reserves and resources based on information supplied by appropriately qualified persons relating to the geological data on the size, density and grade of the ore body, and require complex geological and geostatistical judgments to interpret the data. The estimation of recoverable reserves and resources is based upon factors such as estimates of foreign exchange rates, commodity prices, future capital requirements, and production costs along with geological assumptions and judgments made in estimating the size and grade of the ore body. The Company estimates exploration potential based on assumptions surrounding the ore body continuity which requires judgment as to future success of any exploration programs undertaken by the mine operator. Changes in the reserve estimates, resource estimates or exploration potential estimates may impact upon the carrying value of the Company’s mineral stream interests and depletion charges. 4.2. Depletion As described in Note 3.8, the Company’s mineral stream interests are separately allocated to reserves, resources and exploration potential. The value allocated to reserves is classified as depletable and is depleted on a unit-of-production non-depletable 4.3. Impairment of Assets As more fully described in Note 3.8, the Company assesses each PMPA at the end of every reporting period to determine whether any indication of impairment or impairment reversal exists. If such an indication exists, the recoverable amount of the PMPA is estimated in order to determine the extent of the impairment or impairment reversal (if any). The calculation of the recoverable amount requires the use of estimates and assumptions such as long-term commodity prices, discount rates, recoverable ounces of attributable metals, and operating performance. The price of precious metals and cobalt has been extremely volatile over the past several years. The Company monitors spot and forward metal prices and if necessary re-evaluates re-evaluate In 2015 and 2016, the Company recognized impairments totaling $120 million on its Sudbury PMPA resulting from a reduction in the estimated recoverable gold ounces. As at December 31, 2020, as a result of the rising spot and forecast gold prices, the Company considered whether there was an indication of impairment reversal associated with the Sudbury PMPA. After considering the movements in gold price combined with the recent actual and forecast attributable production levels, the Company concluded that there was no indicator of impairment reversal. 4.4. Valuation of Stock Based Compensation As more fully described in Note 3.10, the Company has various forms of stock based compensation, including share purchase options, restricted share units (“RSUs”) and performance share units (“PSUs”). The calculation of the fair value of share purchase options, RSUs and PSUs issued requires the use of estimates as more fully described in Notes 19.2, 19.3, and 20.1, respectively. 4.5. Contingencies Due to the size, complexity and nature of the Company’s operations, various legal and tax matters are outstanding from time to time, including those matters described in Note 28. By their nature, contingencies will only be resolved when one or more future events occur or fail to occur. The assessment of contingencies inherently involves the exercise of significant judgment and estimates of the outcome of future events. If the Company is unable to resolve any of these matters favorably, there may be a material adverse impact on the Company’s financial performance, cash flows or results of operations. In the event that management’s estimate of the future resolution of these matters changes, the Company will recognize the effects of the changes in its consolidated financial statements in the appropriate period relative to when such changes occur. Critical Accounting Judgments 4.6. Functional Currency The functional currency for the Company and each of its subsidiaries is the currency of the primary economic environment in which the entity operates. As a result of the following factors, the Company has determined that the functional currency of each entity is the US dollar: · The entities’ revenues are denominated in US dollars; · The entities’ cash cost of sales are denominated in US dollars; · The majority of the entities’ cash is held in US dollars; and · The Company generally seeks to raise capital in US dollars. Determination of the functional currency may involve certain judgments to determine the primary economic environment and the Company reconsiders the functional currency of its entities if there is a change in events and conditions which determined the primary economic environment. 4.7. Income Taxes The interpretation and application of existing tax laws, regulations or rules in Canada, the Cayman Islands, Barbados, Luxembourg, the Netherlands or any of the countries in which the Company’s subsidiaries or the mining operations are located or to which deliveries of precious metals, precious metal credits or cobalt are made requires the use of judgment. The likelihood that tax positions taken will be sustained is assessed based on facts and circumstances of the relevant tax position considering all available evidence. Differing interpretation of these laws, regulations or rules could result in an increase in the Company’s taxes, or other governmental charges, duties or impositions. Refer to Note 28 for more information. In assessing the probability of realizing deferred income tax assets, the Company makes estimates related to expectations of future taxable income, including the expected timing of reversals of existing temporary differences. Such estimates are based on forecasted cash flows from operations which require the use of estimates and assumptions such as long-term commodity prices and recoverable metal ounces. The amount of deferred income tax assets recognized on the balance sheet could be reduced if the actual taxable income differs significantly from expected taxable income. The Company reassesses its deferred income tax assets at the end of each reporting period. 4.8. Leases The Company assesses whether a contract contains a lease and, if so, recognizes a lease liability by discounting the future lease payments by using the Company’s estimated incremental borrowing rate. If the lease agreement contains an option to extend the lease, the Company must assess the likelihood of whether that option will be exercised. The determination of whether an option to extend a lease will be exercised requires significant management judgment, and providing the Company concludes that it is reasonably certain that the option to extend will be exercised, the lease payments during the extension period will comprise part of the right-of-use

Financial Instruments

Financial Instruments	12 Months Ended
	Dec. 31, 2020
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Financial Instruments	5. Financial Instruments 5.1. Capital Risk Management The Company manages its capital to ensure that it will be able to continue as a going concern while maximizing the return to stakeholders through the optimization of the debt and equity balance. The capital structure of the Company consists of debt (Note 17) and equity attributable to common shareholders, comprising of issued capital (Note 18), accumulated reserves (Note 19) and retained earnings. The Company is not subject to any externally imposed capital requirements with the exception of complying with the minimum tangible net worth covenant under the credit agreement governing bank debt (Note 17). The Company is in compliance with the debt covenants at December 31, 2020, as described in Note 17.1. 5.2. Categories of Financial Assets and Liabilities The non-revolving non-interest non-revolving Note December 31 December 31 (in thousands) 2020 2019 Financial assets Financial assets mandatorily measured at FVTNE 1 Cash and cash equivalents $ 192,683 $ 103,986 Trade receivables from provisional concentrate sales, net of fair value adjustment 6, 9 5,429 4,350 Long-term investments - warrants held 15 3,637 - Convertible notes receivable 14 11,353 21,856 Investments in equity instruments designated as at FVTOCI 1 Long-term investments - common shares held 15 196,241 309,757 Financial assets measured at amortized cost Non-revolving 24 813 431 Other accounts receivable 9 454 2,788 Class action settlement recoverable 24, 28 - 41,500 Total financial assets $ 410,610 $ 484,668 Financial liabilities Financial liabilities at amortized cost Accounts payable and accrued liabilities 13,023 11,794 Bank debt 17 195,000 874,500 Pension liability 27 1,670 810 Class action settlement 28 - 41,500 Total financial liabilities $ 209,693 $ 928,604 1) FVTNE refers to Fair Value Through Net Earnings, FVTOCI refers to Fair Value Through Other Comprehensive Income 5.3. Credit Risk Credit risk is the risk that the counterparty to a financial instrument will cause a financial loss for the Company by failing to discharge its obligations. To mitigate exposure to credit risk on financial assets, the Company has established policies to limit the concentration of credit risk, to ensure counterparties demonstrate minimum acceptable credit worthiness and to ensure liquidity of available funds. The Company closely monitors its financial assets and does not have any significant concentration of credit risk. The Company invests surplus cash in short-term, high credit quality, money market instruments. In addition, counterparties used to sell precious metals are all large, international organizations with strong credit ratings and the balance of trade receivables owed to the Company in the ordinary course of business is not significant. Therefore, credit risk associated with trade receivables at December 31, 2020 is considered to be negligible. The Company’s maximum exposure to credit risk related to its financial assets is as follows: December 31 December 31 (in thousands) Note 2020 2019 Cash and cash equivalents $ 192,683 $ 103,986 Trade receivables from provisional concentrate sales, net of fair value adjustment 9 5,429 4,350 Other accounts receivables 9 454 2,788 Non-revolving 24 813 431 Convertible notes receivable 14 11,353 21,856 Class action settlement recoverable 24, 28 - 41,500 Maximum exposure to credit risk related to financial assets $ 210,732 $ 174,911 As it relates to the non-revolving 5.4. Liquidity Risk The Company has in place a rigorous planning and budgeting process to help determine the funds required to support the Company’s normal operating requirements on an ongoing basis and its expansionary plans. The Company ensures that there are sufficient committed loan facilities to meet its short-term business requirements, taking into account its anticipated cash flows from operations and its holdings of cash and cash equivalents. As at December 31, 2020, the Company had cash and cash equivalents of $193 million (December 31, 2019 - $104 million) and working capital of $171 million (December 31, 2019 - $90 million). The Company holds equity investments of several companies (Note 15) with a combined market value at December 31, 2020 of $200 million (December 31, 2019 - $310 million). The daily exchange traded volume of these shares, including the shares underlying the warrants, is not sufficient for the Company to liquidate its position in a short period of time without potentially affecting the market value of the shares. These shares and warrants are held for strategic purposes and are considered long-term investments and therefore, as part of the Company’s planning, budgeting and liquidity analysis process, these investments are not relied upon to provide operational liquidity. The following table summarizes the timing associated with the Company’s remaining contractual payments relating to its financial liabilities. The table reflects the undiscounted cash flows of financial liabilities based on the earliest date on which the Company can be required to pay (assuming that the Company is in compliance with all of its obligations). The table includes both interest and principal cash flows. To the extent that applicable interest rates are floating in nature, the interest charges are estimated based on market-based forward interest rate curves at the end of the reporting period. As at December 31, 2020 (in thousands) 2021 2022 - 2024 2025 - 2026 After 2026 Total Non-derivative Bank debt ¹ $ - $ - $ 195,000 $ - $ 195,000 Interest on bank debt ² 2,311 8,722 622 - 11,655 Accounts payable and accrued liabilities 13,023 - - - 13,023 Performance share units 3 17,297 11,784 - - 29,081 Pension liability 4 1,670 - - - 1,670 Lease liability 1,053 3,204 400 - 4,657 Total $ 35,354 $ 23,710 $ 196,022 $ - $ 255,086 1) Assumes the principal balance outstanding at December 31, 2020 does not change until the debt maturity date. 2) As the applicable interest rates are floating in nature, the interest charges are estimated based on market-based forward interest rate curves at the end of the reporting period combined with the assumption that the principal balance outstanding at December 31, 2020 does not change until the debt maturity date. 3) Assumes a weighted average performance factor of 187% (see Note 20.1). 4) Any benefits under the SERP will be paid out to the employee over a 10-year 5.5. Currency Risk The Company undertakes certain transactions denominated in Canadian dollars, including certain operating expenses and the acquisition of strategic long-term investments. As a result, the Company is exposed to fluctuations in the value of the Canadian dollar relative to the United States dollar. The carrying amounts of the Company’s Canadian dollar denominated monetary assets and monetary liabilities at the end of the reporting period are as follows: December 31 December 31 (in thousands) 2020 2019 Monetary assets Cash and cash equivalents $ 5,041 $ 4,148 Accounts receivable 71 2,519 Long-term investments - common shares held 195,816 309,757 Long-term investments - warrants held 3,637 - Convertible note receivable 11,353 11,837 Non-revolving 813 431 Other long-term assets 3,519 3,450 Total Canadian dollar denominated monetary assets $ 220,250 $ 332,142 Monetary liabilities Accounts payable and accrued liabilities $ 8,011 $ 6,059 Performance share units 23,405 15,423 Lease liability 2,403 2,748 Pension liability 1,670 810 Total Canadian dollar denominated monetary liabilities $ 35,489 $ 25,040 The following tables detail the Company’s sensitivity to a 10% increase or decrease in the Canadian dollar relative to the United States dollar, representing the sensitivity used when reporting foreign currency risk internally to key management personnel and represents management’s assessment of the reasonably possible change in exchange rates. As at December 31, 2020 Change in Canadian Dollar (in thousands) 10% 10% Increase (decrease) in net earnings $ (1,105 ) $ 1,105 Increase (decrease) in other comprehensive income 19,582 (19,582 ) Increase (decrease) in total comprehensive income $ 18,477 $ (18,477 ) As at December 31, 2019 Change in Canadian Dollar (in thousands) 10% 10% Increase (decrease) in net earnings $ (265 ) $ 265 Increase (decrease) in other comprehensive income 30,976 (30,976) Increase (decrease) in total comprehensive income $ 30,711 $ (30,711) 5.6. Interest Rate Risk The Company is exposed to interest rate risk on its outstanding borrowings and short-term investments. Presently, all of the Company’s outstanding borrowings are at floating interest rates. The Company monitors its exposure to interest rates and has not entered into any derivative contracts to manage this risk. During the year ended December 31, 2020, the weighted average effective interest rate paid by the Company on its outstanding borrowings was 2.03% (2019 – 4.07%). During the years ended December 31, 2020 and 2019, a fluctuation in interest rates of 100 basis points (1 percent) would have impacted the amount of interest expensed by approximately $6 million and $11 million, respectively. 5.7. Other Price Risk The Company is exposed to equity price risk as a result of holding long-term investments in common shares of various companies. The Company does not actively trade these investments. If equity prices had been 10% higher or lower at the respective balance sheet date, other comprehensive income for the year ended December 31, 2020 and 2019 would have increased/decreased by approximately $20 million and $31 million, respectively as a result of changes in the fair value of common shares held. 5.8. Fair Value Estimation The Company classifies its fair value measurements within a fair value hierarchy, which reflects the significance of the inputs used in making the measurements as defined in IFRS 13 – Fair Value Measurements (“IFRS 13”). Level 1 - Unadjusted quoted prices at the measurement date for identical assets or liabilities in active markets. Level 2 - Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. Level 3 - Unobservable inputs which are supported by little or no market activity. The following table sets forth the Company’s financial assets and liabilities measured at fair value by level within the fair value hierarchy. As required by IFRS 13, assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. December 31, 2020 (in thousands) Note Total Level 1 Level 2 Level 3 Cash and cash equivalents $ 192,683 $ 192,683 $ - $ - Trade receivables from provisional concentrate sales, net of fair value adjustment 9 5,429 - 5,429 - Long-term investments - common shares held 15 196,241 196,241 - - Long-term investments - warrants held 15 3,637 - 3,637 - Kutcho Convertible Note 14 11,353 - - 11,353 $ 409,343 $ 388,924 $ 9,066 $ 11,353 December 31, 2019 (in thousands) Note Total Level 1 Level 2 Level 3 Cash and cash equivalents $ 103,986 $ 103,986 $ - $ - Trade receivables from provisional concentrate sales, net of fair value adjustment 9 4,350 - 4,350 - Long-term investments - common shares held 15 309,757 309,757 - - Long-term investments - warrants held 15 - - - - Convertible notes receivable 14 21,856 - - 21,856 $ 439,949 $ 413,743 $ 4,350 $ 21,856 The non-revolving non-interest non-revolving The Company’s bank debt (Note 17.1) is reported at amortized cost using the effective interest method. The carrying value of the bank debt approximates its fair value. 5.8.1. Valuation Techniques for Level 1 Assets Cash and Cash Equivalents The Company’s cash and cash equivalents are valued using quoted market prices in active markets and, as such, are classified within Level 1 of the fair value hierarchy. Long-Term Investments in Common Shares Held The Company’s long-term investments in common shares held are valued using quoted market prices in active markets and, as such, are classified within Level 1 of the fair value hierarchy. The fair value of the long-term investments in common shares held is calculated as the quoted market price of the common share multiplied by the quantity of shares held by the Company. 5.8.2. Valuation Techniques for Level 2 Assets Accounts Receivable Arising from Sales of Metal Concentrates The Company’s trade receivables and accrued liabilities from provisional concentrate sales are valued based on forward prices of gold and silver to the expected date of final settlement (Note 6). As such, these receivables and/or liabilities are classified within Level 2 of the fair value hierarchy. Long-Term Investments in Warrants Held The fair value of the Company’s long-term investments in warrants held that are not traded in an active market are determined using a Black-Scholes model based on assumptions including risk free interest rate, expected dividend yield, expected volatility and expected warrant life which are supported by observable current market conditions and as such are classified within Level 2 of the fair value hierarchy. The use of reasonably possible alternative assumptions would not significant affect the Company’s results. 5.8.3. Valuation Techniques for Level 3 Assets Convertible Notes Receivable The fair value of the Kutcho Convertible Note and the previously owned Gold X Convertible Note (Note 14), which are not traded in an active market, is determined by discounting the stream of future interest and principal payments at the rate of interest prevailing at the balance sheet date for instruments of similar term and risk (the market interest rate), and adding this value to the value of the convertibility feature which is estimated using a Black-Scholes model based on assumptions including risk free interest rate, expected dividend yield, expected volatility and expected remaining life of the respective convertible notes receivable. As the expected volatility and market interest rate are not observable inputs, these convertible notes receivable are classified within Level 3 of the fair value hierarchy and any changes in fair value are reflected on the Consolidated Statement of Earnings under the classification Other (Income) Expense (Note 8). Relative to the Kutcho Convertible Note, management estimates that the market interest rate on similar borrowings without the conversion feature was approximately 29% and has used an implied volatility of 30% in valuing the convertibility feature. Holding all other variables constant, a fluctuation in interest rates of 1% and a fluctuation in the implied volatility used of 5% would have impacted the valuation as below: As at December 31, 2020 Change in interest rate Change in volatility (in thousands) Increase Decrease Increase Decrease Kutcho Convertible Note $ (371 ) $ 386 $ 243 $ (199) Minto Derivative Liability The production payment per ounce of gold delivered to Wheaton under the Minto PMPA is to be increased over the fixed price in periods where the market price of copper is lower than $2.50 per pound. As this pricing mechanism meets the definition of a derivative, it is reflected at fair value for financial reporting purposes. At December 31, 2020 and December 31, 2019, the Company estimated the fair value of this derivative liability to be $nil.

Revenue

Revenue	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Revenue	6. Revenue Years Ended December 31 (in thousands) 2020 2019 Sales Gold Gold credit sales $ 652,827 60 % $ 535,766 62% Concentrate sales - 0 % 5,279 1% $ 652,827 60 % $ 541,045 63% Silver Silver credit sales $ 320,192 29 % $ 225,316 26% Concentrate sales 79,433 7 % 63,085 7% $ 399,625 36 % $ 288,401 33% Palladium Palladium credit sales $ 43,772 4 % $ 31,886 4% Total sales revenue $ 1,096,224 100 % $ 861,332 100% Gold, Silver and Palladium Credit Sales Under certain PMPAs, precious metal is acquired from the mine operator in the form of precious metal credits, which is then sold through a network of third party brokers or dealers. Revenue from precious metal credit sales is recognized at the time of the sale of such credits, which is also the date that control of the precious metal is transferred to the customer. During the year ended December 31, 2020, sales to two financial institutions accounted for 33% and 32% of the Company’s revenue as compared to sales to two financial institutions that accounted for 33% and 25% of the Company’s revenue during the comparable period of the previous year. The Company would not be materially affected should any of these financial institutions cease to buy precious metal credits from the Company as these sales would be redirected to alternate financial institutions. The Company will occasionally enter into forward contracts in relation to precious metal deliveries that it is highly confident will occur within a given quarter. No forward contracts were outstanding at December 31, 2020 or December 31, 2019. The sales price is fixed at the delivery date based on either the terms of these short-term forward sales contracts or the spot price of precious metal. Concentrate Sales Under certain PMPAs, gold and/or silver is acquired from the mine operator in concentrate form, which is then sold under the terms of the concentrate sales contracts to third-party smelters or traders. Where the Company acquires precious metal in concentrate form, final precious metal prices are set on a specified future quotational period (the “Quotational Period”) pursuant to the concentrate sales contracts with third-party smelters, typically one to three months after the shipment date, based on market prices for precious metal. The contracts, in general, provide for a provisional payment based upon provisional assays and quoted gold and silver prices. Final settlement is based upon the average applicable price for the Quotational Period applied to the actual number of precious metal ounces recovered calculated using confirmed smelter weights and settlement assays. Revenues and the associated cost of sales are recorded on a gross basis under these contracts at the time title passes to the customer, which is also the date that control of the precious metal is transferred to the customer. The Company has concluded that the adjustments relating to the final assay results for the quantity of concentrate sold and the retroactive pricing adjustment for the Quotational Period are not significant and do not constrain the recognition of revenue.

General and Administrative

General and Administrative	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
General and Administrative	7. General and Administrative Years Ended December 31 (in thousands) Note 2020 2019 Salaries and benefits Salaries and benefits, excluding PSUs $ 16,733 $ 13,840 PSUs 1 20.1 21,520 17,174 Total salaries and benefits $ 38,253 $ 31,014 Depreciation 1,889 1,903 Donations 5,792 2,946 Professional fees 3,590 2,496 Other 10,742 10,457 General and administrative before equity settled stock based compensation $ 60,266 $ 48,816 Equity settled stock based compensation 2 Stock options 19.2 $ 2,165 $ 2,474 RSUs 19.3 3,267 3,217 Total equity settled stock based compensation $ 5,432 $ 5,691 Total general and administrative $ 65,698 $ 54,507 1) The PSU accrual related to the anticipated fair value of the PSUs issued uses a weighted average performance factor of 187% during the year ended December 31, 2020 as compared to 186% during the comparable period of 2019. 2) Equity settled stock based compensation is a non-cash

Other (Income) Expense

Other (Income) Expense	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Other (Income) Expense	8. Other (Income) Expense Years Ended December 31 (in thousands) Note 2020 2019 Interest income $ (229 ) $ (816 ) Dividends received from equity investments designated as FVTOCI ¹ relating to investments held at the end of the reporting period 15 - (59 ) Foreign exchange loss 152 1,028 Gain on disposal of mineral royalty interest 13 - (2,929 ) Net (gain) loss arising on financial assets mandatorily measured at FVTPL ² (Gain) loss on fair value adjustment of share purchase warrants held 15 (338 ) 16 (Gain) loss on fair value adjustment of convertible notes receivable 14 (1,899 ) 1,043 Other 144 1,443 Total other (income) expense $ (2,170 ) $ (274 ) 1) FVTOCI refers to Fair Value Through Other Comprehensive Income. 2) FVTPL refers to Fair Value Through Profit or Loss.

Accounts Receivable

Accounts Receivable	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Accounts Receivable	9. Accounts Receivable December 31 December 31 (in thousands) Note 2020 2019 Trade receivables from provisional concentrate sales, net of fair value adjustment 6 $ 5,429 $ 4,350 Other accounts receivable 454 2,788 Total accounts receivable $ 5,883 $ 7,138

Mineral Stream Interests

Mineral Stream Interests	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Mineral Stream Interests	10. Mineral Stream Interests Year Ended December 31, 2020 Cost Accumulated Depletion & Impairment 1 Carrying (in thousands) Balance Additions Balance Balance Depletion Balance Gold interests Salobo $ 3,059,876 $ - $ 3,059,876 $ (454,619 ) $ (95,913 ) $ (550,532 ) $ 2,509,344 Sudbury 2 623,864 - 623,864 (279,821 ) (23,027 ) (302,848 ) 321,016 Constancia 136,058 - 136,058 (25,652 ) (4,837 ) (30,489 ) 105,569 San Dimas 220,429 - 220,429 (26,062 ) (12,165 ) (38,227 ) 182,202 Stillwater 3 239,352 - 239,352 (9,358 ) (5,684 ) (15,042 ) 224,310 Other 4 402,232 - 402,232 (389,064 ) (5,642 ) (394,706 ) 7,526 $ 4,681,811 $ - $ 4,681,811 $ (1,184,576 ) $ (147,268 ) $ (1,331,844 ) $ 3,349,967 Silver interests Peñasquito $ 524,626 - 524,626 $ (149,924 ) $ (24,130 ) $ (174,054 ) $ 350,572 Antamina 900,343 - 900,343 (231,533 ) (41,876 ) (273,409 ) 626,934 Constancia 302,948 - 302,948 (74,761 ) (11,143 ) (85,904 ) 217,044 Other 5 1,283,054 (1,826 ) 1,281,228 (795,361 ) (10,892 ) (806,253 ) 474,975 $ 3,010,971 $ (1,826 ) $ 3,009,145 $ (1,251,579 ) $ (88,041 ) $ (1,339,620 ) $ 1,669,525 Palladium interests Stillwater 3 $ 263,721 $ - $ 263,721 $ (13,752 ) $ (8,580 ) $ (22,332 ) $ 241,389 Cobalt interests Voisey’s Bay $ 393,422 $ - $ 393,422 $ (165,912 ) $ - $ (165,912 ) $ 227,510 $ 8,349,925 $ (1,826) $ 8,348,099 $ (2,615,819) $ (243,889) $ (2,859,708) $ 5,488,391 1) Includes cumulative impairment charges to December 31, 2020 as follows: Keno Hill silver interest - $11 million; Pascua-Lama silver interest - $338 million; 777 silver interest - $64 million; 777 gold interest - $151 million; Sudbury gold interest - $120 million; and Voisey’s Bay cobalt interest - $166 million. 2) Comprised of the Coleman, Copper Cliff, Garson, Stobie, Creighton, Totten and Victor gold interests. 3) Comprised of the Stillwater and East Boulder gold and palladium interests. 4) Comprised of the Minto, Rosemont, 777 and Marmato gold interests. 5) Comprised of the Los Filos, Zinkgruvan, Yauliyacu, Stratoni, Keno Hill, Neves-Corvo, Minto, Aljustrel, Loma de La Plata, Pascua-Lama, Rosemont, 777, Marmato and Cozamin silver interests. During the third quarter of 2020, Wheaton agreed to modify the Keno Hill PMPA as it relates to the delivery payment per ounce of silver in exchange for 2 million common share purchase warrants from Alexco (Note 15). The fair value of these warrants have been reflected as a reduction to the cost base of the Keno Hill silver interest. Year Ended December 31, 2019 Cost Accumulated Depletion & Impairment 1 Carrying (in thousands) Balance Additions Balance Balance Depletion Impairment Balance Gold interests Salobo $ 3,059,876 $ - $ 3,059,876 $ (353,816 ) $ (100,803 ) $ - $ (454,619 ) $ 2,605,257 Sudbury 2 623,864 - 623,864 (257,401 ) (22,420 ) - (279,821 ) 344,043 Constancia 136,058 - 136,058 (18,511 ) (7,141 ) - (25,652 ) 110,406 San Dimas 220,429 - 220,429 (12,234 ) (13,828 ) - (26,062 ) 194,367 Stillwater 3 239,357 (5 ) 239,352 (2,925 ) (6,433 ) - (9,358 ) 229,994 Other 4 402,232 - 402,232 (380,873 ) (8,191 ) - (389,064 ) 13,168 $ 4,681,816 $ (5 ) $ 4,681,811 $ (1,025,760 ) $ (158,816 ) $ - $ (1,184,576 ) $ 3,497,235 Silver interests Peñasquito $ 524,626 $ - $ 524,626 $ (135,904 ) $ (14,020 ) $ - $ (149,924 ) $ 374,702 Antamina 900,343 - 900,343 (190,266 ) (41,267 ) - (231,533 ) 668,810 Constancia 302,948 - 302,948 (56,717 ) (18,044 ) - (74,761 ) 228,187 Other 5 1,283,039 15 1,283,054 (780,401 ) (14,960 ) - (795,361 ) 487,693 $ 3,010,956 $ 15 $ 3,010,971 $ (1,163,288 ) $ (88,291 ) $ - $ (1,251,579 ) $ 1,759,392 Palladium interests Stillwater 3 $ 263,726 $ (5 ) $ 263,721 $ (4,033 ) $ (9,719 ) $ - $ (13,752 ) $ 249,969 Cobalt interests Voisey’s Bay $ 393,422 $ - $ 393,422 $ - $ - $ (165,912 ) $ (165,912 ) $ 227,510 $ 8,349,920 $ 5 $ 8,349,925 $ (2,193,081) $ (256,826) $ (165,912) $ (2,615,819) $ 5,734,106 1) Includes cumulative impairment charges to December 31, 2019 as follows: Keno Hill silver interest - $11 million; Pascua-Lama silver interest - $338 million; 777 silver interest - $64 million; 777 gold interest - $151 million; Sudbury gold interest - $120 million; and Voisey’s Bay cobalt interest - $166 million. 2) Comprised of the Coleman, Copper Cliff, Garson, Stobie, Creighton, Totten and Victor gold interests. 3) Comprised of the Stillwater and East Boulder gold and palladium interests. 4) Comprised of the Minto, Rosemont and 777 gold interests. 5) Comprised of the Los Filos, Zinkgruvan, Yauliyacu, Stratoni, Keno Hill, Neves-Corvo, Minto, Aljustrel, Loma de La Plata, Pascua-Lama, Rosemont and 777 silver interests. T unit-of-production non-depletable December 31, 2020 December 31, 2019 (in thousands) Depletable Non- Depletable Total Depletable Non- Depletable Total Gold interests Salobo $ 2,085,359 $ 423,985 $ 2,509,344 $ 2,078,666 $ 526,591 $ 2,605,257 Sudbury 1 269,834 51,182 321,016 290,841 53,202 344,043 Constancia 97,539 8,030 105,569 101,263 9,143 110,406 San Dimas 73,514 108,688 182,202 87,593 106,774 194,367 Stillwater 2 199,616 24,694 224,310 203,163 26,831 229,994 Other 3 7,526 - 7,526 13,168 - 13,168 $ 2,733,388 $ 616,579 $ 3,349,967 $ 2,774,694 $ 722,541 $ 3,497,235 Silver interests Peñasquito $ 258,267 $ 92,305 $ 350,572 $ 287,493 $ 87,209 $ 374,702 Antamina 279,859 347,075 626,934 322,148 346,662 668,810 Constancia 202,475 14,569 217,044 212,173 16,014 228,187 Other 4 98,383 376,592 474,975 83,687 404,006 487,693 $ 838,984 $ 830,541 $ 1,669,525 $ 905,501 $ 853,891 $ 1,759,392 Palladium interests Stillwater 2 $ 231,747 $ 9,642 $ 241,389 $ 238,485 $ 11,484 $ 249,969 Cobalt interests Voisey’s Bay $ 203,436 $ 24,074 $ 227,510 $ - $ 227,510 $ 227,510 $ 4,007,555 $ 1,480,836 $ 5,488,391 $ 3,918,680 $ 1,815,426 $ 5,734,106 1) Comprised of the Coleman, Copper Cliff, Garson, Stobie, Creighton, Totten and Victor gold interests. 2) Comprised of the Stillwater and East Boulder gold and palladium interests. 3) Comprised of the Minto, Rosemont and 777 gold interests. 4) Comprised of the Los Filos, Zinkgruvan, Yauliyacu, Stratoni, Keno Hill, Neves-Corvo, Minto, Aljustrel, Loma de La Plata, Pascua-Lama, Rosemont and 777 silver interests. Acquisition of Marmato Precious Metals Purchase Agreement On November 5, 2020, the Company announced that it had entered into an agreement with Aris Gold Corp. (“Aris Gold”) (TSX:ARIS) in respect to the Marmato mine located in Colombia. Under the terms of the PMPA with Aris Gold, the Company will acquire from Aris Gold 6.5% of the gold production and 100% of the silver production until 190,000 ounces of gold and 2.15 million ounces of silver have been delivered, after which the stream drops to 3.25% of the gold production and 50% of the silver production for the life of mine. Under the Marmato PMPA, the Company is required to pay Aris Gold total cash consideration of $110 million, $34 million of which is payable once mining contract 014-89M Acquisition of Cozamin Precious Metals Purchase Agreement On December 11, 2020, the Company entered into an agreement with Capstone Mining Corp. (“Capstone”) (TSX: CS) in respect to the Cozamin Mine located in Zacatecas, Mexico. The Company paid Capstone upfront cash consideration of $150 million upon closing, which occurred on February 19, 2021, for 50% of the silver production until 10 million ounces (“Moz”) have been delivered, thereafter dropping to 33% of silver production for the life of the mine. In addition, Wheaton will make ongoing payments for silver ounces delivered equal to 10% of the spot silver price. The PMPA is effective December 1, 2020. As at December 31, 2020, no metal has been delivered to the Company and accordingly no revenue has been recognized and no depletion has been taken with respect to this PMPA.

Impairment of Mineral Stream In

Impairment of Mineral Stream Interests	12 Months Ended
	Dec. 31, 2020
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Impairment of Mineral Stream Interests	11. Impairment of Mineral Stream Interests As more fully described in Note 3.8, at every reporting period the Company assesses each PMPA to determine whether any indication of impairment or impairment reversal exists. Based on the Company’s analysis, there were no indicators of impairment or impairment reversal at December 31, 2020 and December 31, 2019. The following PMPA was determined to have an indicator of impairment and be impaired at June 30, 2019: Years Ended December 31 (in thousands) 2020 2019 Cobalt Interests Voisey’s Bay $ - $ 165,912 Total impairment charges $ - $ 165,912 Voisey’s Bay - Indicator of Impairment On June 11, 2018, the Company entered into an agreement (the “Voisey’s Bay PMPA”) to acquire from Vale an amount of cobalt equal to 42.4% of the cobalt production from its Voisey’s Bay mine, located in Canada, until the delivery of 31 million pounds of cobalt and 21.2% of cobalt production thereafter for the life of mine for a total upfront cash payment of $390 million. Concurrently, Vale also entered into a streaming agreement with Cobalt 27 Capital Corp. (“Cobalt 27”) on the Voisey’s Bay mine with similar terms and conditions to the Voisey’s Bay PMPA. On June 18, 2019, Cobalt 27 announced that it had entered into an agreement with Pala Investments Limited (“Pala”) whereby Pala would acquire 100% of Cobalt 27’s issued and outstanding common shares. The estimated implied price paid by Pala for Cobalt 27’s streaming agreement on the Voisey’s Bay mine was significantly lower than the original upfront cash payment paid by Cobalt 27 to Vale at the time their agreement was entered into. The implied purchase price paid by Pala to acquire Cobalt 27’s Voisey’s Bay stream was determined to be an indicator of impairment relative to the Company’s Voisey’s Bay PMPA. The Voisey’s Bay PMPA had a pre-impairment

Early Deposit Mineral Stream In

Early Deposit Mineral Stream Interests	12 Months Ended
	Dec. 31, 2020
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Early Deposit Mineral Stream Interests	12. Early Deposit Mineral Stream Interests Early deposit mineral stream interests represent agreements relative to early stage development projects whereby Wheaton can choose not to proceed with the agreement once certain documentation has been received including, but not limited to, feasibility studies, environmental studies and impact assessment studies (please see Note 28 for more information). Once Wheaton has elected to proceed with the agreement, the carrying value of the stream will be transferred to Mineral Stream Interests. The following table summarizes the early deposit mineral stream interests currently owned by the Company: Attributable Early Deposit Mineral Mine Location of Upfront 1 Upfront 1, 2 Total Gold Silver Term of Toroparu Gold X Guyana $ 15,500 $ 138,000 $ 153,500 10 % 50 % Life of Mine Cotabambas Panoro Peru 10,000 130,000 140,000 25 % ³ 100 % ³ Life of Mine Kutcho Kutcho Canada 7,000 58,000 65,000 100 % 4 100 % 4 Life of Mine $ 32,500 $ 326,000 $ 358,500 1) Expressed in thousands of United States dollars; excludes closing costs and capitalized interest, where applicable. 2) Please refer to Note 28 for details of when the remaining upfront consideration to be paid becomes due. 3) Once 90 million silver equivalent ounces attributable to Wheaton have been produced, the attributable production will decrease to 16.67% of gold production and 66.67% of silver production for the life of mine. 4) Once 51,000 ounces of gold and 5.6 million ounces of silver have been delivered to Wheaton, the stream will decrease to 66.67% of gold and silver production for the life of mine.

Mineral Royalty Interest

Mineral Royalty Interest	12 Months Ended
	Dec. 31, 2020
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Mineral Royalty Interest	13. Mineral Royalty Interest On August 7, 2014, the Company purchased a 1.5% net smelter return royalty interest (the “Royalty”) in the Metates properties located in Mexico from Chesapeake Gold Corp. (“Chesapeake”) for the life of mine. Under the terms of the agreement, the Company paid total upfront cash consideration of $9 million. In accordance with the terms of the agreement, on August 7, 2019, Chesapeake exercised its option to re-acquire two-thirds two-thirds To date, no revenue has been recognized and no depletion has been taken with respect to this royalty agreement.

Convertible Notes Receivable

Convertible Notes Receivable	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Convertible Note Receivable	14. Convertible Notes Receivable Kutcho Copper Corp. Effective December 14, 2017, in connection with the Kutcho Early Deposit Agreement, the Company advanced to Kutcho $16 million (Cdn$20 million) and received the Kutcho Convertible Note. The Kutcho Convertible Note, which has a seven year term to maturity, carries interest at 10% per annum, compounded and payable semi-annually. Kutcho elected to defer the first six interest payments, with all deferred payments being due no later than December 31, 2023. The deferred interest carries interest at 15% per annum, compounded semi-annually. At any time prior to the maturity date, the Company has the right to convert all or any part of the outstanding amount of the Kutcho Convertible Note, excluding outstanding deferred interest, into common shares of Kutcho at Cdn$0.8125 per share. Kutcho has the right to repay the Kutcho Convertible Note early, subject to the applicable pre-payment · 20% of the outstanding amount if pre-paid · 15% of the outstanding amount if pre-paid Gold X Mining Corp. Effective December 24, 2019, in connection with the Toroparu Early Deposit Agreement (Note 12), the Company advanced $10 million to Gold X as part of a $20 million 10% secured convertible debenture private placement offering completed by Gold X (the “Gold X Convertible Note”). The Gold X Convertible Note carried interest at 10% per annum, compounded semi-annually and payable annually. Effective July 14, 2020, the Company elected to convert the outstanding principal relative to the Gold X Convertible Note into common shares of Gold X at Cdn$3.20 per share, with the outstanding amounts being converted into Canadian dollars using the exchange rate published by the Bank of Canada on July 13, 2020. In addition, the accrued interest relative to the Gold X Convertible Note was converted to common shares of Gold X at Cdn$3.57 per share. As a result, on July 14, 2020 the Company received 4,467,317 common shares of Gold X (see Note 15) and the Gold X Convertible Note was retired. Convertible Notes Receivable Valuation Summary The Kutcho Convertible Note is revalued quarterly by discounting the stream of future interest and principal payments at the rate of interest prevailing at the balance sheet date for instruments of similar term and risk, and adding this value to the value of the convertibility feature which is estimated using a Black-Scholes model based on assumptions including risk free interest rate, expected dividend yield, expected volatility and expected remaining life of the Kutcho Convertible Note. The value of the Gold X Convertible Note, which was converted into common shares of Gold X effective July 14, 2020, was determined by reference to the value of the shares received. Prior to electing to convert this convertible note receivable into common shares of Gold X, the Gold X Convertible Note was revalued quarterly using the same methodology as the Kutcho Convertible Note above. A continuity schedule of these convertible notes from January 1, 2019 to December 31, 2020 is presented below: Year Ended December 31, 2020 (in thousands) Fair Value at Amount Value Fair Value Fair Value at Kutcho $ 11,837 $ - $ - $ (484 ) $ 11,353 Gold X 10,019 - (12,402 ) 2,383 - Total $ 21,856 $ - $ (12,402 ) $ 1,899 $ 11,353 Year Ended December 31, 2019 (in thousands) Fair Value at Amount Value Fair Value Fair Value at Kutcho $ 12,899 $ - $ - $ (1,062 ) $ 11,837 Gold X - 10,000 - 19 10,019 Total $ 12,899 $ 10,000 $ - $ (1,043 ) $ 21,856

Long-Term Equity Investments

Long-Term Equity Investments	12 Months Ended
	Dec. 31, 2020
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Long-Term Equity Investments	15. Long-Term Equity Investments Common Shares Held Year Ended December 31, 2020 (in thousands) Shares % of Fair Value at Cost of 1 Proceeds of 2 Fair Value 3 Fair Value at Realized Gain Bear Creek 13,264 11.80% $ 27,983 $ - $ - $ 4,626 $ 32,609 $ - Sabina 11,700 3.59% 17,296 - - 12,937 30,233 - First Majestic 7,155 3.23% 248,137 - (151,113 ) (1,040 ) 95,984 56,644 Other 16,341 23,570 (11,829 ) 9,333 37,415 4,170 Total $ 309,757 $ 23,570 $ (162,942 ) $ 25,856 $ 196,241 $ 60,814 1) Includes,4,467,317 common shares of Gold X received upon the conversion of the Gold X Convertible Note (see Note 14). 2) Disposals during 2020 were made in order to capitalize on the share appreciation related to the strong commodity price environment. 3) Fair Value Gains (Losses) are reflected as a component of OCI. Year Ended December 31, 2019 (in thousands) Shares % of Fair Value at Cost of Proceeds of 1 Fair Value 2 Fair Value at Realized Gain Bear Creek 13,264 12.84% $ 10,112 $ - $ - $ 17,871 $ 27,983 $ - Sabina 11,700 3.95% 10,549 - - 6,747 17,296 - First Majestic 20,240 9.73% 123,187 - (5,395 ) 130,345 248,137 521 Other 20,905 893 (12,430 ) 6,973 16,341 (7,803 ) Total $ 164,753 $ 893 $ (17,825 ) $ 161,936 $ 309,757 $ (7,282 ) 1) Disposals of First Majestic shares during 2019 were initiated in order to reduce the Company’s ownership position in First Majestic to under 10% of the issued and outstanding common shares, while disposals of shares classified as Other were initiated as the holdings were no longer considered to have strategic value. 2) Fair value gains (losses) are reflected as a component of OCI. Warrants Held Year Ended December 31, 2020 (in thousands) Fair Value at Cost of 1 Value of Fair Value Fair Value at Other $ - $ 3,299 $ - $ 338 $ 3,637 1) Includes 2 million common share purchase warrants from Alexco with a fair value of $2 million (Note 10), Year Ended December 31, 2019 (in thousands) Fair Value at Cost of Value of Fair Value Fair Value at Other $ - $ 16 $ - $ (16) $ - The Company’s long-term investments in common shares (“LTI’s”) are held for long-term strategic purposes and not for trading purposes. As such, the Company has elected to reflect any fair value adjustments, net of tax, as a component of other comprehensive income (“OCI”). The cumulative gain or loss will not be reclassified to net earnings on disposal of these long-term investments but is reclassified to retained earnings. While long-term investments in warrants are also held for long-term strategic purposes, they meet the definition of a derivative and therefore are classified as financial assets with fair value adjustments being recorded as a component of net earnings under the classification Other (Income) Expense. Warrants that do not have a quoted market price are valued using a Black-Scholes option pricing model. By holding these long-term investments, the Company is inherently exposed to various risk factors including currency risk, market price risk and liquidity risk.

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2020
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Property, Plant and Equipment	16. Property, Plant and Equipment December 31, 2020 (in thousands) Leasehold Right of Use Other Total Cost Balance - January 1, 2020 $ 4,380 $ 4,738 $ 3,836 $ 12,954 Additions 2 55 429 486 Disposals - - (134) (134) Balance - December 31, 2020 $ 4,382 $ 4,793 $ 4,131 $ 13,306 Accumulated Depreciation Balance - January 1, 2020 $ (2,518) $ (704) $ (2,421) $ (5,643) Disposals - - 134 134 Depreciation (388) (740) (380) (1,508) Balance - December 31, 2020 $ (2,906) $ (1,444) $ (2,667) $ (7,017) Net book value - December 31, 2020 $ 1,476 $ 3,349 $ 1,464 $ 6,289 December 31, 2019 (in thousands) Leasehold Right of Use Other Total Cost Balance - January 1, 2019 $ 4,378 $ - $ 3,318 $ 7,696 Additions upon adoption of IFRS 16 - 4,679 - 4,679 Additions 9 59 547 615 Disposals (7) - (29) (36) Balance - December 31, 2019 $ 4,380 $ 4,738 $ 3,836 $ 12,954 Accumulated Depreciation Balance - January 1, 2019 $ (2,024) $ - $ (2,046 ) $ (4,070) Disposals 7 - 29 36 Depreciation (501) (704) (404) (1,609) Balance - December 31, 2019 $ (2,518) $ (704) $ (2,421) $ (5,643) Net book value - December 31, 2019 $ 1,862 $ 4,034 $ 1,415 $ 7,311

Credit Facilities

Credit Facilities	12 Months Ended
	Dec. 31, 2020
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Credit Facilities	17. Credit Facilities 17.1. Bank Debt December 31 December 31 (in thousands) 2020 2019 Current portion $ - $ - Long-term portion 195,000 874,500 Gross bank debt outstanding 1 $ 195,000 $ 874,500 1) There is $5 million unamortized debt issue costs associated with the Revolving Facility which have been recorded as a long-term asset under the classification Other (see Note 25). On February 27, 2020, the term of the Company’s $2 billion revolving term loan (“Revolving Facility”) was extended by an additional year, with the facility now maturing on February 27, 2025. The Company incurred fees of $1 million in relation to this extension. The Company’s Revolving Facility has financial covenants which require the Company to maintain: (i) a net debt to tangible net worth ratio of less than or equal to 0.75:1; and (ii) an interest coverage ratio of greater than or equal to 3.00:1. Only cash interest expenses are included for the purposes of calculating the interest coverage ratio. The Company is in compliance with these debt covenants as at December 31, 2020. Effective February 27, 2020, at the Company’s option, amounts drawn under the Revolving Facility incur interest based on the Company’s leverage ratio at either (i) LIBOR plus 1.00% to 2.05%; or (ii) the Bank of Nova Scotia’s Base Rate plus 0.00% to 1.05%. Undrawn amounts under the Revolving Facility are subject to a stand-by The Revolving Facility, which is classified as a financial liability and reported at amortized cost using the effective interest method, can be drawn down at any time to finance acquisitions, investments or for general corporate purposes. 17.2. Lease Liabilities The lease liability relative to the Company’s offices located in Vancouver, Canada and the Cayman Islands is as follows: December 31 December 31 (in thousands) 2020 2019 Current portion $ 773 $ 724 Long-term portion 2,864 3,528 Total lease liabilities $ 3,637 $ 4,252 The maturity analysis of these leases is as follows: December 31 (in thousands) 2020 Not later than 1 year $ 773 Later than 1 year and not later than 5 years 2,864 Later than 5 years - Total lease liabilities $ 3,637 17.3. Finance Costs A summary of the Company’s finance costs relative to the above facilities during the period is as follows: Years Ended December 31 (in thousands) Note 2020 2019 Interest Expense During Period Average principal outstanding during period $ 601,112 $ 1,099,846 Average effective interest rate during period 17.1 2.03% 4.07% Total interest expense incurred during period $ 12,226 $ 44,767 Costs related to undrawn credit facilities 17.1 4,349 3,834 Interest expense - lease liabilities 17.2 140 175 Letters of guarantee - (46) Total finance costs $ 16,715 $ 48,730

Issued Capital

Issued Capital	12 Months Ended
	Dec. 31, 2020
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Issued Capital	18. Issued Capital December 31 December 31 (in thousands) Note 2020 2019 Issued capital Share capital issued and outstanding: 449,458,394 common shares (December 31, 2019: 447,771,433 common shares) 18.1 $ 3,646,291 $ 3,599,203 18.1. Shares Issued The Company is authorized to issue an unlimited number of common shares having no par value and an unlimited number of preference shares issuable in series. As at December 31, 2020, the Company had no preference shares outstanding. A continuity schedule of the Company’s issued and outstanding common shares from January 1, 2019 to December 31, 2020 is presented below: Number Weighted At January 1, 2019 444,336,361 Share purchase options exercised 1 2,039,735 Cdn$25.79 Restricted share units released 1 133,670 Cdn$0.00 Dividend reinvestment plan 2 1,261,667 US$24.31 At December 31, 2019 447,771,433 Share purchase options exercised 1 1,056,363 Cdn$25.70 Restricted share units released 1 128,405 Cdn$0.00 Dividend reinvestment plan 2 502,193 US$37.87 At December 31, 2020 449,458,394 1) The weighted average price of share purchase options exercised and restricted share units released represents the respective exercise price. 2) The Company has implemented a dividend reinvestment plan (“DRIP”) whereby shareholders can elect to have dividends reinvested directly into additional Wheaton common shares. The weighted average price for common shares issued under the DRIP represents the volume weighted average price of the common shares on the five trading days preceding the dividend payment date, less a discount of 1% (2019 – 3%). At the Market Equity Program On April 16, 2020, the Company established an at-the-market The ATM Program will be effective until the date that all Common Shares available for issue under the ATM Program have been issued or the ATM Program is terminated prior to such date by the Company or the agents under the equity offering sales agreement dated April 16, 2020. Wheaton intends that the net proceeds from the ATM Program, if any, will be available as one potential source of funding for stream acquisitions and/or other general corporate purposes including the repayment of indebtedness. As at December 31, 2020, the Company has not issued any shares under the ATM program. 18.2. Dividends Declared Years Ended December 31 (in thousands, except per share amounts) 2020 2019 Dividends declared per share $ 0.42 $ 0.36 Average number of shares eligible for dividend 448,777 446,267 Total dividends paid $ 188,486 $ 160,656 Paid as follows: Cash $ 167,211 89 % $ 129,986 81% DRIP 1 21,275 11 % 30,670 19% Total dividends paid $ 188,486 100 % $ 160,656 100% Shares issued under the DRIP 502 1,262 1) The Company has implemented a DRIP whereby shareholders can elect to have dividends reinvested directly into additional Wheaton common shares. 2) As at December 31, 2020, cumulative dividends of $1,267 million have been declared and paid by the Company.

Reserves

Reserves	12 Months Ended
	Dec. 31, 2020
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Reserves	19. Reserves Note December 31 December 31 (in thousands) 2020 2019 Reserves Share purchase warrants 19.1 $ 83,077 $ 83,077 Share purchase options 19.2 21,855 24,010 Restricted share units 19.3 6,815 6,405 Long-term investment revaluation reserve, net of tax 19.4 15,135 47,209 Total reserves $ 126,882 $ 160,701 19.1. Share Purchase Warrants The Company’s share purchase warrants (“warrants”) are presented below: Number of Weighted Exchange Share Warrants outstanding 10,000,000 $43.75 1.00 $ 83,077 The warrants expire on February 28, 2023. Each warrant entitles the holder the right to purchase one of the Company’s common shares. 19.2. Share Purchase Options The Company has established an equity settled share purchase option plan whereby the Company’s Board of Directors may, from time to time, grant options to employees or consultants. The maximum term of any share purchase option may be ten years, but generally options are granted with a term to expiry of five years. The exercise price of an option is not less than the closing price on the TSX on the last trading day preceding the grant date. The vesting period of the options is determined at the discretion of the Company’s Board of Directors at the time the options are granted, but generally vest over a period of two years. Each share purchase option converts into one common share of Wheaton on exercise. No amounts are paid or payable by the recipient on receipt of the option. The options do not carry rights to dividends or voting rights. Options may be exercised at any time from the date of vesting to the date of their expiry, subject to certain black-out The Company expenses the fair value of share purchase options that are expected to vest on a straight-line basis over the vesting period using the Black-Scholes option pricing model to estimate the fair value for each option at the date of grant. The Black-Scholes model was developed for use in estimating the fair value of traded options that have no vesting restrictions. The model requires the use of subjective assumptions, including expected share price volatility. Historical data has been considered in setting the assumptions. Expected volatility is determined by considering the trailing 30-month Years Ended December 31 2020 2019 Black-Scholes weighted average assumptions Grant date share price and exercise price Cdn$33.47 Cdn$32.88 Expected dividend yield 1.78% 1.49% Expected volatility 30% 31% Risk-free interest rate 0.52% 1.60% Expected option life, in years 2.5 2.5 Weighted average fair value per option granted Cdn$5.57 Cdn$6.10 Number of options issued during the period 451,110 583,500 Total fair value of options issued (000’s) $ 1,807 $ 2,652 The following table summarizes information about the options outstanding and exercisable at December 31, 2020: Exercise Price (Cdn$) Exercisable Non-Exercisable Total Options Weighted $22.82¹ 8,000 - 8,000 0.3 years $23.26 250,000 - 250,000 0.3 years $25.99¹ 14,880 - 14,880 2.3 years $26.24 318,755 - 318,755 2.3 years $26.27¹ 12,400 - 12,400 1.3 years $27.03 1,115 1,115 2,230 3.4 years $27.51 205,150 - 205,150 1.3 years $30.66¹ - 76,800 76,800 4.2 years $30.82 1,492 2,985 4,477 3.5 years $31.26¹ 26,640 47,740 74,380 3.3 years $32.93 215,035 232,820 447,855 3.3 years $33.47 - 371,890 371,890 4.2 years 1,053,467 733,350 1,786,817 2.6 years 1) US$ share purchase options converted to Cdn$ using the exchange rate of 1.2732, being the Cdn$/US$ exchange rate at December 31, 2020. A continuity schedule of the Company’s outstanding share purchase options from January 1, 2019 to December 31, 2020 is presented below: Number of Weighted At January 1, 2019 3,883,350 Cdn$25.71 Granted (fair value - $3 million or Cdn$6.10 per option) 583,500 32.88 Exercised (2,039,735) 25.79 Forfeited (15,475) 31.04 Expired (17,150) 30.69 At December 31, 2019 2,394,490 Cdn$27.08 Granted (fair value - $2 million or Cdn$5.57 per option) 451,110 33.47 Exercised (1,056,363) 25.70 Forfeited (2,420) 32.01 At December 31, 2020 1,786,817 Cdn$29.54 As it relates to share purchase options, during the year ended December 31, 2020, the weighted average share price at the time of exercise was Cdn$54.13 per share, as compared to Cdn$34.83 per share during the comparable period in 2019. 19.3. Restricted Share Units (“RSUs”) The Company has established an RSU plan whereby RSUs will be issued to eligible employees or directors as determined by the Company’s Board of Directors or the Company’s Compensation Committee. RSUs give the holder the right to receive a specified number of common shares at the specified vesting date. RSUs generally vest over a period of two years. Compensation expense related to RSUs is recognized over the vesting period based upon the fair value of the Company’s common shares on the grant date and the awards that are expected to vest. The fair value is calculated with reference to the closing price of the Company’s common shares on the TSX on the business day prior to the date of grant. RSU holders receive a cash payment based on the dividends paid on the Company’s common shares in the event that the holder of a vested RSU has elected to defer the release of the RSU to a future date. This cash payment is reflected as a component of net earnings under the classification General and Administrative. A continuity schedule of the Company’s restricted share units outstanding from January 1, 2019 to December 31, 2020 is presented below: Number of Weighted At January 1, 2019 370,133 $20.36 Granted (fair value - $3 million) 132,620 24.51 Released (133,670) 20.82 Forfeited (2,760) 23.19 At December 31, 2019 366,323 $21.67 Granted (fair value - $3 million) 132,960 24.26 Released (128,405) 22.25 Forfeited (620) 24.11 At December 31, 2020 370,258 $22.40 During the year ended December 31, 2020, the Company issued 132,960 RSUs with a fair value of $3 million or Cdn$33.73 per RSU. For the same period in 2019, the Company issued 132,620 RSUs with a fair value of $3 million or Cdn$32.89 per RSU. 19.4. Long-Term Investment Revaluation Reserve The Company’s long-term investments in common shares (Note 15) are held for long-term strategic purposes and not for trading purposes. The Company has chosen to designate these long-term investments in common shares as financial assets with fair value adjustments being recorded as a component of OCI as it believes that this provides a more meaningful presentation for long-term strategic investments, rather than reflecting changes in fair value as a component of net earnings. As some of these long-term investments are denominated in Canadian dollars, changes in their fair value is affected by both the change in share price in addition to changes in the Cdn$/US$ exchange rate. Where the fair value of a long-term investment in common shares held exceeds its tax cost, the Company recognizes a deferred income tax liability. To the extent that the value of the long-term investment subsequently declines, the deferred income tax liability is reduced. However, where the fair value of the long-term investment decreases below the tax cost, the Company does not recognize a deferred income tax asset on the unrealized capital loss unless it is probable that the Company will generate future capital gains that will offset the loss. A continuity schedule of the Company’s long-term investment revaluation reserve from January 1, 2019 to December 31, 2020 is presented below: (in thousands) Change in Deferred Total At January 1, 2019 $ (112,156) $ - $ (112,156) Unrealized gain (loss) on LTIs 1 161,936 (9,623) 152,313 Reallocate reserve to retained earnings upon disposal of LTIs 1 7,282 (230) 7,052 At December 31, 2019 $ 57,062 $ (9,853) $ 47,209 Unrealized gain (loss) on LTIs 1 25,856 (1,866) 23,990 Reallocate reserve to retained earnings upon disposal of LTIs 1 15 (60,815) 4,751 (56,064) At December 31, 2020 $ 22,103 $ (6,968) $ 15,135 1) LTIs refers to long-term investments in common shares held.

Stock Based Compensation

Stock Based Compensation	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Stock Based Compensation	20. Stock Based Compensation The Company’s stock based compensation consists of share purchase options (Note 19.2), restricted share units (Note 19.3) and performance share units (Note 20.1). The accrued value of share purchase options and restricted share units are reflected as reserves in the shareholder’s equity section of the Company’s balance sheet while the accrued value associated with performance share units is reflected as an accrued liability. 20.1. Performance Share Units (“PSUs”) The Company has established a Performance Share Unit Plan (“the PSU plan”) whereby PSUs will be issued to eligible employees as determined by the Company’s Board of Directors or the Company’s Compensation Committee. PSUs issued under the PSU plan entitle the holder to a cash payment at the end of a three year performance period equal to the number of PSUs granted, multiplied by a performance factor and multiplied by the fair market value of a Wheaton common share on the expiry of the performance period. The performance factor can range from 0% to 200% and is determined by comparing the Company’s total shareholder return to those achieved by various peer companies, the Philadelphia Gold and Silver Index and the price of gold and silver. Compensation expense for the PSUs is recorded on a straight-line basis over the three year vesting period. The amount of compensation expense is adjusted at the end of each reporting period to reflect (i) the fair value of common shares; (ii) the number of PSUs anticipated to vest; and (iii) the anticipated performance factor. During the year ended December 31, 2020, the Company issued 193,830 PSUs as compared to 191,410 PSUs during the comparable period of the previous year. A continuity schedule of the Company’s outstanding PSUs (assuming a performance factor of 100% is achieved over the performance period) and the Company’s PSU accrual from January 1, 2019 to December 31, 2020 is presented below: (in thousands, except for number of PSUs outstanding) Number of PSU accrual At January 1, 2019 655,727 $ 10,756 Granted 191,410 - Accrual related to the fair value of the PSUs outstanding - 17,174 Foreign exchange adjustment - 479 Paid (229,050) (9,325) Forfeited (13,395) (15) At December 31, 2019 604,692 $ 19,069 Granted 193,830 - Accrual related to the fair value of the PSUs outstanding - 21,526 Foreign exchange adjustment - 614 Paid (204,142) (12,123) Forfeited (1,230) (5) At December 31, 2020 593,150 $ 29,081 A summary of the PSUs outstanding at December 31, 2020 is as follows: Year Year of Number Estimated Anticipated Percent of PSU 2018 2021 213,820 $43.82 200% 92% 17,297 2019 2022 186,730 $42.98 193% 59% 9,140 2020 2023 192,600 $42.40 122% 26% 2,644 593,150 $ 29,081

Earnings per Share ("EPS") and

Earnings per Share ("EPS") and Diluted Earnings per Share ("Diluted EPS")	12 Months Ended
	Dec. 31, 2020
Profit or loss [abstract]
Earnings per Share ("EPS") and Diluted Earnings per Share ("Diluted EPS")	21. Earnings per Share (“EPS”) and Diluted Earnings per Share (“Diluted EPS”) Diluted earnings per share is calculated using the treasury method which assumes that outstanding share purchase options and warrants, with exercise prices that are lower than the average market price of the Company’s common shares for the relevant period, are exercised and the proceeds are used to purchase shares of the Company at the average market price of the common shares for the relevant period. Diluted EPS is calculated based on the following weighted average number of shares outstanding: Years Ended December 31 (in thousands) 2020 2019 Basic weighted average number of shares outstanding 448,694 446,021 Effect of dilutive securities Share purchase options 1,003 627 Restricted share units 373 282 Diluted weighted average number of shares outstanding 450,070 446,930 The following table lists the number of share purchase options and share purchase warrants excluded from the computation of diluted earnings per share because the exercise prices exceeded the average market value of the common shares of Cdn$54.79, compared to Cdn$32.40 for the comparable period in 2019. Years Ended December 31 (in thousands) 2020 2019 Share purchase options - 477 Share purchase warrants 10,000 10,000 Total 10,000 10,477

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Supplemental Cash Flow Information	22. Supplemental Cash Flow Information Change in Non-Cash Years Ended December 31 (in thousands) 2020 2019 Change in non-cash Accounts receivable $ (1,181) $ (2,514) Accounts payable and accrued liabilities 3,110 (9,791) Other (904) 468 Total change in non-cash $ 1,025 $ (11,837) Non-Cash As more fully described in Note 18.2, during the year ended December 31, 2020, the Company declared and paid dividends to its shareholders in the amount of $0.42 per common share for total dividends of $189 million. Approximately 11% of shareholders elected to have their dividends reinvested in common shares of the Company under the Company’s dividend reinvestment plan (“DRIP”). As a result, $168 million of dividend payments were made in cash and $21 million in common shares issued. For the comparable period in 2019, the Company declared and paid dividends to its shareholders in the amount of $0.36 per common share for total dividends of $161 million, with the payment being comprised of $130 million in cash and $31 million in common shares issued. Non-Cash As more fully described in notes 10 and 15, during 2020 the Company received 2 million common share purchase warrants from Alexco with a fair value of $2 million. Non-Cash As more fully described in notes 14 and 15, on July 14, 2020, the Company elected to convert the Gold X Convertible Note and, as a result, the Company received 4,467,317 common shares of Gold X with a fair value of $12 million.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Income Taxes	23. Income Taxes A summary of the Company’s income tax expense (recovery) is as follows: Income tax recognized in net earnings is comprised of the following: Years Ended December 31 (in thousands) 2020 2019 Current income tax expense (recovery) $ (4,606 ) $ 144 Deferred income tax expense (recovery) related to: Origination and reversal of temporary differences $ 14,546 $ 7,311 Write down (reversal of write down) or recognition of prior period temporary differences (12,415 ) (16,521 ) Total deferred income tax expense (recovery) $ 2,131 $ (9,210 ) Income tax expense (recovery) recognized in net earnings $ (2,475 ) $ (9,066 ) Income tax recognized as a component of OCI is comprised of the following: Years Ended December 31 (in thousands) 2020 2019 Income tax expense (recovery) related to LTIs - common shares held $ 1,866 $ 9,623 Income tax recognized directly in equity is comprised of the following: Years Ended December 31 (in thousands) 2020 2019 Income tax expense (recovery) recognized in equity $ 820 $ (376 ) The provision for income taxes differs from the amount that would be obtained by applying the statutory income tax rate to consolidated earnings before income taxes due to the following: Years Ended December 31 (in thousands) 2020 2019 Earnings before income taxes $ 505,329 $ 77,072 Canadian federal and provincial income tax rates 27.00% 27.00% Income tax expense (recovery) based on above rates $ 136,439 $ 20,809 Non-deductible 3,057 3,362 Differences in tax rates in foreign jurisdictions (134,206 ) (78,724 ) Current period unrecognized temporary differences - impairment of mineral stream interests - 44,796 Current period unrecognized temporary differences 4,650 17,212 Write down (reversal of write down) or recognition of prior period temporary differences (12,415 ) (16,521 ) Income tax expense (recovery) $ (2,475 ) $ (9,066 ) The majority of the Company’s income generating activities, including the sale of precious metals, is conducted by its 100% owned subsidiary Wheaton Precious Metals International Ltd., which operates in the Cayman Islands and is not subject to income tax. The recognized deferred income tax assets and liabilities are offset on the balance sheet and relate to Canada, except for the foreign withholding tax. The movement in deferred income tax assets and liabilities for the years ended December 31, 2020 and December 31, 2019, respectively, is shown below: Year Ended December 31, 2020 Opening Recovery Recovery Recovery Closing Recognized deferred income tax assets and liabilities Deferred tax assets Non-capital 1 $ 8,756 $ (2,077 ) $ - $ (785 ) $ 5,894 Capital loss carryforward 2 8,953 (4,733 ) (3,459 ) - 761 Other 3 694 4,806 - - 5,500 Deferred tax liabilities Interest capitalized for accounting (87 ) - - - (87 ) Debt and share financing fees 4 (711 ) 18 - (35 ) (728 ) Unrealized gains on long-term investments (14,073 ) (79 ) 6,344 - (7,808 ) Mineral stream interests 5 (3,532 ) - - - (3,532 ) Foreign withholding tax (148 ) (66 ) - - (214 ) Total $ (148 ) $ (2,131 ) $ 2,885 $ (820 ) $ (214 ) 1) As at December 31, 2020, the Company had recognized the tax effect on $22 million of non-capital 2) As at December 31, 2020, the Company had recognized the tax effect on $3 million of net capital losses to offset unrealized taxable capital gains on long-term investments. 3) Other includes capital assets, charitable donation carryforward and PSU and pension liabilities. 4) Debt and share financing fees are deducted over a five year period for Canadian income tax purposes. For accounting purposes, debt financing fees are deducted over the term of the credit facility and share financing fees are charged directly to issued capital. 5) The Company’s position, as reflected in its filed Canadian income tax returns and consistent with the terms of the PMPAs, is that the cost of the precious metal acquired under the Canadian PMPAs is equal to the market value while a deposit is outstanding (where applicable to an agreement), and the cash cost thereafter. For accounting purposes, the cost of the mineral stream interests is depleted on a unit-of-production Year Ended December 31, 2019 Opening Recovery Recovery Recovery Closing Recognized deferred income tax assets and liabilities Deferred tax assets Non-capital $ 3,823 $ 4,497 $ - $ 436 $ 8,756 Capital loss carryforward - 4,503 4,450 - 8,953 Other 387 307 - - 694 Deferred tax liabilities Interest capitalized for accounting (87 ) - - - (87 ) Debt and share financing fees (591 ) (60 ) - (60 ) (711 ) Unrealized gains on long-term investments - - (14,073 ) - (14,073 ) Mineral stream interests (3,532 ) - - - (3,532 ) Foreign withholding tax (111 ) (37 ) - - (148 ) Total $ (111 ) $ 9,210 $ (9,623 ) $ 376 $ (148 ) Deferred income tax assets in Canada not recognized are shown below: (in thousands) December 31 December 31 Non-capital 1 $ 26,313 $ 19,145 Debt and equity financing fees - 1,383 Mineral stream interests 96,646 107,785 Other 2,296 4,282 Kutcho Convertible Note 1,330 951 Unrealized losses on long-term investments 5,125 6,733 Total $ 131,710 $ 140,279 1) As at December 31, 2020, the Company had not recognized the tax effect on $97 million of non-capital Deferred income taxes have not been provided on the temporary difference relating to investments in foreign subsidiaries for which the Company can control the timing of and manner in which funds are repatriated and does not plan to repatriate funds to Canada in the foreseeable future that would be subject to tax. The temporary difference relating to investments in foreign subsidiaries is $1.0 billion as at December 31, 2020, all of which is anticipated to reverse in the future and be exempt from tax on repatriation, leaving nil that would taxable on repatriation. At December 31, 2020, the Company has available non-capital non-capital

Other Current Assets

Other Current Assets	12 Months Ended
	Dec. 31, 2020
Miscellaneous current assets [abstract]
Other Current Assets	24. Other Current Assets The composition of other current assets is shown below: December 31 December 31 (in thousands) Note 2020 2019 Non-revolving $ 813 $ 431 Prepaid expenses 2,388 1,492 Class action settlement recoverable 28 - 41,500 Other 64 205 Total other current assets $ 3,265 $ 43,628 Non-revolving On November 25, 2019, the Company entered into a non-revolving

Other Long-Term Assets

Other Long-Term Assets	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Other Long-Term Assets	25. Other Long-Term Assets The composition of other long-term assets is shown below: December 31 December 31 (in thousands) Note 2020 2019 Intangible assets $ 3,036 $ 3,419 Debt issue costs - Revolving Facility 17.1 5,202 5,154 Other 5,004 6,875 Total other long-term assets $ 13,242 $ 15,448

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Related Party Transactions	26. Related Party Transactions Compensation of Key Management Personnel Key management personnel compensation, including directors, is as follows: Years Ended December 31 (in thousands) 2020 2019 Short-term benefits 1 $ 8,031 $ 6,599 Post-employment benefits 658 661 PSUs 2 12,528 10,643 Equity settled stock based compensation (a non-cash 3 3,555 3,709 Total executive compensation $ 24,772 $ 21,612 1) Short-term employee benefits include salaries, bonuses payable within twelve months of the balance sheet date and other annual employee benefits. 2) As more fully disclosed in Note 20.1, PSU compensation expense is recorded on a straight-line basis over the three year vesting period, with the expense being adjusted at the end of each reporting period to reflect (i) the fair value of common shares; (ii) the number of PSUs anticipated to vest; and (iii) the anticipated performance factor. 3) As more fully disclosed in Notes 19.2 and 19.3, equity settled stock based compensation expense is recorded on a straight-line basis over the vesting period.

Post-Employment Benefit Costs

Post-Employment Benefit Costs	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Post-Employment Benefit Costs	27. Post-Employment Benefit Costs The Company sponsors a Group Registered Retirement Savings Plan (“RRSP”) for all qualified employees. Participants in the plan can elect to contribute up to 8% of their annual base salary and cash bonus, and the Company will contribute 125% of this amount, up to a maximum of 5/9ths of the RRSP dollar limit as established under the Income Tax Act (Canada). The assets of the Group RRSP are held separately from those of the Company in independently administered funds. During 2019, the Company implemented an unregistered and unfunded defined contribution plan (known as the Supplemental Employee Retirement Plan, or the “SERP”) for all qualified employees. Under the terms of the SERP, benefits accumulate equal to 10% (or 15% for certain senior employees) of the employee’s base salary plus target bonus, less amounts contributed by the Company under the Group RRSP plan. Interest on this benefit accrues annually based on the 5-year 10-year A summary of the Company’s post-employment benefit costs during the years ended December 31, 2020 and 2019 is summarized below: Years Ended December 31 (in thousands) 2020 2019 Post-employment benefits Supplemental Employee Retirement Plan (SERP) $ 806 $ 810 Group RRSP 257 223 Total post-employment benefits $ 1,063 $ 1,033

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Commitments and Contingencies	28. Commitments and Contingencies Mineral Stream Interests The following table summarizes the Company’s commitments to make per-ounce Mineral Stream Interests Attributable Payable Production to be Per Unit of Measurement Cash Payment 1 Term of Date of Gold Silver Palladium Cobalt Gold Silver Palladium Cobalt Peñasquito 0% 25% 0% 0% n/a $ 4.29 n/a n/a Life of Mine 24-Jul-07 Constancia 50% 100% 0% 0% $ 408 ² $ 6.02 ² n/a n/a Life of Mine 8-Aug-12 Salobo 75% 0% 0% 0% $ 412 n/a n/a n/a Life of Mine 28-Feb-13 Sudbury 70% 0% 0% 0% $ 400 n/a n/a n/a 20 years 28-Feb-13 Antamina 0% 33.75% 0% 0% n/a 20% n/a n/a Life of Mine 3-Nov-15 San Dimas variable ³ 0% ³ 0% 0% $ 606 n/a n/a n/a Life of Mine 10-May-18 Stillwater 100% 0% 4.5% 4 0% 18% 5 n/a 18% 5 n/a Life of Mine 16-Jul-18 Voisey’s Bay 0% 0% 0% 42.4% 6 n/a n/a n/a 18% 7 Life of Mine 11-Jun-18 Other Los Filos 0% 100% 0% 0% n/a $ 4.46 n/a n/a 25 years 15-Oct-04 Zinkgruvan 0% 100% 0% 0% n/a $ 4.46 n/a n/a Life of Mine 8-Dec-04 Yauliyacu 0% 100% 8 0% 0% n/a $ 8.94 9 n/a n/a Life of Mine 23-Mar-06 Stratoni 0% 100% 0% 0% n/a $ 11.43 10 n/a n/a Life of Mine 23-Apr-07 Neves-Corvo 0% 100% 0% 0% n/a $ 4.34 n/a n/a 50 years 5-Jun-07 Aljustrel 0% 100% ¹¹ 0% 0% n/a 50% n/a n/a 50 years 5-Jun-07 Minto 100% ¹² 100% 0% 0% 75% ¹³ $ 4.31 n/a n/a Life of Mine 20-Nov-08 Keno Hill 0% 25% 0% 0% n/a variable 14 n/a n/a Life of Mine 2-Oct-08 Pascua-Lama 0% 25% 0% 0% n/a $ 3.90 n/a n/a Life of Mine 8-Sep-09 Rosemont 100% 100% 0% 0% $ 450 $ 3.90 n/a n/a Life of Mine 10-Feb-10 Loma de La Plata 0% 12.5% 0% 0% n/a $ 4.00 n/a n/a Life of Mine n/a 15 777 50% 100% 0% 0% $ 425 ² $ 6.26 ² n/a n/a Life of Mine 8-Aug-12 Marmato 6.5% 16 100% 16 0% 0% 18% 17 18% 17 n/a n/a Life of Mine 5-Nov-20 Cozamin 0% 50% 18 0% 0% n/a 10% n/a n/a Life of Mine 10-Dec-20 Early Deposit Toroparu 10% 50% 0% 0% $ 400 $ 3.90 n/a n/a Life of Mine 11-Nov-13 Cotabambas 25% 19 100% 19 0% 0% $ 450 $ 5.90 n/a n/a Life of Mine 21-Mar-16 Kutcho 100% 20 100% 20 0% 0% 20% 20% n/a n/a Life of Mine 14-Dec-17 1) The production payment is measured as either a fixed amount per ounce of metal delivered, or as a percentage of the spot price of the underlying metal on the date of delivery. Contracts where the payment is a fixed amount per ounce of metal delivered are subject to an annual inflationary increase, with the exception of Loma de La Plata and Sudbury. Additionally, should the prevailing market price for the applicable metal be lower than this fixed amount, the per ounce cash payment will be reduced to the prevailing market price, with the exception of Yauliyacu where the per ounce cash payment will not be reduced below $4.44, subject to an annual inflationary factor. 2) Subject to an increase to $9.90 per ounce of silver and $550 per ounce of gold after the initial 40-year 3) Under the terms of the San Dimas PMPA, the Company is entitled to an amount equal to 25% of the payable gold production plus an additional amount of gold equal to 25% of the payable silver production converted to gold at a fixed gold to silver exchange ratio of 70:1 from the San Dimas mine. If the average gold to silver price ratio decreases to less than 50:1 or increases to more than 90:1 for a period of 6 months or more, then the “70” shall be revised to “50” or “90”, as the case may be, until such time as the average gold to silver price ratio is between 50:1 to 90:1 for a period of 6 months or more in which event the “70” shall be reinstated. Effective April 1, 2020, the fixed gold to silver exchange ratio was revised to 90:1, with the 70:1 ratio being reinstated on October 15, 2020. 4) The Company is committed to purchase 4.5% of Stillwater palladium production until 375,000 ounces are delivered to the Company, thereafter 2.25% of Stillwater palladium production until 550,000 ounces are delivered to the Company and 1% of Stillwater palladium production thereafter for the life of mine. 5) To be increased to 22% of the spot price once the market value of gold and palladium delivered to Wheaton, net of the per ounce cash payment, exceeds the initial upfront cash deposit. 6) Once the Company has received 31 million pounds of cobalt, the Company’s attributable cobalt production will be reduced to 21.2%. 7) To be increased to 22% of the spot price once the market value of cobalt delivered to Wheaton, net of the per pound cash payment, exceeds the initial upfront cash deposit. 8) The Company is committed to purchase an amount equal to 100% of the first 1.5 million ounces of payable silver produced at Yauliyacu per annum and 50% of any excess. 9) Should the market price of silver exceed $20 per ounce, in addition to the $8.94 per ounce, the Company is committed to pay Glencore an additional amount for each ounce of silver delivered equal to 50% of the excess, to a maximum of $10 per ounce, such that when the market price of silver is $40 or above, the Company will pay Glencore $18.94 per ounce of silver delivered. 10) In October 2015, in order to incentivize additional exploration and potentially extend the limited remaining mine life of Stratoni, Wheaton and Eldorado Gold agreed to modify the Stratoni PMPA such that the production price per ounce of silver delivered to Wheaton would be increased over the then fixed price based on the amount of drilling completed outside of the existing ore body and within Wheaton’s defined area of interest (“Expansion Drilling”) by December 31, 2020.The figures in the above table reflect the fact that Eldorado completed a total of 30,000 meters of Expansion Drilling, resulting in a $7.00 per ounce increase. 11) Wheaton only has the rights to silver contained in concentrate containing less than 15% copper at the Aljustrel mine. 12) The Company is committed to acquire 100% of the first 30,000 ounces of gold produced per annum and 50% thereafter. 13) The Company has amended the Minto PMPA such that the cash payment per ounce of gold delivered will be 75% of the spot price of gold. This amended pricing will end on the earlier of (i) 14 months after the first delivery is due; or (ii) once 11,000 ounces of gold have been delivered to the Company. Once this amended pricing ends, the cash payment per ounce of gold delivered will be $325, subject to an increase in periods where the market price of copper is lower than $2.50 per pound. 14) Effective July 2020, the price paid per ounce of silver delivered under the Keno Hill PMPA has been modified to be between 10% of the spot price of silver when the market price of silver is at or above $23.00 per ounce, to 90% of the spot price of silver when the market price of silver is at or below $15.00 per ounce. 15) Terms of the agreement not yet finalized. 16) Once Wheaton has received 190,000 ounces of gold and 2.15 million ounces of silver under the Marmato PMPA the Company’s attributable gold and silver production will be reduced to 3.25% and 50%, respectively. 17) To be increased to 22% of the spot price once the market value of gold and silver delivered to the Company, net of the per ounce cash payment, exceeds the initial upfront cash deposit. 18) Once Wheaton has received 10 million ounces, the Company’s attributable silver production will be reduced to 33% of silver production for the life of the mine. 19) Once 90 million silver equivalent ounces attributable to Wheaton have been produced, the attributable production will decrease to 16.67% of gold production and 66.67% of silver production for the life of mine. 20) Once 51,000 ounces of gold and 5.6 million ounces of silver have been delivered to Wheaton, attributable production will decrease to 66.67% of gold and silver production for the life of mine. Other Contractual Obligations and Contingencies Obligations With Scheduled Payment Dates (in thousands) 2021 2022 - 2024 2025 - 2026 After 2026 Sub-Total Other Total Bank debt 1 $ - $ - $ 195,000 $ - $ 195,000 $ - $ 195,000 Interest 2 2,311 8,722 622 - 11,655 - 11,655 Payments for mineral stream interests Rosemont 3 - - - - - 231,150 231,150 Loma de La Plata - - - - - 32,400 32,400 Marmato 38,000 - - - 38,000 72,000 110,000 Cozamin 4 150,000 - - - 150,000 - 150,000 Salobo 5 - 670,000 - - 670,000 - 670,000 Payments for early deposit mineral stream interest Toroparu - - - - - 138,000 138,000 Cotabambas 1,500 2,500 - - 4,000 126,000 130,000 Kutcho - - - - - 58,000 58,000 Non-revolving 6 208 - - - 208 - 208 Leases liabilities 895 2,733 336 - 3,964 - 3,964 Total contractual obligations $ 192,914 $ 683,955 $ 195,958 $ - $ 1,072,827 $ 657,550 $ 1,730,377 1) At December 31, 2020, the Company had $195 million drawn and outstanding on the Revolving Facility. 2) As the applicable interest rates are floating in nature, the interest charges are estimated based on market-based forward interest rate curves at the end of the reporting period combined with the assumption that the principal balance outstanding at December 31, 2020 does not change until the debt maturity date. 3) Includes contingent transaction costs of $1 million. 4) In connection with the Cozamin PMPA, the Company paid Capstone $150 million on February 19, 2021 once certain conditions had been met. 5) As more fully explained on the following page, assuming the Salobo III expansion project achieves 12 Mtpa of additional processing capacity (bringing total processing capacity at Salobo to 36 Mtpa) by the end of 2022, the Company would expect to pay an estimated expansion payment of between $570 million to $670 million. 6) Represents the maximum amount available to Kutcho under the non-revolving Rosemont The Company is committed to pay Hudbay total upfront cash payments of $230 million in two installments, with the first $50 million being advanced upon Hudbay’s receipt of permitting for the Rosemont project and other customary conditions and the balance of $180 million being advanced once project costs incurred on the Rosemont project exceed $98 million and certain other customary conditions. Under the Rosemont PMPA, the Company is permitted to elect to pay the deposit in cash or the delivery of common shares. Additionally, the Company will be entitled to certain delay payments, including where construction ceases in any material respect, or if completion is not achieved within agreed upon timelines. Hudbay and certain affiliates have provided the Company with a corporate guarantee and other security. On August 1, 2019, Hudbay announced that the U.S. District Court for the District of Arizona (“Court”) issued a ruling in the lawsuits challenging the U.S. Forest Service’s issuance of the Final Record of Decision (“FROD”) for the Rosemont project in Arizona. The Court ruled to vacate and remand the FROD such that Rosemont cannot proceed with construction at this time. On June 22, 2020 Hudbay announced that they had filed the initial brief with the U.S. Court of Appeals for the Ninth Circuit in relation to appealing this decision. As per Hudbay’s MD&A for the year ended December 31, 2020, final briefs were filed in November 2020 and the oral hearing was completed in early February 2021. Hudbay indicates that a decision from the Ninth Circuit is expected in the second half of 2021. Loma de La Plata In connection with the Loma de La Plata PMPA, the Company is committed to pay Pan American Silver Corp. (“Pan American”) total upfront cash payments of $32 million following the satisfaction of certain conditions, including Pan American receiving all necessary permits to proceed with the mine construction and the Company finalizing the definitive terms of the PMPA. Marmato In connection with the Marmato PMPA, the Company is committed to pay Aris Gold Corp. (“Aris Gold”) total upfront cash payments of $110 million, $34 million of which is payable once mining contract 014-89M Toroparu In connection with the Toroparu Early Deposit Agreement, the Company is committed to pay Gold X an additional $138 million, payable on an installment basis to partially fund construction of the mine. Following the delivery of certain feasibility documentation or after December 31, 2020 if the feasibility documentation has not been delivered to Wheaton by such date (or such date has not been extended), Wheaton may elect not to proceed with the agreement or not pay the balance of the upfront consideration and reduce the gold stream percentage from 10% to 0.909% and the silver stream percentage from 50% to nil. If Wheaton elects to terminate, Wheaton will be entitled to a return of the amounts advanced less $2 million which is non-refundable non-refundable. re-scoping Cotabambas In connection with the Cotabambas Early Deposit Agreement, the Company is committed to pay Panoro a total cash consideration of $140 million, of which $10 million has been paid to date. Once certain conditions have been met, the Company will advance an additional $4 million to Panoro, spread over up to three years. Following the delivery of a bankable definitive feasibility study, environmental study and impact assessment, and other related documents (collectively, the “Cotabambas Feasibility Documentation”), and receipt of permits and construction commencing, the Company may then advance the remaining deposit or elect to terminate the Cotabambas Early Deposit Agreement. If the Company elects to terminate, the Company will be entitled to a return of the portion of the amounts advanced less $2 million payable upon certain triggering events occurring. Kutcho In connection with the Kutcho Early Deposit Agreement, the Company is committed to pay Kutcho a total cash consideration of $65 million, of which $7 million has been paid to date. The remaining $58 million will be advanced on an installment basis to partially fund construction of the mine once certain conditions have been satisfied. The Company will be required to make an additional payment to Kutcho, of up to $20 million, if processing throughput is increased to 4,500 tonnes per day or more within 5 years of attaining commercial production. Salobo The Salobo mine currently has a mill throughput capacity of 24 million tonnes per annum (“Mtpa”). In October 2018, Vale’s Board of Directors approved the investment in the Salobo III mine expansion (the “Salobo Expansion”). The Salobo Expansion is proposed to include a third concentrator line and will use Salobo’s existing infrastructure. Vale anticipates that the Salobo Expansion, which is scheduled to start up in the first half of 2022 with a ramp-up If actual throughput is expanded above 28 Mtpa, then under the terms of the Salobo PMPA, Wheaton will be required to make an additional set payment to Vale based on the size of the expansion, the timing of completion and the grade of the material processed. The set payment ranges from $113 million if throughput is expanded beyond 28 Mtpa by January 1, 2036 up to $923 million if throughput is expanded beyond 40 Mtpa by January 1, 2022. Assuming the Salobo III expansion project achieves 12 Mtpa of additional processing capacity (bringing total processing capacity at Salobo to 36 Mtpa) by the end of 2022, the Company would expect to pay an estimated expansion payment of between $570 million to $670 million. The actual amount and timing of any expansion payment may significantly differ from this estimate depending on the size, timing and processed grade of any expansion. Canada Revenue Agency – Canada Revenue Agency – 2013-2015 Taxation Years - Domestic Reassessments The Company received Notices of Reassessment in 2018 and 2019 for the 2013 to 2015 taxation years in which the Canada Revenue Agency (“CRA”) is seeking to change the timing of the deduction of upfront payments with respect to the Company’s PMPAs relating to Canadian mining assets, so that the cost of precious metal acquired under these Canadian PMPAs is equal to the cash cost paid on delivery plus an amortized amount of the upfront payment determined on a units-of-production Management believes the Company’s position, as reflected in its filed Canadian income tax returns and consistent with the terms of the PMPAs, that the cost of the precious metal acquired under the Canadian PMPAs is equal to the market value while a deposit is outstanding, and the cash cost thereafter is correct. The Company has filed Notices of Objection and paid 50% of the disputed amounts in order to challenge the Domestic Reassessments. If CRA were to apply the methodology in the Domestic Reassessments to taxation years subsequent to 2015, the Company estimates that losses would arise that could be carried back to reduce tax and interest relating to the Domestic Reassessments to approximately $2 million. U.S. Shareholder Class Action During July 2015, after the Company disclosed that the CRA was proposing that they would issue notices of reassessment for federal and provincial tax, transfer pricing penalties, interest and other penalties for the 2005-2010 taxation years (the “Reassessments”), two putative securities class action lawsuits were filed against the Company in the U.S. District Court for the Central District of California in connection with the proposal (the “Complaints”). On October 19, 2015, the Complaints were consolidated into one action, In re Silver Wheaton Securities Litigation, as against the Company, Randy Smallwood, President & Chief Executive Officer, Gary Brown, Senior Vice President & Chief Financial Officer and Peter Barnes, former Chief Executive Officer (together the “Initial Defendants”) and a lead plaintiff (the “Plaintiff”) was selected. The Plaintiff filed a consolidated amended complaint in December 2015, which focuses on the Reassessments and asserted claims under Sections 10(b) and 20(a) of the Securities Exchange Act of 1934 (“Exchange Act”). On March 27, 2018, the court granted Plaintiff’s motion for leave to file a Second Amended Complaint, which alleges that Initial Defendants made false and/or misleading statements, as well as failed to disclose material adverse facts about the Company’s business, operations, prospects and performance in violation of Sections 10(b) and 20(a) of the Exchange Act, and adds a claim under Section 10(b) against our auditors (together with the “Initial Defendants, the “Defendants”). On August 3, 2020, the court issued their final approval of a settlement of the lawsuit for $41.5 million, without admission of liability by any of the Defendants. The settlement was fully funded by the Company’s insurance carriers and the other Defendants. The Company was not required to pay any portion of the settlement. Canadian Shareholder Class Action By Notice of Action dated August 10, 2016 (as amended September 2, 2016 and supplemented by Statement of Claim filed September 9, 2016 (collectively, the “Claim”)), proposed representative plaintiff Suzan Poirier commenced proceedings pursuant to the Class Proceedings Act (Ontario) in the Ontario Superior Court of Justice against Wheaton Precious Metals Corp., Randy Smallwood, President and Chief Executive Officer and Gary Brown, Senior Vice President & Chief Financial Officer. The Claim alleges, among other things, misrepresentation pursuant to primary and secondary market civil liability provisions under the Securities Act (Ontario) and its provincial equivalents, common law negligence and negligent misrepresentation. The claim focuses on the Reassessments. The Claim purports to be brought on behalf of proposed class of persons and entities who acquired common shares of Wheaton Precious Metals Corp. between August 14, 2013 and July 6, 2015 and held some or all of such common shares as of at least July 6, 2015. On July 21, 2020, the Company received a motion record in support of a proposed motion seeking the following (among other relief): (i) leave of the court to commence a secondary market action pursuant to section 138.3(1) of the Securities Act (Ontario) and equivalent provisions in the applicable provincial securities statutes: (ii) certification of the (amended) class and proposed common issues; (iii) leave to file an amended Statement of Claim to include further particulars and to refer to various provincial securities laws; and (iv) the appointment of a new class representative (Ms. Miriam Rosenszajn) in place of Ms. Poirier. The Company believes that the allegations are without merit and intends to vigorously defend against this matter. No amounts have been recorded for potential liability arising from this claim as no value has been specified in the statement of claim and the Company cannot reasonably predict the outcome. Tax Contingencies Due to the size, complexity and nature of the Company’s operations, various legal and tax matters are outstanding from time to time, including audits and disputes. Under the terms of the 2018 settlement with the CRA of the transfer pricing dispute relating to the 2005-2010 taxation years (“CRA Settlement”), income earned outside of Canada by the Company’s foreign subsidiaries will not be subject to income tax in Canada under transfer pricing rules. The CRA Settlement principles apply to all taxation years after 2010 subject to there being no material change in facts or change in law or jurisprudence. It is not known or determinable by the Company when any ongoing audits by CRA of international and domestic transactions will be completed, or whether reassessments will be issued, or the basis, quantum or timing of any such potential reassessments, and it is therefore not practicable for the Company to estimate the financial effect, if any, of any ongoing audits. From time to time there may also be proposed legislative changes to law or outstanding legal actions that may have an impact on applicable law or jurisprudence, the outcome, applicability and impact of which is also not known or determinable by the Company. General By their nature, contingencies will only be resolved when one or more future events occur or fail to occur. The assessment of contingencies inherently involves the exercise of significant judgment and estimates of the outcome of future events. If the Company is unable to resolve any of these matters favorably, there may be a material adverse impact on the Company’s financial performance, cash flows or results of operations. In the event that the Company’s estimate of the future resolution of any of the foregoing matters changes, the Company will recognize the effects of the change in its consolidated financial statements in the appropriate period relative to when such change occurs.

Segmented Information

Segmented Information	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Segmented Information	29. Segmented Information Operating Segments The Company’s reportable operating segments, which are the components of the Company’s business where discrete financial information is available and which are evaluated on a regular basis by the Company’s Chief Executive Officer (“CEO”), who is the Company’s chief operating decision maker, for the purpose of assessing performance, are summarized in the tables below: Year Ended December 31, 2020 Sales Cost Depletion Net Cash Flow Total (in thousands) Gold Salobo 4 $ 450,166 $ 104,545 $ 95,913 $ 249,708 $ 345,621 $ 2,509,344 Sudbury 1, 4 49,791 11,085 23,027 15,679 38,609 321,016 Constancia 25,556 5,812 4,837 14,907 19,744 105,569 San Dimas 68,519 23,541 12,165 32,813 44,978 182,202 Stillwater 22,353 4,003 5,684 12,666 18,351 224,310 Other 2, 4 36,442 8,443 5,642 22,357 28,007 7,526 Total gold interests $ 652,827 $ 157,429 $ 147,268 $ 348,130 $ 495,310 $ 3,349,967 Silver Peñasquito 4 $ 150,720 $ 31,704 $ 24,130 $ 94,886 $ 119,016 $ 350,572 Antamina 4 102,241 20,053 41,876 40,312 82,188 626,934 Constancia 31,285 8,745 11,143 11,397 22,541 217,044 Other 3, 4 115,379 41,027 10,892 63,460 74,159 474,975 Total silver interests $ 399,625 $ 101,529 $ 88,041 $ 210,055 $ 297,904 $ 1,669,525 Palladium Stillwater $ 43,772 $ 7,805 $ 8,580 $ 27,387 $ 35,967 $ 241,389 Cobalt Voisey’s Bay 4 $ - $ - $ - $ - $ - $ 227,510 Total mineral stream interests $ 1,096,224 $ 266,763 $ 243,889 $ 585,572 $ 829,181 $ 5,488,391 Other General and administrative $ (65,698 ) $ (46,914 ) Finance costs (16,715 ) (17,551 ) Other 2,170 677 Income tax 2,475 49 Total other $ (77,768 ) $ (63,739 ) $ 468,881 Consolidated $ 507,804 $ 765,442 $ 5,957,272 1) Comprised of the operating Coleman, Copper Cliff, Garson, Creighton and Totten gold interests as well as the non-operating 2) Where a gold interest represents less than 10% of the Company’s sales, gross margin or aggregate asset book value and is not evaluated on a regular basis by the Company’s CEO for the purpose of assessing performance, the gold interest has been summarized under Other gold interests. Other gold interests are comprised of the operating 777 and Minto gold interests, the non-operating 3) Where a silver interest represents less than 10% of the Company’s sales, gross margin or aggregate asset book value and is not evaluated on a regular basis by the Company’s CEO for the purpose of assessing performance, the silver interest has been summarized under Other silver interests. Other silver interests are comprised of the operating Los Filos, Zinkgruvan, Yauliyacu, Stratoni, Neves-Corvo, Aljustrel, Minto, Keno Hill and 777 silver interests, the non-operating 4) As it relates to mine operator concentration risk: a. The counterparty obligations under the Salobo, Sudbury and Voisey’s Bay PMPAs are guaranteed by the parent company Vale. Total revenues relative to Vale during the year ended December 31, 2020 were 46% of the Company’s total revenue. b. The counterparty obligations under the Antamina PMPA and the Yauliyacu PMPA (which is included as part of Other silver interests) are guaranteed by the parent company Glencore plc (“Glencore”) and its subsidiary. Total revenues relative to Glencore during the year ended December 31, 2020 were 12% of the Company’s total revenue. c. The counterparty obligations under the Peñasquito PMPA are guaranteed by the parent company Newmont Corporation (“Newmont”). Total revenues relative to Newmont during the year ended December 31, 2020 were 14% of the Company’s total revenue. Should any of these mine operators become unable or unwilling to fulfill their obligations under their agreements with the Company, there could be a material adverse impact on the Company including, but not limited to, the Company’s revenue, net income and cash flows from operations. Year Ended December 31, 2019 Sales Cost Depletion Gross Impairment 1 Net Cash Flow Total (in thousands) Gold Salobo 5 $ 365,448 $ 106,282 $ 100,803 $ 158,363 $ - $ 158,363 $ 259,166 $ 2,605,257 Sudbury 2, 5 38,234 10,946 22,420 4,868 - 4,868 27,385 344,043 Constancia 5 27,613 7,945 7,141 12,527 - 12,527 19,668 110,406 San Dimas 62,528 26,994 13,828 21,706 - 21,706 35,534 194,367 Stillwater 17,303 3,094 6,433 7,776 - 7,776 14,209 229,994 Other 3, 5 29,919 8,736 8,191 12,992 - 12,992 21,561 13,168 Total gold interests $ 541,045 $ 163,997 $ 158,816 $ 218,232 $ - $ 218,232 $ 377,523 $ 3,497,235 Silver Peñasquito $ 74,578 $ 19,267 $ 14,020 $ 41,291 $ - $ 41,291 $ 55,310 $ 374,702 Antamina 5 76,328 15,322 41,267 19,739 - 19,739 61,007 668,810 Constancia 5 38,895 14,258 18,044 6,593 - 6,593 24,637 228,187 Other 4, 5 98,600 40,059 14,960 43,581 - 43,581 55,509 487,693 Total silver interests $ 288,401 $ 88,906 $ 88,291 $ 111,204 $ - $ 111,204 $ 196,463 $ 1,759,392 Palladium Stillwater $ 31,886 $ 5,656 $ 9,719 $ 16,511 $ - $ 16,511 $ 26,230 $ 249,969 Cobalt Voisey’s Bay 5 $ - $ - $ - $ - $ 165,912 $ (165,912 ) $ - $ 227,510 Total mineral stream interests $ 861,332 $ 258,559 $ 256,826 $ 345,947 $ 165,912 $ 180,035 $ 600,216 $ 5,734,106 Other General and administrative $ (54,507 ) $ (46,292 ) Finance costs (48,730 ) (44,733 ) Other 274 (2,191 ) Income tax 9,066 (5,380 ) Total corporate $ (93,897 ) $ (98,596 ) $ 543,901 Consolidated $ 86,138 $ 501,620 $ 6,278,007 1) See Note 11 for more information. 2) Comprised of the operating Coleman, Copper Cliff, Garson, Creighton and Totten gold interests as well as the non-operating 3) Where a gold interest represents less than 10% of the Company’s sales, gross margin or aggregate asset book value and is not evaluated on a regular basis by the Company’s CEO for the purpose of assessing performance, the gold interest has been summarized under Other gold interests. Other gold interests are comprised of the operating 777 and Minto gold interests and the non-operating 4) Where a silver interest represents less than 10% of the Company’s sales, gross margin or aggregate asset book value and is not evaluated on a regular basis by the Company’s CEO for the purpose of assessing performance, the silver interest has been summarized under Other silver interests. Other silver interests are comprised of the operating Los Filos, Zinkgruvan, Yauliyacu, Stratoni, Aljustrel, Neves-Corvo, Minto, and 777 silver interests, the non-operating 5) As it relates to mine operator concentration risk: a. The counterparty obligations under the Salobo, Sudbury and Voisey’s Bay PMPAs are guaranteed by the parent company Vale. Total revenues relative to Vale during the year ended December 31, 2019 were 47% of the Company’s total revenue. b. The counterparty obligations under the Antamina PMPA and the Yauliyacu PMPA (which is included as part of Other silver interests) are guaranteed by the parent company Glencore plc (“Glencore”) and its subsidiary. Total revenues relative to Glencore during the year ended December 31, 2019 were 12% of the Company’s total revenue. c. The counterparty obligations under the Constancia PMPA and the 777 PMPA (which is included as part of Other gold and silver interests) are guaranteed by the parent company Hudbay Minerals Inc. (“Hudbay”). Total revenues relative to Hudbay during the year ended December 31, 2019 were 11% of the Company’s total revenue. Should any of these mine operators become unable or unwilling to fulfill their obligations under their agreements with the Company, there could be a material adverse impact on the Company including, but not limited to, the Company’s revenue, net income and cash flows from operations. Geographical Areas The Company’s geographical information, which is based on the location of the mining operations to which the mineral stream interests relate, are summarized in the tables below: Carrying Amount at December 31, 2020 (in thousands) Sales: Gold Silver Palladium Cobalt Total North America Canada $ 94,239 9 % $ 328,543 $ 28,412 $ - $ 227,510 $ 584,465 10 % United States 66,125 6 % 224,310 566 241,389 - 466,265 8 % Mexico 220,768 20 % 182,201 351,974 - - 534,175 10 % Europe Greece 11,488 1 % - - - - - 0 % Portugal 33,460 3 % - 20,261 - - 20,261 0 % Sweden 34,486 3 % - 32,956 - - 32,956 1 % South America Argentina/Chile 1 - 0 % - 264,402 - - 264,402 5 % Brazil 450,166 41 % 2,509,344 - - - 2,509,344 46 % Peru 185,492 17 % 105,569 970,614 - - 1,076,183 20 % Colombia - 0 % - 340 - - 340 0 % Consolidated $ 1,096,224 100 % $ 3,349,967 $ 1,669,525 $ 241,389 $ 227,510 $ 5,488,391 100 % 1) Includes the Pascua-Lama project, which straddles the border of Argentina and Chile. Carrying Amount at December 31, 2019 (in thousands) Sales: Gold Silver Palladium Cobalt Total North America Canada $ 74,307 9 % $ 357,212 $ 32,124 $ - $ 227,510 $ 616,846 11 % United States 49,189 6 % 229,994 566 249,969 - 480,529 8 % Mexico 139,275 16 % 194,365 376,020 - - 570,385 10 % Europe Greece 9,339 1 % - 1,990 - - 1,990 0 % Portugal 28,012 3 % - 21,355 - - 21,355 0 % Sweden 25,250 3 % - 35,059 - - 35,059 1 % South America Argentina/Chile 1 - 0 % - 264,403 - - 264,403 5 % Brazil 365,448 42 % 2,605,258 - - - 2,605,258 45 % Peru 170,512 20 % 110,406 1,027,875 - - 1,138,281 20 % Consolidated $ 861,332 100 % $ 3,497,235 $ 1,759,392 $ 249,969 $ 227,510 $ 5,734,106 100 % 1) Includes the Pascua-Lama project, which straddles the border of Argentina and Chile.

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Subsequent Events	30. Subsequent Events Declaration of Dividend Under the Company’s dividend policy, the quarterly dividend per common share is targeted to equal approximately 30% of the average cash flow generated by operating activities in the previous four quarters divided by the Company’s then outstanding common shares, all rounded to the nearest cent. To minimize volatility in quarterly dividends, the Company has set a minimum quarterly dividend of $0.13 per common share for the duration of 2021. The declaration, timing, amount and payment of future dividends remain at the discretion of the Board of Directors. On March 11, 2021, the Board of Directors declared a dividend in the amount of $0.13 per common share, with this dividend being payable to shareholders of record on March 26, 2021 and is expected to be distributed on or about April 13, 2021. The Company has implemented a dividend reinvestment plan (“DRIP”) whereby shareholders can elect to have dividends reinvested directly into additional Wheaton common shares at a discount of 1% of the Average Market Price, as defined in the DRIP.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
New Accounting Standards Effective in 2020	3.1. New Accounting Standards Effective in 2020 Amendment to IFRS 3 - Business Combinations The amendments to IFRS 3 clarify the definition of a business and includes an optional concentration test to determine whether an acquired set of activities and assets is a business. The amendments are effective for business combinations and asset acquisitions occurring on or after January 1, 2020. The Company will apply these amendments to future acquisition transactions. Interest Rate Benchmark Reform (Amendments to IFRS 9, IAS 39 and IFRS 7) The amendments in Interest Rate Benchmark Reform (Amendments to IFRS 9, IAS 39 and IFRS 7) clarify that entities would continue to apply certain hedge accounting requirements assuming that the interest rates benchmark on which the hedged cash flows and cash flows from the hedging instrument are based will not be altered as a result of interest rate benchmark reform. This amendment did not have a significant impact to the Company’s consolidated financial statements as the Company does not have hedge accounting. Amendments to IFRS 16 Leases To provide practical relief to lessees in accounting for rent concessions arising as a result of COVID-19 COVID-19 COVID-19
Principles of Consolidation	3.2. Principles of Consolidation The consolidated financial statements include the accounts of the Company and its 100% owned subsidiaries Wheaton Precious Metals International Ltd., Silver Wheaton Luxembourg S.a.r.l. and Wheaton Precious Metals (Cayman) Co. Subsidiaries are fully consolidated from the date on which the Company obtains a controlling interest. Control is defined as an investor’s power over an investee with exposure, or rights, to variable returns from the investee and the ability to affect the investor’s returns through its power over the investee. Subsidiaries are included in the consolidated financial results of the Company from the effective date of acquisition up to the effective date of disposition or loss of control. The financial statements of the subsidiaries are prepared for the same reporting period as the parent company, using consistent accounting policies. Balances, transactions, income and expenses between the Company and its subsidiaries are eliminated on consolidation.
Cash and Cash Equivalents	3.3. Cash and Cash Equivalents Cash and cash equivalents include cash and highly liquid money market investments including short-term deposits, treasury bills, commercial paper, bankers’ depository notes and bankers’ acceptances with terms to maturity of less than three months.
Revenue Recognition	3.4. Revenue Recognition Revenue relating to the sale of precious metals is recognized when control of the precious metal is transferred to the customer in an amount that reflects the consideration the Company expects to receive in exchange for those products. In determining whether the Company has satisfied a performance obligation, it considers the indicators of the transfer of control, which include, but are not limited to, whether: the Company has a present right to payment; the customer has legal title to the asset; the Company has transferred physical possession of the asset to the customer; and the customer has the significant risks and rewards of ownership of the asset. Under certain PMPAs, precious metal is acquired from the mine operator in the form of gold, silver or palladium credits, which is then sold through a network of third party brokers or dealers. Revenue from precious metal credit sales is recognized at the time of the sale of such credits, which is also the date that control of the precious metal is transferred to the customer. The Company will occasionally enter into forward contracts in relation to precious metal deliveries that it is highly confident will occur within a given quarter. No forward contracts were outstanding at December 31, 2020 or December 31, 2019. The sales price is fixed at the delivery date based on either the terms of these short-term forward sales contracts or the spot price of the precious metal. Under certain PMPAs, precious metal is acquired from the mine operator in concentrate form, which is then sold under the terms of the concentrate sales contracts to third-party smelters or traders. Where the Company acquires precious metals in concentrate form, final precious metal prices are set on a specified future quotational period (the “Quotational Period”) pursuant to the concentrate sales contracts with third-party smelters, typically one to three months after the shipment date, based on market prices for precious metals. The contracts, in general, provide for a provisional payment based upon provisional assays and quoted precious metal prices. Final settlement is based upon the average applicable price for the Quotational Period applied to the actual number of precious metal ounces recovered calculated using confirmed smelter weights and settlement assays. Revenues and the associated cost of sales are recorded on a gross basis under these contracts at the time title passes to the buyer, which is also the date that control of the precious metal is transferred to the customer. The Company has concluded that the adjustments relating to the final assay results for the quantity of concentrate sold and the retroactive pricing adjustment for the Quotational Period are not significant and do not constrain the recognition of revenue.
Financial Instruments	3.5. Financial Instruments Financial assets and financial liabilities are recognized when the Company becomes a party to the contractual provisions of the instrument. Financial assets and financial liabilities are initially measured at fair value. Transaction costs that are directly attributable to the acquisition or issue of financial assets and financial liabilities (other than financial assets and financial liabilities at fair value through net earnings) are added to or deducted from the fair value of the financial assets or financial liabilities, as appropriate, on initial recognition. Transaction costs directly attributable to the acquisition of financial assets or financial liabilities at fair value through net earnings are recognized immediately in net earnings.
Financial Assets	3.6. Financial Assets Financial assets are subsequently measured at either amortized cost or fair value, depending on the classification of the financial assets. Financial Assets at Fair Value Through Other Comprehensive Income (“FVTOCI”) The Company’s long-term investments in common shares held are for long-term strategic purposes and not for trading. Upon the adoption of IFRS 9, Financial Instruments (“IFRS 9”), the Company made an irrevocable election to designate these long-term investments in common shares held as FVTOCI as it believes that this provides a more meaningful presentation for long-term strategic investments, rather than reflecting changes in fair value in net earnings. Long-term investments in common shares held are initially measured at fair value. Subsequently, they are measured at fair value with gains and losses arising from changes in fair value recognized as a component of other comprehensive income (“OCI”) and accumulated in the long-term investment revaluation reserve. The cumulative gain or loss will not be reclassified to net earnings on disposal of these long-term investments but is reclassified to retained earnings. Dividends on these long-term investments in common shares held are recognized as a component of net earnings in the period they are received under the classification Other (Income) Expense. Financial Assets at Fair Value Through Net Earnings (“FVTNE”) Cash and cash equivalents are stated at FVTNE. Warrants held by the Company for long-term investment purposes are classified as FVTNE. These warrants are measured at fair value at the end of each reporting period, with any gains or losses arising on remeasurement recognized as a component of net earnings under the classification Other (Income) Expense. Convertible notes receivable (Note 14) are classified as FVTNE and are measured at fair value at the end of each reporting period by discounting the stream of future interest and principal payments at the rate of interest prevailing at the balance sheet date for instruments of similar term and risk (the market interest rate), and adding this value to the value of the convertibility feature which is estimated using a Black-Scholes model based on assumptions including risk free interest rate, expected dividend yield, expected volatility and expected remaining life of the respective convertible notes receivable. The resulting gains or losses (if any) arising on remeasurement is recognized as a component of net earnings under the classification Other (Income) Expense. As discussed in Note 3.4, the Company’s provisionally priced sales contain an embedded derivative that is reflected at fair value at the end of each reporting period. Fair value gains and losses related to the embedded derivative are included in revenue in the period they occur. Financial Assets at Amortized Cost The non-revolving non-interest non-revolving Foreign Exchange Gains and Losses The fair value of financial assets denominated in a foreign currency is determined in that foreign currency and translated at the spot rate at the end of each reporting period. The foreign exchange component forms part of its fair value gain or loss. Therefore, · For financial assets that are classified as FVTNE, the foreign exchange component is recognized as a component of net earnings; · For financial assets that are classified as FVTOCI, the foreign exchange component is recognized as a component of OCI; and · For financial assets that are denominated in a foreign currency and are measured at amortized cost at the end of each reporting period, the foreign exchange gains and losses are determined based on the amortized cost of the instruments and are recognized as a component of net earnings. Derecognition of Financial Assets The Company derecognizes a financial asset only when the contractual rights to cash flows from the asset expire, or when it transfers the financial asset and substantially all the risks and rewards of ownership of the asset to another entity. If the Company neither transfers nor retains substantially all the risks and rewards of ownership and continues to control the transferred asset, the Company recognizes its retained interest in the asset and an associated liability for amounts it may have to pay. If the Company retains substantially all the risks and rewards of ownership of a transferred financial asset, the Company continues to recognize the financial asset and also recognizes a collateralized borrowing for the proceeds received. On derecognition of a financial asset that is classified as FVTOCI, the cumulative gain or loss (net of tax) previously accumulated in the long-term investment revaluation reserve is not reclassified to net earnings, but is reclassified to retained earnings.
Financial Liabilities and Equity Instruments	3.7. Financial Liabilities and Equity Instruments Debt and equity instruments issued by the Company are classified as either financial liabilities or as equity in accordance with the substance of the contractual arrangements and the definition of a financial liability and equity instrument. All financial liabilities are subsequently measured at amortized cost using the effective interest method or at FVTNE, depending on the classification of the instrument. Equity Instruments An equity instrument is a contract that evidences a residual interest in the assets of an entity after deducting all of its liabilities. Equity instruments issued by the Company are recognized at the proceeds received less direct issue costs (net of any current or deferred income tax recovery attributable to such costs). Share Purchase Warrants Issued Share purchase warrants issued with an exercise price denominated in the Company’s functional currency (US dollars) are considered equity instruments with the consideration received reflected within shareholders’ equity under the classification of share purchase warrants reserve. Upon exercise, the original consideration is reallocated from share purchase warrants reserve to issued share capital along with the associated exercise price. Bank Debt Bank debt is initially measured at fair value, net of transaction costs, and is subsequently measured at amortized cost using the effective interest method. The effective interest method is a method of calculating the amortized cost of a financial liability and of allocating interest expense over the relevant period. The effective interest rate is the rate that exactly discounts estimated future cash payments through the expected life of the financial liability, or (where appropriate) a shorter period, to the net carrying amount on initial recognition. Other Financial Liabilities Accounts payable and accrued liabilities are stated at amortized cost, which approximate fair values due to the short terms to maturity. Foreign Exchange Gains and Losses The fair value of financial liabilities denominated in a foreign currency is determined in that foreign currency and translated at the spot rate at the end of each reporting period. Therefore, · For financial liabilities that are denominated in a foreign currency and are measured at amortized cost at the end of each reporting period, the foreign exchange gains and losses are determined based on the amortized cost of the instruments and are recognized as a component of net earnings; and · For financial liabilities that are classified as FVTNE, the foreign exchange component forms part of the fair value gains or losses and is recognized as a component of net earnings. Derecognition of Financial Liabilities The Company derecognizes financial liabilities when the Company’s obligations are discharged, cancelled or they expire. The difference between the carrying amount of the financial liability derecognized and the consideration paid and payable, including any non-cash
Mineral Stream Interests	3.8. Mineral Stream Interests Agreements for which settlement is called for in gold, silver, palladium or cobalt, the amount of which is based on production at the mines, are stated at cost less accumulated depletion and accumulated impairment charges, if any. The cost of the asset is comprised of its purchase price, any closing costs directly attributable to acquiring the asset, and, for qualifying assets, borrowing costs. The purchase price is the aggregate cash amount paid and the fair value of any other non-cash Depletion The cost of these mineral stream interests is separately allocated to reserves, resources and exploration potential. The value allocated to reserves is classified as depletable and is depleted on a unit-of-production non-depletable Asset Impairment Management considers each PMPA to be a separate cash generating unit (“CGU”), which is the lowest level for which cash inflows are largely independent of those of other assets. At the end of each reporting period, the Company assesses each PMPA to determine whether any indication of impairment exists. If such an indication exists, the recoverable amount of the PMPA is estimated in order to determine the extent of the impairment (if any). The recoverable amount of each PMPA is the higher of fair value less cost of disposal (“FVLCD”) and value in use (“VIU”). In determining the recoverable amounts of each of the Company’s CGU’s, the Company uses the FVLCD as this will generally be greater than or equal to the VIU. To determine the FVLCD that could be received from each PMPA in an arm’s length transaction at the measurement date, the Company estimates a range of potential values using the net asset value (“NAV”) methodology and the net present value (“NPV”) methodology (as described below), and then selects a value within this range which is the most representative of the estimated recoverable amount of the stream. NAV is estimated by using an appropriate discount rate to calculate the present value of the expected future cash flows associated with each mineral category. The values are adjusted for each mineral category dependent on the likelihood of conversion from resources to reserves. A market multiple is applied to the NAV computed in order to assess the estimated fair value. Precious metal companies typically trade at a market capitalization that is based on a multiple of their underlying NAV, with this market multiple being generally understood to take account of a variety of additional value and risk factors such as the ability to find and produce more metal than what is currently included in the life of mine plan, the benefit of precious metal price optionality, the potential remaining mine life and adjustments for relative mine and country risk. Consequently, a market participant would generally apply a NAV multiple when estimating the fair value of a precious metal interest. NPV is estimated by using a nominal discount rate to calculate the present value of expected future cash flows. The expected future cash flows are management’s best estimates of expected future revenues and costs. Under each valuation methodology, expected future revenues reflect an estimate of future payable production for each mine at which the Company has a PMPA derived from detailed life of mine plans received from each of the partners. Expected future revenues also reflect management’s estimated long-term metal prices. Estimated future cash costs are generally fixed based on the terms of each PMPA as disclosed in Note 28. If the carrying amount of the PMPA exceeds its recoverable amount, the PMPA is considered impaired and an impairment charge is reflected as a component of net earnings so as to reduce the carrying amount to its recoverable value. A previously recognized impairment charge is reversed only if there has been an indicator of a potential impairment reversal and the resulting assessment of the PMPA’s recoverable amount exceeds its carrying value. If this is the case, the carrying amount of the PMPA is increased to its recoverable amount. The increased amount cannot exceed the carrying amount that would have been determined, net of depletion, had no impairment charge been recognized for the PMPA in prior years. Such reversal is reflected as a component of net earnings.
Borrowing and Debt Issue Costs	3.9. Borrowing and Debt Issue Costs Borrowing costs allocable to qualifying assets, which are assets that necessarily take a substantial period of preparation for their intended use, are capitalized and included in the carrying amounts of the related assets until such time as the assets are substantially ready for their intended use. Borrowing costs that do not relate to the acquisition or construction of qualifying assets are reflected as a component of net earnings under the classification Finance Costs, as incurred. Debt issue costs on non-revolving
Stock Based Payment Transactions	3.10. Stock Based Payment Transactions The Company recognizes a stock based compensation expense for all share purchase options and restricted share units (“RSUs”) awarded to employees, officers and directors based on the fair values of the share purchase options and RSUs at the date of grant. The fair values of share purchase options and RSUs at the date of grant are expensed over the vesting periods of the share purchase options and RSUs, respectively, with a corresponding increase to equity. The fair value of share purchase options is determined using the Black-Scholes option pricing model with market related inputs as of the date of grant. Share purchase options with graded vesting schedules are accounted for as separate grants with different vesting periods and fair values. The fair value of RSUs is the market value of the underlying shares at the date of grant. At the end of each reporting period, the Company re-assesses The Company recognizes a stock based compensation expense for performance share units (“PSUs”) which are awarded to eligible employees and are settled in cash. Compensation expense for the PSUs is recorded on a straight-line basis over the three year vesting period. This estimated expense is reflected as a component of net earnings over the vesting period of the PSUs with the related obligation recorded as a liability on the balance sheet. The amount of compensation expense is adjusted at the end of each reporting period to reflect (i) the fair market value of common shares; (ii) the number of PSUs anticipated to vest; and (iii) the anticipated performance factor.
Income Taxes	3.11. Income Taxes Income tax expense comprises current and deferred income tax. Current and deferred income taxes are recognized as a component of net earnings except to the extent that it relates to items recognized directly in equity or as a component of OCI. Current income tax is the expected tax payable on the taxable income for the year, using tax rates enacted or substantively enacted at the end of the reporting period, and any adjustment to tax payable in respect of previous years. Deferred income tax is recognized using the liability method on temporary differences arising between the tax bases of assets and liabilities and their carrying amounts in the consolidated financial statements. Deferred income tax assets and liabilities are measured using tax rates and laws that have been enacted or substantively enacted at the end of the reporting period and which are expected to apply when the related deferred income tax assets are realized or the deferred income tax liabilities are settled. Deferred income tax liabilities are generally recognized for all taxable temporary differences. Deferred income tax assets are generally recognized for all deductible temporary differences and the carry forward of unused tax losses and tax credits to the extent that it is probable that sufficient future taxable income, including income arising from reversing taxable temporary differences and tax planning opportunities, will be available against which those deductible temporary differences and the carry forward of unused tax losses and tax credits can be utilized. Deferred income tax liabilities are recognized for taxable temporary differences arising on investments in subsidiaries except where the reversal of the temporary difference can be controlled and it is probable that the difference will not reverse in the foreseeable future. Deferred income tax assets arising from deductible temporary differences associated with such investments are only recognized to the extent that it is probable that there will be sufficient taxable income against which to utilize the benefits of the temporary differences and they are expected to reverse in the foreseeable future. The carrying amount of deferred income tax assets are reviewed at the end of each reporting period and reduced to the extent that it is no longer probable that sufficient taxable income, including income arising from reversing taxable temporary differences and tax planning opportunities, will be available to allow all or part of the deferred income tax assets to be recovered. Deferred income tax assets and liabilities are not recognized for temporary differences arising from the initial recognition (other than in a business combination) of assets and liabilities in a transaction which does not affect either the accounting income or the taxable income. In addition, deferred income tax liabilities are not recognized if the temporary difference arises from the initial recognition of goodwill.
Earnings Per Share	3.12. Earnings Per Share Earnings per share calculations are based on the weighted average number of common shares and common share equivalents issued and outstanding during the year. Diluted earnings per share is calculated using the treasury method which requires the calculation of diluted earnings per share by assuming that outstanding share purchase options and warrants with an exercise price that exceeds the average market price of the common shares for the period are exercised, and the proceeds are used to repurchase shares of the Company at the average market price of the common shares for the period.
Foreign Currency Translation	3.13. Foreign Currency Translation The functional currency is the currency of the primary economic environment in which an entity operates. The consolidated financial statements are presented in US dollars, which is the functional currency of the Company and its subsidiaries. Foreign currency monetary assets and liabilities are translated into US dollars at the exchange rates prevailing at the balance sheet date. Non-monetary
Leasing	3.14. Leasing The Company as the Lessee At inception of a contract, the Company assesses whether the contract is, or contains, a lease. A contract is, or contains, a lease if the contract conveys the right to use an identified asset for a period of time in exchange for consideration. The Company recognizes a right-of-use The lease liability is initially measured at the present value of the lease payments that are not paid at the commencement date discounted by using the rate implicit in the lease. If this rate cannot be readily determined, the Company uses its incremental borrowing rate. The lease liability is subsequently measured by increasing the carrying amount to reflect interest on the lease liability (using the effective interest method) and by reducing the carrying amount to reflect the lease payments made. The Company re-measures right-of-use re-measured The right-of-use
Property, plant and equipment	3.15. Property, plant and equipment Property, plant and equipment are measured at cost less accumulated depreciation. The cost includes the original purchase price of the asset and the costs attributable to bringing the asset to its working condition for its intended use. Depreciation is based on cost and is calculated on a straight-line basis over the estimated economic life of the asset. The right of use asset discussed in Note 3.14 and the leasehold improvements are depreciated over the life of the lease term. Other assets, which include computer software, computer equipment, office furniture and office equipment, are depreciated over their estimated economic life, which ranges from 3 to 10 years.
Provisions	3.16. Provisions Provisions are recognized when the Company has a present obligation (legal or constructive) as a result of a past event, it is probable that the Company will be required to settle the obligation, and a reliable estimate can be made of the amount required to settle the obligation. The amount recognized as a provision is the best estimate of the consideration required to settle the present obligation at the end of the reporting period, taking into account the risks and uncertainties surrounding the obligation. Where a provision is measured using the cash flows estimated to settle the present obligation, its carrying amount is the present value of those cash flows. When some or all of the economic benefits required to settle a provision are expected to be recovered from a third party, a receivable is recognized as an asset if it is virtually certain that reimbursement will be received and the amount of the receivable can be measured reliably.
Post-Employment Benefit Costs	3.17. Post-Employment Benefit Costs The Company provides a Supplemental Employee Retirement Plan (“SERP) to all qualified employees. The SERP is an unregistered and unfunded defined contribution plan under which the Company makes a fixed notional contribution to an account maintained by the Company. Any benefits under the SERP have a vesting period of five years from the first date of employment. The notional contributions are recognized as employee benefit expense in earnings in the periods during which services are rendered by employees.
Future Changes in Accounting Policies	3.18. Future Changes to Accounting Policies The IASB has issued the following new or amended standards: Standards required to be applied for periods beginning on or after January 1, 2021: Amendment to IAS 16 - Property, Plant and Equipment The amendments to IAS 16 prohibit deducting from the cost of property, plant and equipment the proceeds from selling items produced while bringing the assets to the location and condition necessary for them to be capable of operating in the manner intended by management. Instead, a company will recognize such sales proceeds and related cost in the Statement of Earnings. This amendment is in effect January 1, 2022 with early adoption permitted. The adoption of this guidance is not expected to have a material impact on the Company’s Consolidated Statement of Earnings.

Financial Instruments (Tables)

Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Classification of Financial Assets and Liabilities	The following table summarizes the classification of the Company’s financial assets and liabilities: Note December 31 December 31 (in thousands) 2020 2019 Financial assets Financial assets mandatorily measured at FVTNE 1 Cash and cash equivalents $ 192,683 $ 103,986 Trade receivables from provisional concentrate sales, net of fair value adjustment 6, 9 5,429 4,350 Long-term investments - warrants held 15 3,637 - Convertible notes receivable 14 11,353 21,856 Investments in equity instruments designated as at FVTOCI 1 Long-term investments - common shares held 15 196,241 309,757 Financial assets measured at amortized cost Non-revolving 24 813 431 Other accounts receivable 9 454 2,788 Class action settlement recoverable 24, 28 - 41,500 Total financial assets $ 410,610 $ 484,668 Financial liabilities Financial liabilities at amortized cost Accounts payable and accrued liabilities 13,023 11,794 Bank debt 17 195,000 874,500 Pension liability 27 1,670 810 Class action settlement 28 - 41,500 Total financial liabilities $ 209,693 $ 928,604 1) FVTNE refers to Fair Value Through Net Earnings, FVTOCI refers to Fair Value Through Other Comprehensive Income
Maximum Exposure to Credit Risk Related to Financial Assets	The Company’s maximum exposure to credit risk related to its financial assets is as follows: December 31 December 31 (in thousands) Note 2020 2019 Cash and cash equivalents $ 192,683 $ 103,986 Trade receivables from provisional concentrate sales, net of fair value adjustment 9 5,429 4,350 Other accounts receivables 9 454 2,788 Non-revolving 24 813 431 Convertible notes receivable 14 11,353 21,856 Class action settlement recoverable 24, 28 - 41,500 Maximum exposure to credit risk related to financial assets $ 210,732 $ 174,911
Timing Associated with Remaining Contractual Payments Relating to Financial Liabilities	The table includes both interest and principal cash flows. To the extent that applicable interest rates are floating in nature, the interest charges are estimated based on market-based forward interest rate curves at the end of the reporting period. As at December 31, 2020 (in thousands) 2021 2022 - 2024 2025 - 2026 After 2026 Total Non-derivative Bank debt ¹ $ - $ - $ 195,000 $ - $ 195,000 Interest on bank debt ² 2,311 8,722 622 - 11,655 Accounts payable and accrued liabilities 13,023 - - - 13,023 Performance share units 3 17,297 11,784 - - 29,081 Pension liability 4 1,670 - - - 1,670 Lease liability 1,053 3,204 400 - 4,657 Total $ 35,354 $ 23,710 $ 196,022 $ - $ 255,086 1) Assumes the principal balance outstanding at December 31, 2020 does not change until the debt maturity date. 2) As the applicable interest rates are floating in nature, the interest charges are estimated based on market-based forward interest rate curves at the end of the reporting period combined with the assumption that the principal balance outstanding at December 31, 2020 does not change until the debt maturity date. 3) Assumes a weighted average performance factor of 187% (see Note 20.1). 4) Any benefits under the SERP will be paid out to the employee over a 10-year
Summary of Carrying Amounts of Canadian Dollar Denominated Monetary Assets and Monetary Liabilities	The carrying amounts of the Company’s Canadian dollar denominated monetary assets and monetary liabilities at the end of the reporting​​​​​​​ period are as follows: December 31 December 31 (in thousands) 2020 2019 Monetary assets Cash and cash equivalents $ 5,041 $ 4,148 Accounts receivable 71 2,519 Long-term investments - common shares held 195,816 309,757 Long-term investments - warrants held 3,637 - Convertible note receivable 11,353 11,837 Non-revolving 813 431 Other long-term assets 3,519 3,450 Total Canadian dollar denominated monetary assets $ 220,250 $ 332,142 Monetary liabilities Accounts payable and accrued liabilities $ 8,011 $ 6,059 Performance share units 23,405 15,423 Lease liability 2,403 2,748 Pension liability 1,670 810 Total Canadian dollar denominated monetary liabilities $ 35,489 $ 25,040
Summary of Sensitivity to 10% Increase or Decrease in Canadian Dollar	The following tables detail the Company’s sensitivity to a 10% increase or decrease in the Canadian dollar relative to the United States dollar, representing the sensitivity used when reporting foreign currency risk internally to key management personnel and represents management’s assessment of the reasonably possible change in exchange rates. As at December 31, 2020 Change in Canadian Dollar (in thousands) 10% 10% Increase (decrease) in net earnings $ (1,105 ) $ 1,105 Increase (decrease) in other comprehensive income 19,582 (19,582 ) Increase (decrease) in total comprehensive income $ 18,477 $ (18,477 ) As at December 31, 2019 Change in Canadian Dollar (in thousands) 10% 10% Increase (decrease) in net earnings $ (265 ) $ 265 Increase (decrease) in other comprehensive income 30,976 (30,976) Increase (decrease) in total comprehensive income $ 30,711 $ (30,711)
Summary of Financial Assets and Liabilities Measured at Fair Value by Level within Fair Value Hierarchy	The following table sets forth the Company’s financial assets and liabilities measured at fair value by level within the fair value hierarchy. As required by IFRS 13, assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. December 31, 2020 (in thousands) Note Total Level 1 Level 2 Level 3 Cash and cash equivalents $ 192,683 $ 192,683 $ - $ - Trade receivables from provisional concentrate sales, net of fair value adjustment 9 5,429 - 5,429 - Long-term investments - common shares held 15 196,241 196,241 - - Long-term investments - warrants held 15 3,637 - 3,637 - Kutcho Convertible Note 14 11,353 - - 11,353 $ 409,343 $ 388,924 $ 9,066 $ 11,353 December 31, 2019 (in thousands) Note Total Level 1 Level 2 Level 3 Cash and cash equivalents $ 103,986 $ 103,986 $ - $ - Trade receivables from provisional concentrate sales, net of fair value adjustment 9 4,350 - 4,350 - Long-term investments - common shares held 15 309,757 309,757 - - Long-term investments - warrants held 15 - - - - Convertible notes receivable 14 21,856 - - 21,856 $ 439,949 $ 413,743 $ 4,350 $ 21,856
Summary of Sensitivity Analysis of Fair Value Measurement to Changes in Unobservable Inputs, Assets	Holding all other variables constant, a fluctuation in interest rates of 1% and a fluctuation in the implied volatility used of 5% would have impacted the valuation as below: As at December 31, 2020 Change in interest rate Change in volatility (in thousands) Increase Decrease Increase Decrease Kutcho Convertible Note $ (371 ) $ 386 $ 243 $ (199)

Revenue (Tables)

Revenue (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Summary of Revenue	Years Ended December 31 (in thousands) 2020 2019 Sales Gold Gold credit sales $ 652,827 60 % $ 535,766 62% Concentrate sales - 0 % 5,279 1% $ 652,827 60 % $ 541,045 63% Silver Silver credit sales $ 320,192 29 % $ 225,316 26% Concentrate sales 79,433 7 % 63,085 7% $ 399,625 36 % $ 288,401 33% Palladium Palladium credit sales $ 43,772 4 % $ 31,886 4% Total sales revenue $ 1,096,224 100 % $ 861,332 100%

General and Administrative (Tab

General and Administrative (Tables)	12 Months Ended
	Dec. 31, 2020
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Summary of General and Administrative Expense	Years Ended December 31 (in thousands) Note 2020 2019 Salaries and benefits Salaries and benefits, excluding PSUs $ 16,733 $ 13,840 PSUs 1 20.1 21,520 17,174 Total salaries and benefits $ 38,253 $ 31,014 Depreciation 1,889 1,903 Donations 5,792 2,946 Professional fees 3,590 2,496 Other 10,742 10,457 General and administrative before equity settled stock based compensation $ 60,266 $ 48,816 Equity settled stock based compensation 2 Stock options 19.2 $ 2,165 $ 2,474 RSUs 19.3 3,267 3,217 Total equity settled stock based compensation $ 5,432 $ 5,691 Total general and administrative $ 65,698 $ 54,507 1) The PSU accrual related to the anticipated fair value of the PSUs issued uses a weighted average performance factor of 187% during the year ended December 31, 2020 as compared to 186% during the comparable period of 2019. 2) Equity settled stock based compensation is a non-cash

Other (Income) Expense (Tables)

Other (Income) Expense (Tables)	12 Months Ended
	Dec. 31, 2020
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Summary of Other (Income) Expense	Years Ended December 31 (in thousands) Note 2020 2019 Interest income $ (229 ) $ (816 ) Dividends received from equity investments designated as FVTOCI ¹ relating to investments held at the end of the reporting period 15 - (59 ) Foreign exchange loss 152 1,028 Gain on disposal of mineral royalty interest 13 - (2,929 ) Net (gain) loss arising on financial assets mandatorily measured at FVTPL ² (Gain) loss on fair value adjustment of share purchase warrants held 15 (338 ) 16 (Gain) loss on fair value adjustment of convertible notes receivable 14 (1,899 ) 1,043 Other 144 1,443 Total other (income) expense $ (2,170 ) $ (274 ) 1) FVTOCI refers to Fair Value Through Other Comprehensive Income. 2) FVTPL refers to Fair Value Through Profit or Loss.

Accounts Receivable (Tables)

Accounts Receivable (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Summary of Accounts Receivable	December 31 December 31 (in thousands) Note 2020 2019 Trade receivables from provisional concentrate sales, net of fair value adjustment 6 $ 5,429 $ 4,350 Other accounts receivable 454 2,788 Total accounts receivable $ 5,883 $ 7,138

Mineral Stream Interests (Table

Mineral Stream Interests (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Schedule of Mineral Stream Interests	Year Ended December 31, 2020 Cost Accumulated Depletion & Impairment 1 Carrying (in thousands) Balance Additions Balance Balance Depletion Balance Gold interests Salobo $ 3,059,876 $ - $ 3,059,876 $ (454,619 ) $ (95,913 ) $ (550,532 ) $ 2,509,344 Sudbury 2 623,864 - 623,864 (279,821 ) (23,027 ) (302,848 ) 321,016 Constancia 136,058 - 136,058 (25,652 ) (4,837 ) (30,489 ) 105,569 San Dimas 220,429 - 220,429 (26,062 ) (12,165 ) (38,227 ) 182,202 Stillwater 3 239,352 - 239,352 (9,358 ) (5,684 ) (15,042 ) 224,310 Other 4 402,232 - 402,232 (389,064 ) (5,642 ) (394,706 ) 7,526 $ 4,681,811 $ - $ 4,681,811 $ (1,184,576 ) $ (147,268 ) $ (1,331,844 ) $ 3,349,967 Silver interests Peñasquito $ 524,626 - 524,626 $ (149,924 ) $ (24,130 ) $ (174,054 ) $ 350,572 Antamina 900,343 - 900,343 (231,533 ) (41,876 ) (273,409 ) 626,934 Constancia 302,948 - 302,948 (74,761 ) (11,143 ) (85,904 ) 217,044 Other 5 1,283,054 (1,826 ) 1,281,228 (795,361 ) (10,892 ) (806,253 ) 474,975 $ 3,010,971 $ (1,826 ) $ 3,009,145 $ (1,251,579 ) $ (88,041 ) $ (1,339,620 ) $ 1,669,525 Palladium interests Stillwater 3 $ 263,721 $ - $ 263,721 $ (13,752 ) $ (8,580 ) $ (22,332 ) $ 241,389 Cobalt interests Voisey’s Bay $ 393,422 $ - $ 393,422 $ (165,912 ) $ - $ (165,912 ) $ 227,510 $ 8,349,925 $ (1,826) $ 8,348,099 $ (2,615,819) $ (243,889) $ (2,859,708) $ 5,488,391 1) Includes cumulative impairment charges to December 31, 2020 as follows: Keno Hill silver interest - $11 million; Pascua-Lama silver interest - $338 million; 777 silver interest - $64 million; 777 gold interest - $151 million; Sudbury gold interest - $120 million; and Voisey’s Bay cobalt interest - $166 million. 2) Comprised of the Coleman, Copper Cliff, Garson, Stobie, Creighton, Totten and Victor gold interests. 3) Comprised of the Stillwater and East Boulder gold and palladium interests. 4) Comprised of the Minto, Rosemont, 777 and Marmato gold interests. 5) Comprised of the Los Filos, Zinkgruvan, Yauliyacu, Stratoni, Keno Hill, Neves-Corvo, Minto, Aljustrel, Loma de La Plata, Pascua-Lama, Rosemont, 777, Marmato and Cozamin silver interests. During the third quarter of 2020, Wheaton agreed to modify the Keno Hill PMPA as it relates to the delivery payment per ounce of silver in exchange for 2 million common share purchase warrants from Alexco (Note 15). The fair value of these warrants have been reflected as a reduction to the cost base of the Keno Hill silver interest. Year Ended December 31, 2019 Cost Accumulated Depletion & Impairment 1 Carrying (in thousands) Balance Additions Balance Balance Depletion Impairment Balance Gold interests Salobo $ 3,059,876 $ - $ 3,059,876 $ (353,816 ) $ (100,803 ) $ - $ (454,619 ) $ 2,605,257 Sudbury 2 623,864 - 623,864 (257,401 ) (22,420 ) - (279,821 ) 344,043 Constancia 136,058 - 136,058 (18,511 ) (7,141 ) - (25,652 ) 110,406 San Dimas 220,429 - 220,429 (12,234 ) (13,828 ) - (26,062 ) 194,367 Stillwater 3 239,357 (5 ) 239,352 (2,925 ) (6,433 ) - (9,358 ) 229,994 Other 4 402,232 - 402,232 (380,873 ) (8,191 ) - (389,064 ) 13,168 $ 4,681,816 $ (5 ) $ 4,681,811 $ (1,025,760 ) $ (158,816 ) $ - $ (1,184,576 ) $ 3,497,235 Silver interests Peñasquito $ 524,626 $ - $ 524,626 $ (135,904 ) $ (14,020 ) $ - $ (149,924 ) $ 374,702 Antamina 900,343 - 900,343 (190,266 ) (41,267 ) - (231,533 ) 668,810 Constancia 302,948 - 302,948 (56,717 ) (18,044 ) - (74,761 ) 228,187 Other 5 1,283,039 15 1,283,054 (780,401 ) (14,960 ) - (795,361 ) 487,693 $ 3,010,956 $ 15 $ 3,010,971 $ (1,163,288 ) $ (88,291 ) $ - $ (1,251,579 ) $ 1,759,392 Palladium interests Stillwater 3 $ 263,726 $ (5 ) $ 263,721 $ (4,033 ) $ (9,719 ) $ - $ (13,752 ) $ 249,969 Cobalt interests Voisey’s Bay $ 393,422 $ - $ 393,422 $ - $ - $ (165,912 ) $ (165,912 ) $ 227,510 $ 8,349,920 $ 5 $ 8,349,925 $ (2,193,081) $ (256,826) $ (165,912) $ (2,615,819) $ 5,734,106 1) Includes cumulative impairment charges to December 31, 2019 as follows: Keno Hill silver interest - $11 million; Pascua-Lama silver interest - $338 million; 777 silver interest - $64 million; 777 gold interest - $151 million; Sudbury gold interest - $120 million; and Voisey’s Bay cobalt interest - $166 million. 2) Comprised of the Coleman, Copper Cliff, Garson, Stobie, Creighton, Totten and Victor gold interests. 3) Comprised of the Stillwater and East Boulder gold and palladium interests. 4) Comprised of the Minto, Rosemont and 777 gold interests. 5) Comprised of the Los Filos, Zinkgruvan, Yauliyacu, Stratoni, Keno Hill, Neves-Corvo, Minto, Aljustrel, Loma de La Plata, Pascua-Lama, Rosemont and 777 silver interests.
Classification of Mining Interest Between Depletable and Non-depletable	December 31, 2020 December 31, 2019 (in thousands) Depletable Non- Depletable Total Depletable Non- Depletable Total Gold interests Salobo $ 2,085,359 $ 423,985 $ 2,509,344 $ 2,078,666 $ 526,591 $ 2,605,257 Sudbury 1 269,834 51,182 321,016 290,841 53,202 344,043 Constancia 97,539 8,030 105,569 101,263 9,143 110,406 San Dimas 73,514 108,688 182,202 87,593 106,774 194,367 Stillwater 2 199,616 24,694 224,310 203,163 26,831 229,994 Other 3 7,526 - 7,526 13,168 - 13,168 $ 2,733,388 $ 616,579 $ 3,349,967 $ 2,774,694 $ 722,541 $ 3,497,235 Silver interests Peñasquito $ 258,267 $ 92,305 $ 350,572 $ 287,493 $ 87,209 $ 374,702 Antamina 279,859 347,075 626,934 322,148 346,662 668,810 Constancia 202,475 14,569 217,044 212,173 16,014 228,187 Other 4 98,383 376,592 474,975 83,687 404,006 487,693 $ 838,984 $ 830,541 $ 1,669,525 $ 905,501 $ 853,891 $ 1,759,392 Palladium interests Stillwater 2 $ 231,747 $ 9,642 $ 241,389 $ 238,485 $ 11,484 $ 249,969 Cobalt interests Voisey’s Bay $ 203,436 $ 24,074 $ 227,510 $ - $ 227,510 $ 227,510 $ 4,007,555 $ 1,480,836 $ 5,488,391 $ 3,918,680 $ 1,815,426 $ 5,734,106 1) Comprised of the Coleman, Copper Cliff, Garson, Stobie, Creighton, Totten and Victor gold interests. 2) Comprised of the Stillwater and East Boulder gold and palladium interests. 3) Comprised of the Minto, Rosemont and 777 gold interests. 4) Comprised of the Los Filos, Zinkgruvan, Yauliyacu, Stratoni, Keno Hill, Neves-Corvo, Minto, Aljustrel, Loma de La Plata, Pascua-Lama, Rosemont and 777 silver interests.

Impairment of Mineral Stream _2

Impairment of Mineral Stream Interests (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Schedule of Impairment of Mineral Stream Interests	Years Ended December 31 (in thousands) 2020 2019 Cobalt Interests Voisey’s Bay $ - $ 165,912 Total impairment charges $ - $ 165,912

Early Deposit Mineral Stream _2

Early Deposit Mineral Stream Interests (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Summary of Early Deposit Mineral Stream Interests	The following table summarizes the early deposit mineral stream interests currently owned by the Company: Attributable Early Deposit Mineral Mine Location of Upfront 1 Upfront 1, 2 Total Gold Silver Term of Toroparu Gold X Guyana $ 15,500 $ 138,000 $ 153,500 10 % 50 % Life of Mine Cotabambas Panoro Peru 10,000 130,000 140,000 25 % ³ 100 % ³ Life of Mine Kutcho Kutcho Canada 7,000 58,000 65,000 100 % 4 100 % 4 Life of Mine $ 32,500 $ 326,000 $ 358,500 1) Expressed in thousands of United States dollars; excludes closing costs and capitalized interest, where applicable. 2) Please refer to Note 28 for details of when the remaining upfront consideration to be paid becomes due. 3) Once 90 million silver equivalent ounces attributable to Wheaton have been produced, the attributable production will decrease to 16.67% of gold production and 66.67% of silver production for the life of mine. 4) Once 51,000 ounces of gold and 5.6 million ounces of silver have been delivered to Wheaton, the stream will decrease to 66.67% of gold and silver production for the life of mine.

Convertible Notes Receivable (T

Convertible Notes Receivable (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Schedule of the Company's Convertible Note Receivable	A continuity schedule of these convertible notes from January 1, 2019 to December 31, 2020 is presented below: Year Ended December 31, 2020 (in thousands) Fair Value at Amount Value Fair Value Fair Value at Kutcho $ 11,837 $ - $ - $ (484 ) $ 11,353 Gold X 10,019 - (12,402 ) 2,383 - Total $ 21,856 $ - $ (12,402 ) $ 1,899 $ 11,353 Year Ended December 31, 2019 (in thousands) Fair Value at Amount Value Fair Value Fair Value at Kutcho $ 12,899 $ - $ - $ (1,062 ) $ 11,837 Gold X - 10,000 - 19 10,019 Total $ 12,899 $ 10,000 $ - $ (1,043 ) $ 21,856

Long-Term Equity Investments (T

Long-Term Equity Investments (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Summary of Long-Term Equity Investments	Common Shares Held Year Ended December 31, 2020 (in thousands) Shares % of Fair Value at Cost of 1 Proceeds of 2 Fair Value 3 Fair Value at Realized Gain Bear Creek 13,264 11.80% $ 27,983 $ - $ - $ 4,626 $ 32,609 $ - Sabina 11,700 3.59% 17,296 - - 12,937 30,233 - First Majestic 7,155 3.23% 248,137 - (151,113 ) (1,040 ) 95,984 56,644 Other 16,341 23,570 (11,829 ) 9,333 37,415 4,170 Total $ 309,757 $ 23,570 $ (162,942 ) $ 25,856 $ 196,241 $ 60,814 Year Ended December 31, 2019 (in thousands) Shares % of Fair Value at Cost of Proceeds of 1 Fair Value 2 Fair Value at Realized Gain Bear Creek 13,264 12.84% $ 10,112 $ - $ - $ 17,871 $ 27,983 $ - Sabina 11,700 3.95% 10,549 - - 6,747 17,296 - First Majestic 20,240 9.73% 123,187 - (5,395 ) 130,345 248,137 521 Other 20,905 893 (12,430 ) 6,973 16,341 (7,803 ) Total $ 164,753 $ 893 $ (17,825 ) $ 161,936 $ 309,757 $ (7,282 ) Warrants Held Year Ended December 31, 2020 (in thousands) Fair Value at Cost of 1 Value of Fair Value Fair Value at Other $ - $ 3,299 $ - $ 338 $ 3,637 1) Includes 2 million common share purchase warrants from Alexco with a fair value of $2 million (Note 10), Year Ended December 31, 2019 (in thousands) Fair Value at Cost of Value of Fair Value Fair Value at Other $ - $ 16 $ - $ (16) $ -

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Summary of Property, Plant and Equipment	December 31, 2020 (in thousands) Leasehold Right of Use Other Total Cost Balance - January 1, 2020 $ 4,380 $ 4,738 $ 3,836 $ 12,954 Additions 2 55 429 486 Disposals - - (134) (134) Balance - December 31, 2020 $ 4,382 $ 4,793 $ 4,131 $ 13,306 Accumulated Depreciation Balance - January 1, 2020 $ (2,518) $ (704) $ (2,421) $ (5,643) Disposals - - 134 134 Depreciation (388) (740) (380) (1,508) Balance - December 31, 2020 $ (2,906) $ (1,444) $ (2,667) $ (7,017) Net book value - December 31, 2020 $ 1,476 $ 3,349 $ 1,464 $ 6,289 December 31, 2019 (in thousands) Leasehold Right of Use Other Total Cost Balance - January 1, 2019 $ 4,378 $ - $ 3,318 $ 7,696 Additions upon adoption of IFRS 16 - 4,679 - 4,679 Additions 9 59 547 615 Disposals (7) - (29) (36) Balance - December 31, 2019 $ 4,380 $ 4,738 $ 3,836 $ 12,954 Accumulated Depreciation Balance - January 1, 2019 $ (2,024) $ - $ (2,046 ) $ (4,070) Disposals 7 - 29 36 Depreciation (501) (704) (404) (1,609) Balance - December 31, 2019 $ (2,518) $ (704) $ (2,421) $ (5,643) Net book value - December 31, 2019 $ 1,862 $ 4,034 $ 1,415 $ 7,311

Credit Facilities (Tables)

Credit Facilities (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Details of Bank Debt	December 31 December 31 (in thousands) 2020 2019 Current portion $ - $ - Long-term portion 195,000 874,500 Gross bank debt outstanding 1 $ 195,000 $ 874,500 1) There is $5 million unamortized debt issue costs associated with the Revolving Facility which have been recorded as a long-term asset under the classification Other (see Note 25).
Summary of Lease Liabilities Explanatory	The lease liability relative to the Company’s offices located in Vancouver, Canada and the Cayman Islands is as follows: December 31 December 31 (in thousands) 2020 2019 Current portion $ 773 $ 724 Long-term portion 2,864 3,528 Total lease liabilities $ 3,637 $ 4,252
Summary of Finance Lease Maturity Analys is Explanatory	The maturity analysis of these leases is as follows: December 31 (in thousands) 2020 Not later than 1 year $ 773 Later than 1 year and not later than 5 years 2,864 Later than 5 years - Total lease liabilities $ 3,637
Summary of Company's Finance Costs	A summary of the Company’s finance costs relative to the above facilities during the period is as follows: Years Ended December 31 (in thousands) Note 2020 2019 Interest Expense During Period Average principal outstanding during period $ 601,112 $ 1,099,846 Average effective interest rate during period 17.1 2.03% 4.07% Total interest expense incurred during period $ 12,226 $ 44,767 Costs related to undrawn credit facilities 17.1 4,349 3,834 Interest expense - lease liabilities 17.2 140 175 Letters of guarantee - (46) Total finance costs $ 16,715 $ 48,730

Issued Capital (Tables)

Issued Capital (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Summary of Capital Issued	December 31 December 31 (in thousands) Note 2020 2019 Issued capital Share capital issued and outstanding: 449,458,394 common shares (December 31, 2019: 447,771,433 common shares) 18.1 $ 3,646,291 $ 3,599,203
Summary of Common Shares Issued and Outstanding	A continuity schedule of the Company’s issued and outstanding common shares from January 1, 2019 to December 31, 2020 is presented below: Number Weighted At January 1, 2019 444,336,361 Share purchase options exercised 1 2,039,735 Cdn$25.79 Restricted share units released 1 133,670 Cdn$0.00 Dividend reinvestment plan 2 1,261,667 US$24.31 At December 31, 2019 447,771,433 Share purchase options exercised 1 1,056,363 Cdn$25.70 Restricted share units released 1 128,405 Cdn$0.00 Dividend reinvestment plan 2 502,193 US$37.87 At December 31, 2020 449,458,394 1) The weighted average price of share purchase options exercised and restricted share units released represents the respective exercise price. 2) The Company has implemented a dividend reinvestment plan (“DRIP”) whereby shareholders can elect to have dividends reinvested directly into additional Wheaton common shares. The weighted average price for common shares issued under the DRIP represents the volume weighted average price of the common shares on the five trading days preceding the dividend payment date, less a discount of 1% (2019 – 3%).
Schedule of Dividends Declared	Years Ended December 31 (in thousands, except per share amounts) 2020 2019 Dividends declared per share $ 0.42 $ 0.36 Average number of shares eligible for dividend 448,777 446,267 Total dividends paid $ 188,486 $ 160,656 Paid as follows: Cash $ 167,211 89 % $ 129,986 81% DRIP 1 21,275 11 % 30,670 19% Total dividends paid $ 188,486 100 % $ 160,656 100% Shares issued under the DRIP 502 1,262 1) The Company has implemented a DRIP whereby shareholders can elect to have dividends reinvested directly into additional Wheaton common shares. 2) As at December 31, 2020, cumulative dividends of $1,267 million have been declared and paid by the Company.

Reserves (Tables)

Reserves (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Summary of Reserves	Note December 31 December 31 (in thousands) 2020 2019 Reserves Share purchase warrants 19.1 $ 83,077 $ 83,077 Share purchase options 19.2 21,855 24,010 Restricted share units 19.3 6,815 6,405 Long-term investment revaluation reserve, net of tax 19.4 15,135 47,209 Total reserves $ 126,882 $ 160,701
Summary of Share Purchase Warrants	The Company’s share purchase warrants (“warrants”) are presented below: Number of Weighted Exchange Share Warrants outstanding 10,000,000 $43.75 1.00 $ 83,077
Summary of Fair Value of Share Purchase Options	The weighted average fair value of share purchase options granted and principal assumptions used in applying the Black-Scholes option pricing model are as follows:​​​​​​​ Years Ended December 31 2020 2019 Black-Scholes weighted average assumptions Grant date share price and exercise price Cdn$33.47 Cdn$32.88 Expected dividend yield 1.78% 1.49% Expected volatility 30% 31% Risk-free interest rate 0.52% 1.60% Expected option life, in years 2.5 2.5 Weighted average fair value per option granted Cdn$5.57 Cdn$6.10 Number of options issued during the period 451,110 583,500 Total fair value of options issued (000’s) $ 1,807 $ 2,652
Disclosure of Information About Options Outstanding and Exercisable	The following table summarizes information about the options outstanding and exercisable at December 31, 2020: Exercise Price (Cdn$) Exercisable Non-Exercisable Total Options Weighted $22.82¹ 8,000 - 8,000 0.3 years $23.26 250,000 - 250,000 0.3 years $25.99¹ 14,880 - 14,880 2.3 years $26.24 318,755 - 318,755 2.3 years $26.27¹ 12,400 - 12,400 1.3 years $27.03 1,115 1,115 2,230 3.4 years $27.51 205,150 - 205,150 1.3 years $30.66¹ - 76,800 76,800 4.2 years $30.82 1,492 2,985 4,477 3.5 years $31.26¹ 26,640 47,740 74,380 3.3 years $32.93 215,035 232,820 447,855 3.3 years $33.47 - 371,890 371,890 4.2 years 1,053,467 733,350 1,786,817 2.6 years 1) US$ share purchase options converted to Cdn$ using the exchange rate of 1.2732, being the Cdn$/US$ exchange rate at December 31, 2020.
Disclosure of Share Purchase Options Reserve	A continuity schedule of the Company’s outstanding share purchase options from January 1, 2019 to December 31, 2020 is presented below: Number of Weighted At January 1, 2019 3,883,350 Cdn$25.71 Granted (fair value - $3 million or Cdn$6.10 per option) 583,500 32.88 Exercised (2,039,735) 25.79 Forfeited (15,475) 31.04 Expired (17,150) 30.69 At December 31, 2019 2,394,490 Cdn$27.08 Granted (fair value - $2 million or Cdn$5.57 per option) 451,110 33.47 Exercised (1,056,363) 25.70 Forfeited (2,420) 32.01 At December 31, 2020 1,786,817 Cdn$29.54 As it relates to share purchase options, during the year ended December 31, 2020, the weighted average share price at the time of exercise was Cdn$54.13 per share, as compared to Cdn$34.83 per share during the comparable period in 2019.
Disclosure of Restricted Share Units Reserve	A continuity schedule of the Company’s restricted share units outstanding from January 1, 2019 to December 31, 2020 is presented below: Number of Weighted At January 1, 2019 370,133 $20.36 Granted (fair value - $3 million) 132,620 24.51 Released (133,670) 20.82 Forfeited (2,760) 23.19 At December 31, 2019 366,323 $21.67 Granted (fair value - $3 million) 132,960 24.26 Released (128,405) 22.25 Forfeited (620) 24.11 At December 31, 2020 370,258 $22.40
Disclosure of Long Term Investment Revaluation Reserve	A continuity schedule of the Company’s long-term investment revaluation reserve from January 1, 2019 to December 31, 2020 is presented below: (in thousands) Change in Deferred Total At January 1, 2019 $ (112,156) $ - $ (112,156) Unrealized gain (loss) on LTIs 1 161,936 (9,623) 152,313 Reallocate reserve to retained earnings upon disposal of LTIs 1 7,282 (230) 7,052 At December 31, 2019 $ 57,062 $ (9,853) $ 47,209 Unrealized gain (loss) on LTIs 1 25,856 (1,866) 23,990 Reallocate reserve to retained earnings upon disposal of LTIs 1 15 (60,815) 4,751 (56,064) At December 31, 2020 $ 22,103 $ (6,968) $ 15,135

Stock Based Compensation (Table

Stock Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Schedule of the Company's Outstanding PSUs	A continuity schedule of the Company’s outstanding PSUs (assuming a performance factor of 100% is achieved over the performance period) and the Company’s PSU accrual from January 1, 2019 to December 31, 2020 is presented below: (in thousands, except for number of PSUs outstanding) Number of PSU accrual At January 1, 2019 655,727 $ 10,756 Granted 191,410 - Accrual related to the fair value of the PSUs outstanding - 17,174 Foreign exchange adjustment - 479 Paid (229,050) (9,325) Forfeited (13,395) (15) At December 31, 2019 604,692 $ 19,069 Granted 193,830 - Accrual related to the fair value of the PSUs outstanding - 21,526 Foreign exchange adjustment - 614 Paid (204,142) (12,123) Forfeited (1,230) (5) At December 31, 2020 593,150 $ 29,081
Schedule of Performance Share Units Outstanding	A summary of the PSUs outstanding at December 31, 2020 is as follows: Year Year of Number Estimated Anticipated Percent of PSU 2018 2021 213,820 $43.82 200% 92% 17,297 2019 2022 186,730 $42.98 193% 59% 9,140 2020 2023 192,600 $42.40 122% 26% 2,644 593,150 $ 29,081

Earnings per Share ("EPS") an_2

Earnings per Share ("EPS") and Diluted Earnings per Share ("Diluted EPS") (Tables)	12 Months Ended
	Dec. 31, 2020
Profit or loss [abstract]
Summary of Diluted EPS Calculated Based on Weighted Average Number of Shares Outstanding	Diluted EPS is calculated based on the following weighted average number of shares outstanding: Years Ended December 31 (in thousands) 2020 2019 Basic weighted average number of shares outstanding 448,694 446,021 Effect of dilutive securities Share purchase options 1,003 627 Restricted share units 373 282 Diluted weighted average number of shares outstanding 450,070 446,930
Summary of Share Purchase Options and Share Purchase Warrants Excluded From Computation of Diluted Earnings Per Share	The following table lists the number of share purchase options and share purchase warrants excluded from the computation of diluted earnings per share because the exercise prices exceeded the average market value of the common shares of Cdn$54.79, compared to Cdn$32.40 for the comparable period in 2019. Years Ended December 31 (in thousands) 2020 2019 Share purchase options - 477 Share purchase warrants 10,000 10,000 Total 10,000 10,477

Supplemental Cash Flow Inform_2

Supplemental Cash Flow Information (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Summary of Cash Flow Information	Change in Non-Cash Years Ended December 31 (in thousands) 2020 2019 Change in non-cash Accounts receivable $ (1,181) $ (2,514) Accounts payable and accrued liabilities 3,110 (9,791) Other (904) 468 Total change in non-cash $ 1,025 $ (11,837)

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Schedule of Income Tax Expense (Recovery)	Income tax recognized in net earnings is comprised of the following: Years Ended December 31 (in thousands) 2020 2019 Current income tax expense (recovery) $ (4,606 ) $ 144 Deferred income tax expense (recovery) related to: Origination and reversal of temporary differences $ 14,546 $ 7,311 Write down (reversal of write down) or recognition of prior period temporary differences (12,415 ) (16,521 ) Total deferred income tax expense (recovery) $ 2,131 $ (9,210 ) Income tax expense (recovery) recognized in net earnings $ (2,475 ) $ (9,066 )
Schedule of Income Tax Recognized as Component of OCI	Income tax recognized as a component of OCI is comprised of the following: Years Ended December 31 (in thousands) 2020 2019 Income tax expense (recovery) related to LTIs - common shares held $ 1,866 $ 9,623
Schedule of Income Tax Recognized Directly in Equity	Income tax recognized directly in equity is comprised of the following: Years Ended December 31 (in thousands) 2020 2019 Income tax expense (recovery) recognized in equity $ 820 $ (376 )
Schedule of Provision for Income taxes	The provision for income taxes differs from the amount that would be obtained by applying the statutory income tax rate to consolidated earnings before income taxes due to the following: Years Ended December 31 (in thousands) 2020 2019 Earnings before income taxes $ 505,329 $ 77,072 Canadian federal and provincial income tax rates 27.00% 27.00% Income tax expense (recovery) based on above rates $ 136,439 $ 20,809 Non-deductible 3,057 3,362 Differences in tax rates in foreign jurisdictions (134,206 ) (78,724 ) Current period unrecognized temporary differences - impairment of mineral stream interests - 44,796 Current period unrecognized temporary differences 4,650 17,212 Write down (reversal of write down) or recognition of prior period temporary differences (12,415 ) (16,521 ) Income tax expense (recovery) $ (2,475 ) $ (9,066 )
Deferred Income Tax Assets and Liabilities Recognized	The recognized deferred income tax assets and liabilities are offset on the balance sheet and relate to Canada, except for the foreign withholding tax. The movement in deferred income tax assets and liabilities for the years ended December 31, 2020 and December 31, 2019, respectively, is shown below: Year Ended December 31, 2020 Opening Recovery Recovery Recovery Closing Recognized deferred income tax assets and liabilities Deferred tax assets Non-capital 1 $ 8,756 $ (2,077 ) $ - $ (785 ) $ 5,894 Capital loss carryforward 2 8,953 (4,733 ) (3,459 ) - 761 Other 3 694 4,806 - - 5,500 Deferred tax liabilities Interest capitalized for accounting (87 ) - - - (87 ) Debt and share financing fees 4 (711 ) 18 - (35 ) (728 ) Unrealized gains on long-term investments (14,073 ) (79 ) 6,344 - (7,808 ) Mineral stream interests 5 (3,532 ) - - - (3,532 ) Foreign withholding tax (148 ) (66 ) - - (214 ) Total $ (148 ) $ (2,131 ) $ 2,885 $ (820 ) $ (214 ) 1) As at December 31, 2020, the Company had recognized the tax effect on $22 million of non-capital 2) As at December 31, 2020, the Company had recognized the tax effect on $3 million of net capital losses to offset unrealized taxable capital gains on long-term investments. 3) Other includes capital assets, charitable donation carryforward and PSU and pension liabilities. 4) Debt and share financing fees are deducted over a five year period for Canadian income tax purposes. For accounting purposes, debt financing fees are deducted over the term of the credit facility and share financing fees are charged directly to issued capital. 5) The Company’s position, as reflected in its filed Canadian income tax returns and consistent with the terms of the PMPAs, is that the cost of the precious metal acquired under the Canadian PMPAs is equal to the market value while a deposit is outstanding (where applicable to an agreement), and the cash cost thereafter. For accounting purposes, the cost of the mineral stream interests is depleted on a unit-of-production Year Ended December 31, 2019 Opening Recovery Recovery Recovery Closing Recognized deferred income tax assets and liabilities Deferred tax assets Non-capital $ 3,823 $ 4,497 $ - $ 436 $ 8,756 Capital loss carryforward - 4,503 4,450 - 8,953 Other 387 307 - - 694 Deferred tax liabilities Interest capitalized for accounting (87 ) - - - (87 ) Debt and share financing fees (591 ) (60 ) - (60 ) (711 ) Unrealized gains on long-term investments - - (14,073 ) - (14,073 ) Mineral stream interests (3,532 ) - - - (3,532 ) Foreign withholding tax (111 ) (37 ) - - (148 ) Total $ (111 ) $ 9,210 $ (9,623 ) $ 376 $ (148 )
Schedule of Deferred Income Tax Assets Unrecognized	Deferred income tax assets in Canada not recognized are shown below: (in thousands) December 31 December 31 Non-capital 1 $ 26,313 $ 19,145 Debt and equity financing fees - 1,383 Mineral stream interests 96,646 107,785 Other 2,296 4,282 Kutcho Convertible Note 1,330 951 Unrealized losses on long-term investments 5,125 6,733 Total $ 131,710 $ 140,279 1) As at December 31, 2020, the Company had not recognized the tax effect on $97 million of non-capital

Other Current Assets (Tables)

Other Current Assets (Tables)	12 Months Ended
	Dec. 31, 2020
Miscellaneous current assets [abstract]
Disclosure of other current assets	The composition of other current assets is shown below: December 31 December 31 (in thousands) Note 2020 2019 Non-revolving $ 813 $ 431 Prepaid expenses 2,388 1,492 Class action settlement recoverable 28 - 41,500 Other 64 205 Total other current assets $ 3,265 $ 43,628

Other Long-Term Assets (Tables)

Other Long-Term Assets (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Composition of other long term assets table explanatory	The composition of other long-term assets is shown below: December 31 December 31 (in thousands) Note 2020 2019 Intangible assets $ 3,036 $ 3,419 Debt issue costs - Revolving Facility 17.1 5,202 5,154 Other 5,004 6,875 Total other long-term assets $ 13,242 $ 15,448

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Schedule of Key Management Personnel Compensation, Including Directors	Key management personnel compensation, including directors, is as follows: Years Ended December 31 (in thousands) 2020 2019 Short-term benefits 1 $ 8,031 $ 6,599 Post-employment benefits 658 661 PSUs 2 12,528 10,643 Equity settled stock based compensation (a non-cash 3 3,555 3,709 Total executive compensation $ 24,772 $ 21,612 1) Short-term employee benefits include salaries, bonuses payable within twelve months of the balance sheet date and other annual employee benefits. 2) As more fully disclosed in Note 20.1, PSU compensation expense is recorded on a straight-line basis over the three year vesting period, with the expense being adjusted at the end of each reporting period to reflect (i) the fair value of common shares; (ii) the number of PSUs anticipated to vest; and (iii) the anticipated performance factor. 3) As more fully disclosed in Notes 19.2 and 19.3, equity settled stock based compensation expense is recorded on a straight-line basis over the vesting period.

Post-Employment Benefit Costs (

Post-Employment Benefit Costs (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Schedule of post employment benefits	A summary of the Company’s post-employment benefit costs during the years ended December 31, 2020 and 2019 is summarized below: Years Ended December 31 (in thousands) 2020 2019 Post-employment benefits Supplemental Employee Retirement Plan (SERP) $ 806 $ 810 Group RRSP 257 223 Total post-employment benefits $ 1,063 $ 1,033

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Summary of Commitments to Purchase Mineral Stream	The following table summarizes the Company’s commitments to make per-ounce Mineral Stream Interests Attributable Payable Production to be Per Unit of Measurement Cash Payment 1 Term of Date of Gold Silver Palladium Cobalt Gold Silver Palladium Cobalt Peñasquito 0% 25% 0% 0% n/a $ 4.29 n/a n/a Life of Mine 24-Jul-07 Constancia 50% 100% 0% 0% $ 408 ² $ 6.02 ² n/a n/a Life of Mine 8-Aug-12 Salobo 75% 0% 0% 0% $ 412 n/a n/a n/a Life of Mine 28-Feb-13 Sudbury 70% 0% 0% 0% $ 400 n/a n/a n/a 20 years 28-Feb-13 Antamina 0% 33.75% 0% 0% n/a 20% n/a n/a Life of Mine 3-Nov-15 San Dimas variable ³ 0% ³ 0% 0% $ 606 n/a n/a n/a Life of Mine 10-May-18 Stillwater 100% 0% 4.5% 4 0% 18% 5 n/a 18% 5 n/a Life of Mine 16-Jul-18 Voisey’s Bay 0% 0% 0% 42.4% 6 n/a n/a n/a 18% 7 Life of Mine 11-Jun-18 Other Los Filos 0% 100% 0% 0% n/a $ 4.46 n/a n/a 25 years 15-Oct-04 Zinkgruvan 0% 100% 0% 0% n/a $ 4.46 n/a n/a Life of Mine 8-Dec-04 Yauliyacu 0% 100% 8 0% 0% n/a $ 8.94 9 n/a n/a Life of Mine 23-Mar-06 Stratoni 0% 100% 0% 0% n/a $ 11.43 10 n/a n/a Life of Mine 23-Apr-07 Neves-Corvo 0% 100% 0% 0% n/a $ 4.34 n/a n/a 50 years 5-Jun-07 Aljustrel 0% 100% ¹¹ 0% 0% n/a 50% n/a n/a 50 years 5-Jun-07 Minto 100% ¹² 100% 0% 0% 75% ¹³ $ 4.31 n/a n/a Life of Mine 20-Nov-08 Keno Hill 0% 25% 0% 0% n/a variable 14 n/a n/a Life of Mine 2-Oct-08 Pascua-Lama 0% 25% 0% 0% n/a $ 3.90 n/a n/a Life of Mine 8-Sep-09 Rosemont 100% 100% 0% 0% $ 450 $ 3.90 n/a n/a Life of Mine 10-Feb-10 Loma de La Plata 0% 12.5% 0% 0% n/a $ 4.00 n/a n/a Life of Mine n/a 15 777 50% 100% 0% 0% $ 425 ² $ 6.26 ² n/a n/a Life of Mine 8-Aug-12 Marmato 6.5% 16 100% 16 0% 0% 18% 17 18% 17 n/a n/a Life of Mine 5-Nov-20 Cozamin 0% 50% 18 0% 0% n/a 10% n/a n/a Life of Mine 10-Dec-20 Early Deposit Toroparu 10% 50% 0% 0% $ 400 $ 3.90 n/a n/a Life of Mine 11-Nov-13 Cotabambas 25% 19 100% 19 0% 0% $ 450 $ 5.90 n/a n/a Life of Mine 21-Mar-16 Kutcho 100% 20 100% 20 0% 0% 20% 20% n/a n/a Life of Mine 14-Dec-17 1) The production payment is measured as either a fixed amount per ounce of metal delivered, or as a percentage of the spot price of the underlying metal on the date of delivery. Contracts where the payment is a fixed amount per ounce of metal delivered are subject to an annual inflationary increase, with the exception of Loma de La Plata and Sudbury. Additionally, should the prevailing market price for the applicable metal be lower than this fixed amount, the per ounce cash payment will be reduced to the prevailing market price, with the exception of Yauliyacu where the per ounce cash payment will not be reduced below $4.44, subject to an annual inflationary factor. 2) Subject to an increase to $9.90 per ounce of silver and $550 per ounce of gold after the initial 40-year 3) Under the terms of the San Dimas PMPA, the Company is entitled to an amount equal to 25% of the payable gold production plus an additional amount of gold equal to 25% of the payable silver production converted to gold at a fixed gold to silver exchange ratio of 70:1 from the San Dimas mine. If the average gold to silver price ratio decreases to less than 50:1 or increases to more than 90:1 for a period of 6 months or more, then the “70” shall be revised to “50” or “90”, as the case may be, until such time as the average gold to silver price ratio is between 50:1 to 90:1 for a period of 6 months or more in which event the “70” shall be reinstated. Effective April 1, 2020, the fixed gold to silver exchange ratio was revised to 90:1, with the 70:1 ratio being reinstated on October 15, 2020. 4) The Company is committed to purchase 4.5% of Stillwater palladium production until 375,000 ounces are delivered to the Company, thereafter 2.25% of Stillwater palladium production until 550,000 ounces are delivered to the Company and 1% of Stillwater palladium production thereafter for the life of mine. 5) To be increased to 22% of the spot price once the market value of gold and palladium delivered to Wheaton, net of the per ounce cash payment, exceeds the initial upfront cash deposit. 6) Once the Company has received 31 million pounds of cobalt, the Company’s attributable cobalt production will be reduced to 21.2%. 7) To be increased to 22% of the spot price once the market value of cobalt delivered to Wheaton, net of the per pound cash payment, exceeds the initial upfront cash deposit. 8) The Company is committed to purchase an amount equal to 100% of the first 1.5 million ounces of payable silver produced at Yauliyacu per annum and 50% of any excess. 9) Should the market price of silver exceed $20 per ounce, in addition to the $8.94 per ounce, the Company is committed to pay Glencore an additional amount for each ounce of silver delivered equal to 50% of the excess, to a maximum of $10 per ounce, such that when the market price of silver is $40 or above, the Company will pay Glencore $18.94 per ounce of silver delivered. 10) In October 2015, in order to incentivize additional exploration and potentially extend the limited remaining mine life of Stratoni, Wheaton and Eldorado Gold agreed to modify the Stratoni PMPA such that the production price per ounce of silver delivered to Wheaton would be increased over the then fixed price based on the amount of drilling completed outside of the existing ore body and within Wheaton’s defined area of interest (“Expansion Drilling”) by December 31, 2020.The figures in the above table reflect the fact that Eldorado completed a total of 30,000 meters of Expansion Drilling, resulting in a $7.00 per ounce increase. 11) Wheaton only has the rights to silver contained in concentrate containing less than 15% copper at the Aljustrel mine. 12) The Company is committed to acquire 100% of the first 30,000 ounces of gold produced per annum and 50% thereafter. 13) The Company has amended the Minto PMPA such that the cash payment per ounce of gold delivered will be 75% of the spot price of gold. This amended pricing will end on the earlier of (i) 14 months after the first delivery is due; or (ii) once 11,000 ounces of gold have been delivered to the Company. Once this amended pricing ends, the cash payment per ounce of gold delivered will be $325, subject to an increase in periods where the market price of copper is lower than $2.50 per pound. 14) Effective July 2020, the price paid per ounce of silver delivered under the Keno Hill PMPA has been modified to be between 10% of the spot price of silver when the market price of silver is at or above $23.00 per ounce, to 90% of the spot price of silver when the market price of silver is at or below $15.00 per ounce. 15) Terms of the agreement not yet finalized. 16) Once Wheaton has received 190,000 ounces of gold and 2.15 million ounces of silver under the Marmato PMPA the Company’s attributable gold and silver production will be reduced to 3.25% and 50%, respectively. 17) To be increased to 22% of the spot price once the market value of gold and silver delivered to the Company, net of the per ounce cash payment, exceeds the initial upfront cash deposit. 18) Once Wheaton has received 10 million ounces, the Company’s attributable silver production will be reduced to 33% of silver production for the life of the mine. 19) Once 90 million silver equivalent ounces attributable to Wheaton have been produced, the attributable production will decrease to 16.67% of gold production and 66.67% of silver production for the life of mine. 20) Once 51,000 ounces of gold and 5.6 million ounces of silver have been delivered to Wheaton, attributable production will decrease to 66.67% of gold and silver production for the life of mine.
Summary of Other Contractual Obligations and Contingencies	Other Contractual Obligations and Contingencies Obligations With Scheduled Payment Dates (in thousands) 2021 2022 - 2024 2025 - 2026 After 2026 Sub-Total Other Total Bank debt 1 $ - $ - $ 195,000 $ - $ 195,000 $ - $ 195,000 Interest 2 2,311 8,722 622 - 11,655 - 11,655 Payments for mineral stream interests Rosemont 3 - - - - - 231,150 231,150 Loma de La Plata - - - - - 32,400 32,400 Marmato 38,000 - - - 38,000 72,000 110,000 Cozamin 4 150,000 - - - 150,000 - 150,000 Salobo 5 - 670,000 - - 670,000 - 670,000 Payments for early deposit mineral stream interest Toroparu - - - - - 138,000 138,000 Cotabambas 1,500 2,500 - - 4,000 126,000 130,000 Kutcho - - - - - 58,000 58,000 Non-revolving 6 208 - - - 208 - 208 Leases liabilities 895 2,733 336 - 3,964 - 3,964 Total contractual obligations $ 192,914 $ 683,955 $ 195,958 $ - $ 1,072,827 $ 657,550 $ 1,730,377 1) At December 31, 2020, the Company had $195 million drawn and outstanding on the Revolving Facility. 2) As the applicable interest rates are floating in nature, the interest charges are estimated based on market-based forward interest rate curves at the end of the reporting period combined with the assumption that the principal balance outstanding at December 31, 2020 does not change until the debt maturity date. 3) Includes contingent transaction costs of $1 million. 4) In connection with the Cozamin PMPA, the Company paid Capstone $150 million on February 19, 2021 once certain conditions had been met. 5) As more fully explained on the following page, assuming the Salobo III expansion project achieves 12 Mtpa of additional processing capacity (bringing total processing capacity at Salobo to 36 Mtpa) by the end of 2022, the Company would expect to pay an estimated expansion payment of between $570 million to $670 million. 6) Represents the maximum amount available to Kutcho under the non-revolving

Segmented Information (Tables)

Segmented Information (Tables)	12 Months Ended
	Dec. 31, 2020
Text block [abstract]
Schedule of Operating Segments	The Company’s reportable operating segments, which are the components of the Company’s business where discrete financial information is available and which are evaluated on a regular basis by the Company’s Chief Executive Officer (“CEO”), who is the Company’s chief operating decision maker, for the purpose of assessing performance, are summarized in the tables below: Year Ended December 31, 2020 Sales Cost Depletion Net Cash Flow Total (in thousands) Gold Salobo 4 $ 450,166 $ 104,545 $ 95,913 $ 249,708 $ 345,621 $ 2,509,344 Sudbury 1, 4 49,791 11,085 23,027 15,679 38,609 321,016 Constancia 25,556 5,812 4,837 14,907 19,744 105,569 San Dimas 68,519 23,541 12,165 32,813 44,978 182,202 Stillwater 22,353 4,003 5,684 12,666 18,351 224,310 Other 2, 4 36,442 8,443 5,642 22,357 28,007 7,526 Total gold interests $ 652,827 $ 157,429 $ 147,268 $ 348,130 $ 495,310 $ 3,349,967 Silver Peñasquito 4 $ 150,720 $ 31,704 $ 24,130 $ 94,886 $ 119,016 $ 350,572 Antamina 4 102,241 20,053 41,876 40,312 82,188 626,934 Constancia 31,285 8,745 11,143 11,397 22,541 217,044 Other 3, 4 115,379 41,027 10,892 63,460 74,159 474,975 Total silver interests $ 399,625 $ 101,529 $ 88,041 $ 210,055 $ 297,904 $ 1,669,525 Palladium Stillwater $ 43,772 $ 7,805 $ 8,580 $ 27,387 $ 35,967 $ 241,389 Cobalt Voisey’s Bay 4 $ - $ - $ - $ - $ - $ 227,510 Total mineral stream interests $ 1,096,224 $ 266,763 $ 243,889 $ 585,572 $ 829,181 $ 5,488,391 Other General and administrative $ (65,698 ) $ (46,914 ) Finance costs (16,715 ) (17,551 ) Other 2,170 677 Income tax 2,475 49 Total other $ (77,768 ) $ (63,739 ) $ 468,881 Consolidated $ 507,804 $ 765,442 $ 5,957,272 1) Comprised of the operating Coleman, Copper Cliff, Garson, Creighton and Totten gold interests as well as the non-operating 2) Where a gold interest represents less than 10% of the Company’s sales, gross margin or aggregate asset book value and is not evaluated on a regular basis by the Company’s CEO for the purpose of assessing performance, the gold interest has been summarized under Other gold interests. Other gold interests are comprised of the operating 777 and Minto gold interests, the non-operating 3) Where a silver interest represents less than 10% of the Company’s sales, gross margin or aggregate asset book value and is not evaluated on a regular basis by the Company’s CEO for the purpose of assessing performance, the silver interest has been summarized under Other silver interests. Other silver interests are comprised of the operating Los Filos, Zinkgruvan, Yauliyacu, Stratoni, Neves-Corvo, Aljustrel, Minto, Keno Hill and 777 silver interests, the non-operating 4) As it relates to mine operator concentration risk: a. The counterparty obligations under the Salobo, Sudbury and Voisey’s Bay PMPAs are guaranteed by the parent company Vale. Total revenues relative to Vale during the year ended December 31, 2020 were 46% of the Company’s total revenue. b. The counterparty obligations under the Antamina PMPA and the Yauliyacu PMPA (which is included as part of Other silver interests) are guaranteed by the parent company Glencore plc (“Glencore”) and its subsidiary. Total revenues relative to Glencore during the year ended December 31, 2020 were 12% of the Company’s total revenue. c. The counterparty obligations under the Peñasquito PMPA are guaranteed by the parent company Newmont Corporation (“Newmont”). Total revenues relative to Newmont during the year ended December 31, 2020 were 14% of the Company’s total revenue. Should any of these mine operators become unable or unwilling to fulfill their obligations under their agreements with the Company, there could be a material adverse impact on the Company including, but not limited to, the Company’s revenue, net income and cash flows from operations. Year Ended December 31, 2019 Sales Cost Depletion Gross Impairment 1 Net Cash Flow Total (in thousands) Gold Salobo 5 $ 365,448 $ 106,282 $ 100,803 $ 158,363 $ - $ 158,363 $ 259,166 $ 2,605,257 Sudbury 2, 5 38,234 10,946 22,420 4,868 - 4,868 27,385 344,043 Constancia 5 27,613 7,945 7,141 12,527 - 12,527 19,668 110,406 San Dimas 62,528 26,994 13,828 21,706 - 21,706 35,534 194,367 Stillwater 17,303 3,094 6,433 7,776 - 7,776 14,209 229,994 Other 3, 5 29,919 8,736 8,191 12,992 - 12,992 21,561 13,168 Total gold interests $ 541,045 $ 163,997 $ 158,816 $ 218,232 $ - $ 218,232 $ 377,523 $ 3,497,235 Silver Peñasquito $ 74,578 $ 19,267 $ 14,020 $ 41,291 $ - $ 41,291 $ 55,310 $ 374,702 Antamina 5 76,328 15,322 41,267 19,739 - 19,739 61,007 668,810 Constancia 5 38,895 14,258 18,044 6,593 - 6,593 24,637 228,187 Other 4, 5 98,600 40,059 14,960 43,581 - 43,581 55,509 487,693 Total silver interests $ 288,401 $ 88,906 $ 88,291 $ 111,204 $ - $ 111,204 $ 196,463 $ 1,759,392 Palladium Stillwater $ 31,886 $ 5,656 $ 9,719 $ 16,511 $ - $ 16,511 $ 26,230 $ 249,969 Cobalt Voisey’s Bay 5 $ - $ - $ - $ - $ 165,912 $ (165,912 ) $ - $ 227,510 Total mineral stream interests $ 861,332 $ 258,559 $ 256,826 $ 345,947 $ 165,912 $ 180,035 $ 600,216 $ 5,734,106 Other General and administrative $ (54,507 ) $ (46,292 ) Finance costs (48,730 ) (44,733 ) Other 274 (2,191 ) Income tax 9,066 (5,380 ) Total corporate $ (93,897 ) $ (98,596 ) $ 543,901 Consolidated $ 86,138 $ 501,620 $ 6,278,007 1) See Note 11 for more information. 2) Comprised of the operating Coleman, Copper Cliff, Garson, Creighton and Totten gold interests as well as the non-operating 3) Where a gold interest represents less than 10% of the Company’s sales, gross margin or aggregate asset book value and is not evaluated on a regular basis by the Company’s CEO for the purpose of assessing performance, the gold interest has been summarized under Other gold interests. Other gold interests are comprised of the operating 777 and Minto gold interests and the non-operating 4) Where a silver interest represents less than 10% of the Company’s sales, gross margin or aggregate asset book value and is not evaluated on a regular basis by the Company’s CEO for the purpose of assessing performance, the silver interest has been summarized under Other silver interests. Other silver interests are comprised of the operating Los Filos, Zinkgruvan, Yauliyacu, Stratoni, Aljustrel, Neves-Corvo, Minto, and 777 silver interests, the non-operating 5) As it relates to mine operator concentration risk: a. The counterparty obligations under the Salobo, Sudbury and Voisey’s Bay PMPAs are guaranteed by the parent company Vale. Total revenues relative to Vale during the year ended December 31, 2019 were 47% of the Company’s total revenue. b. The counterparty obligations under the Antamina PMPA and the Yauliyacu PMPA (which is included as part of Other silver interests) are guaranteed by the parent company Glencore plc (“Glencore”) and its subsidiary. Total revenues relative to Glencore during the year ended December 31, 2019 were 12% of the Company’s total revenue. c. The counterparty obligations under the Constancia PMPA and the 777 PMPA (which is included as part of Other gold and silver interests) are guaranteed by the parent company Hudbay Minerals Inc. (“Hudbay”). Total revenues relative to Hudbay during the year ended December 31, 2019 were 11% of the Company’s total revenue. Should any of these mine operators become unable or unwilling to fulfill their obligations under their agreements with the Company, there could be a material adverse impact on the Company including, but not limited to, the Company’s revenue, net income and cash flows from operations.
Schedule of Company's Geographical Information	The Company’s geographical information, which is based on the location of the mining operations to which the mineral stream interests relate, are summarized in the tables below: Carrying Amount at December 31, 2020 (in thousands) Sales: Gold Silver Palladium Cobalt Total North America Canada $ 94,239 9 % $ 328,543 $ 28,412 $ - $ 227,510 $ 584,465 10 % United States 66,125 6 % 224,310 566 241,389 - 466,265 8 % Mexico 220,768 20 % 182,201 351,974 - - 534,175 10 % Europe Greece 11,488 1 % - - - - - 0 % Portugal 33,460 3 % - 20,261 - - 20,261 0 % Sweden 34,486 3 % - 32,956 - - 32,956 1 % South America Argentina/Chile 1 - 0 % - 264,402 - - 264,402 5 % Brazil 450,166 41 % 2,509,344 - - - 2,509,344 46 % Peru 185,492 17 % 105,569 970,614 - - 1,076,183 20 % Colombia - 0 % - 340 - - 340 0 % Consolidated $ 1,096,224 100 % $ 3,349,967 $ 1,669,525 $ 241,389 $ 227,510 $ 5,488,391 100 % 1) Includes the Pascua-Lama project, which straddles the border of Argentina and Chile. Carrying Amount at December 31, 2019 (in thousands) Sales: Gold Silver Palladium Cobalt Total North America Canada $ 74,307 9 % $ 357,212 $ 32,124 $ - $ 227,510 $ 616,846 11 % United States 49,189 6 % 229,994 566 249,969 - 480,529 8 % Mexico 139,275 16 % 194,365 376,020 - - 570,385 10 % Europe Greece 9,339 1 % - 1,990 - - 1,990 0 % Portugal 28,012 3 % - 21,355 - - 21,355 0 % Sweden 25,250 3 % - 35,059 - - 35,059 1 % South America Argentina/Chile 1 - 0 % - 264,403 - - 264,403 5 % Brazil 365,448 42 % 2,605,258 - - - 2,605,258 45 % Peru 170,512 20 % 110,406 1,027,875 - - 1,138,281 20 % Consolidated $ 861,332 100 % $ 3,497,235 $ 1,759,392 $ 249,969 $ 227,510 $ 5,734,106 100 % 1) Includes the Pascua-Lama project, which straddles the border of Argentina and Chile.

Description of Business and N_2

Description of Business and Nature of Operations - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020AgreementAsset
Description Of Business And Nature Of Operations [Line Items]
Number of long-term purchase agreements | Agreement	25
Number of early deposit long-term purchase agreements | Agreement	3
Number of mining companies engaged in precious metal purchase agreements | Agreement	19
Number of currently operating mining assets	24
Number of mining assets under various stages of development	7
Number of countries operating mining assets	12
Number of mining assets placed in care and maintenance	1
Peru And Mexico [Member]
Description Of Business And Nature Of Operations [Line Items]
Number of partner operations temporarily suspended due to COVID-19	6

Significant Accounting Polici_3

Significant Accounting Policies - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of significant accounting policies [line items]
Proportion of ownership interest in subsidiary	100.00%
Cash and cash equivalents maximum maturity period	3 months
Vesting period	3 years
Bottom of range [member]
Disclosure of significant accounting policies [line items]
Useful life measured as period of time, property, plant and equipment	3 years
Top of range [member]
Disclosure of significant accounting policies [line items]
Useful life measured as period of time, property, plant and equipment	10 years
Performance share units (PSUs) [member]
Disclosure of significant accounting policies [line items]
Vesting period	3 years
Forward contract [member]
Disclosure of significant accounting policies [line items]
Forward contracts	$ 0	$ 0
Wheaton Precious Metals International Ltd [member]
Disclosure of significant accounting policies [line items]
Proportion of ownership interest in subsidiary	100.00%
Wheaton Precious Metals (Cayman) Co [member]
Disclosure of significant accounting policies [line items]
Proportion of ownership interest in subsidiary	100.00%
Silver Wheaton Luxembourg S.a.r.l [member]
Disclosure of significant accounting policies [line items]
Proportion of ownership interest in subsidiary	100.00%

Key Sources of Estimation Unc_2

Key Sources of Estimation Uncertainty and Critical Accounting Judgments - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended	24 Months Ended
	Dec. 31, 2019	Dec. 31, 2016	Dec. 31, 2020
Disclosure of key sources of estimation uncertainty [line items]
Mineral stream interests	$ 5,734,106		$ 5,488,391
Impairment loss	$ 165,912
Sudbury [member] | Gold interests [member]
Disclosure of key sources of estimation uncertainty [line items]
Impairment loss		$ 120,000

Financial Instruments - Classif

Financial Instruments - Classification of Financial Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Financial assets
Cash and cash equivalents	$ 192,683	$ 103,986	$ 75,767
Trade receivables from provisional concentrate sales, net of fair value adjustment	5,429	4,350
Long-term investments - warrants held	3,637
Convertible note receivable	11,353	21,856
Long-term investments - common shares held	196,241	309,757	$ 164,753
Class Action Settlement Recoverable		41,500
Total financial assets	410,610	484,668
Financial liabilities
Accounts payable and accrued liabilities	13,023	11,794
Bank debt	195,000	874,500
Pension liability	1,670	810
Total financial liabilities	209,693	928,604
Financial assets at fair value through net earnings, category [member]
Financial assets
Cash and cash equivalents	192,683	103,986
Trade receivables from provisional concentrate sales, net of fair value adjustment	5,429	4,350
Long-term investments - warrants held	3,637	0
Convertible note receivable	11,353	21,856
Financial assets at fair value through other comprehensive income, category [member]
Financial assets
Long-term investments - common shares held	196,241	309,757
Financial assets at amortized cost, category [member]
Financial assets
Non-revolving term loan	813	431
Other accounts receivable	454	2,788
Class Action Settlement Recoverable	0	41,500
Financial liabilities at amortized cost, category [member]
Financial liabilities
Accounts payable and accrued liabilities	13,023	11,794
Bank debt	195,000	874,500
Pension liability	1,670	810
Class action settlement	$ 0	$ 41,500

Financial Instruments - Maximum

Financial Instruments - Maximum Exposure to Credit Risk Related to Financial Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about financial instruments [line items]
Cash and cash equivalents	$ 192,683	$ 103,986	$ 75,767
Trade receivables from provisional concentrate sales, net of fair value adjustment	5,429	4,350
Convertible note receivable	11,353	21,856
Class Action Settlement Recoverable		41,500
Maximum exposure to credit risk [member]
Disclosure of detailed information about financial instruments [line items]
Cash and cash equivalents	192,683	103,986
Trade receivables from provisional concentrate sales, net of fair value adjustment	5,429	4,350
Other accounts receivables	454	2,788
Non-revolving term loan	813	431
Convertible note receivable	11,353	21,856
Class Action Settlement Recoverable		41,500
Maximum exposure to credit risk related to financial assets	$ 210,732	$ 174,911

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about financial instruments [line items]
Cash and cash equivalents	$ 192,683,000	$ 103,986,000	$ 75,767,000
Working capital	171,000,000	90,000,000
Long-term investments-equity investments held	$ 196,241,000	309,757,000	$ 164,753,000
Change in interest rate, percentage	1.00%
Increased/decreased in other comprehensive income on assumption	$ 20,000,000	$ 31,000,000
Interest rate risk [member]
Disclosure of detailed information about financial instruments [line items]
Weighted average effective interest rate paid on its outstanding borrowings, percentage	2.03%	4.07%
Change in interest rate, percentage	1.00%
Impacted in interest expense due to fluctuation in interest rates	$ 6,000,000	$ 11,000,000
Minto derivative liability [member]
Disclosure of detailed information about financial instruments [line items]
Minimum market price of copper before Minto top up payment is required	2.50	2.50
Fair value of Minto derivative liability	0	0
Financial assets at fair value through other comprehensive income, category [member]
Disclosure of detailed information about financial instruments [line items]
Long-term investments-equity investments held	$ 196,241,000	$ 309,757,000
Kutcho [member]
Disclosure of detailed information about financial instruments [line items]
Interest rate	29.00%
Volatility rate	30.00%
Non convertible debt interest rate, fluctuation	1.00%
Convertible debt volatility rate, fluctuation	5.00%

Financial Instruments - Timing

Financial Instruments - Timing Associated with Remaining Contractual Payments Relating to Financial Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Non-derivative financial liabilities
Bank debt	$ 195,000	$ 874,500
Accounts payable and accrued liabilities	13,023	$ 11,794
Non-Derivative Financial Instrument [Member]
Non-derivative financial liabilities
Bank debt	195,000
Interest on bank debt	11,655
Accounts payable and accrued liabilities	13,023
Performance share units	29,081
Pension liability	1,670
Lease liability	4,657
Financial liabilities and contractual commitments, undiscounted cash flows	255,086
Non-Derivative Financial Instrument [Member] | 2021 [member]
Non-derivative financial liabilities
Interest on bank debt	2,311
Accounts payable and accrued liabilities	13,023
Performance share units	17,297
Pension liability	1,670
Lease liability	1,053
Financial liabilities and contractual commitments, undiscounted cash flows	35,354
Non-Derivative Financial Instrument [Member] | 2022-2024 [member]
Non-derivative financial liabilities
Interest on bank debt	8,722
Performance share units	11,784
Lease liability	3,204
Financial liabilities and contractual commitments, undiscounted cash flows	23,710
Non-Derivative Financial Instrument [Member] | 2025 - 2026 [member]
Non-derivative financial liabilities
Bank debt	195,000
Interest on bank debt	622
Lease liability	400
Financial liabilities and contractual commitments, undiscounted cash flows	196,022
Non-Derivative Financial Instrument [Member] | 2026 [member]
Non-derivative financial liabilities
Bank debt
Interest on bank debt
Accounts payable and accrued liabilities
Performance share units
Pension liability
Lease liability
Financial liabilities and contractual commitments, undiscounted cash flows

Financial Instruments - Summary

Financial Instruments - Summary of Carrying Amounts of Canadian Dollar Denominated Monetary Assets and Monetary Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Monetary assets
Cash and cash equivalents	$ 192,683	$ 103,986	$ 75,767
Accounts receivable	5,883	7,138
Long-term investments - common shares held	196,241	309,757	$ 164,753
Long-term investments - warrants held	3,637
Convertible note receivable	11,353	21,856
Other long-term assets	13,242	15,448
Monetary liabilities
Accounts payable and accrued liabilities	13,023	11,794
Lease Liability	3,637	4,252
Pension liability	1,670	810
Currency risk [member]
Monetary assets
Cash and cash equivalents	5,041	4,148
Accounts receivable	71	2,519
Long-term investments - common shares held	195,816	309,757
Long-term investments - warrants held	3,637
Convertible note receivable	11,353	11,837
Non-revolving term loan	813	431
Other long-term assets	3,519	3,450
Total Canadian dollar denominated monetary assets	220,250	332,142
Monetary liabilities
Accounts payable and accrued liabilities	8,011	6,059
Performance share units	23,405	15,423
Lease Liability	2,403	2,748
Pension liability	1,670	810
Total Canadian dollar denominated monetary liabilities	$ 35,489	$ 25,040

Financial Instruments - Summa_2

Financial Instruments - Summary of Sensitivity to 10% Increase or Decrease in Canadian Dollar Relative to United States Dollar (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of sensitivity to ten percentage increase or decrease in exchange rate [abstract]
Increase (decrease) in net earnings	$ (1,105)	$ (265)
Increase (decrease) in other comprehensive income	19,582	30,976
Increase (decrease) in total comprehensive income	18,477	30,711
Increase (decrease) in net earnings	1,105	265
Increase (decrease) in other comprehensive income	(19,582)	(30,976)
Increase (decrease) in total comprehensive income	$ (18,477)	$ (30,711)

Financial Instruments - Summa_3

Financial Instruments - Summary of Financial Assets and Liabilities Measured at Fair Value by Level within Fair Value Hierarchy (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of fair value measurements of assets and liabilities [line items]
Cash and cash equivalents	$ 192,683	$ 103,986	$ 75,767
Trade receivables from provisional concentrate sales, net of fair value adjustment	5,429	4,350
Long-term investments - common shares held	196,241	309,757	$ 164,753
Long-term investments - warrants held	3,637
Convertible notes receivable	11,353	21,856
Total net financial assets measured at fair value	409,343	439,949
Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of fair value measurements of assets and liabilities [line items]
Long-term investments - common shares held	196,241	309,757
Level 1 [member]
Disclosure of fair value measurements of assets and liabilities [line items]
Cash and cash equivalents	192,683	103,986
Total net financial assets measured at fair value	388,924	413,743
Level 1 [member] | Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of fair value measurements of assets and liabilities [line items]
Long-term investments - common shares held	196,241	309,757
Level 2 [member]
Disclosure of fair value measurements of assets and liabilities [line items]
Trade receivables from provisional concentrate sales, net of fair value adjustment	5,429	4,350
Long-term investments - warrants held	3,637
Total net financial assets measured at fair value	9,066	4,350
Level 3 [member]
Disclosure of fair value measurements of assets and liabilities [line items]
Convertible notes receivable	11,353	21,856
Total net financial assets measured at fair value	$ 11,353	$ 21,856

Financial Instruments - Summa_4

Financial Instruments - Summary of Sensitivity Analysis of Fair Value Measurement to Changes in Unobservable Inputs (Detail) - Kutcho convertible note [member] $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)
Interest rate, measurement input [member]
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs [line items]
Increase In Fair Value Measurement Due To Reasonably Possible Increase In Unobservable Input	$ (371)
Decrease In Fair Value Measurement Due To Reasonably Possible Increase In Unobservable Input	386
Volatility Measurement Input [Member]
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs [line items]
Increase In Fair Value Measurement Due To Reasonably Possible Increase In Unobservable Input	243
Decrease In Fair Value Measurement Due To Reasonably Possible Increase In Unobservable Input	$ (199)

Revenue - Summary of Revenue (D

Revenue - Summary of Revenue (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Revenue [abstract]
Gold credit sales	$ 652,827	$ 535,766
Concentrate sales		5,279
Revenue from sale of gold	652,827	541,045
Silver credit sales	320,192	225,316
Concentrate sales	79,433	63,085
Revenue from sale of silver	399,625	288,401
Palladium credit sales	43,772	31,886
Total sales revenue	$ 1,096,224	$ 861,332
Gold
Gold credit sales	60.00%	62.00%
Concentrate sales	0.00%	1.00%
Revenue from sale	60.00%	63.00%
Silver
Silver credit sales	29.00%	26.00%
Concentrate sales	7.00%	7.00%
Revenue from sale	36.00%	33.00%
Palladium
Palladium credit sales	4.00%	4.00%
Total sales revenue	100.00%	100.00%

Revenue - Additional Informatio

Revenue - Additional Information (Detail) - Contract	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of revenue [line items]
Number of forward contracts outstanding	0	0
Customer A [member]
Disclosure of revenue [line items]
Risk Revenue	33.00%	33.00%
Customer B [member]
Disclosure of revenue [line items]
Risk Revenue	32.00%	25.00%

General and Administrative - Su

General and Administrative - Summary of General and Administrative Expense (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
Salaries and benefits
Salaries and benefits, excluding PSUs		$ 16,733	$ 13,840
PSUs	[1]	21,520	17,174
Total salaries and benefits		38,253	31,014
Depreciation		1,889	1,903
Donations		5,792	2,946
Professional fees		3,590	2,496
Other		10,742	10,457
General and administrative before equity settled stock based compensation		60,266	48,816
Total equity settled stock based compensation	[2]	5,432	5,691
Total general and administrative		65,698	54,507
Employee stock options [member]
Salaries and benefits
Total equity settled stock based compensation		2,165	2,474
Restricted stock units [member]
Salaries and benefits
Total equity settled stock based compensation		$ 3,267	$ 3,217
[1]	The PSU accrual related to the anticipated fair value of the PSUs issued uses a weighted average performance factor of 187% during the year ended December 31, 2020 as compared to 186% during the comparable period of 2019.
[2]	Equity settled stock based compensation is a non-cash expense.

General and Administrative - _2

General and Administrative - Summary of General and Administrative Expense (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Significant non cash charges [abstract]
Average performance factor used to calculate the accrual related to the anticipated fair value of the PSUs issue	187.00%	186.00%

Other (Income) Expense - Summar

Other (Income) Expense - Summary of Other (Income) Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of other operating income [line items]
Interest income	$ (229)	$ (816)
Foreign exchange loss	152	1,028
Gain on disposal of mineral royalty interest		(2,929)
(Gain) loss on fair value adjustment of share purchase warrants held	(338)	16
(Gain) loss on fair value adjustment of convertible notes receivable	(1,899)	1,043
Other	144	1,443
Total other (income) expense	$ (2,170)	(274)
Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of other operating income [line items]
Dividends received from equity investments designated as FVTOCI relating to investments		$ (59)

Accounts Receivable - Summary o

Accounts Receivable - Summary of Accounts Receivable (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Trade and other receivables [abstract]
Trade receivables from provisional concentrate sales, net of fair value adjustment	$ 5,429	$ 4,350
Other accounts receivable	454	2,788
Total accounts receivable	$ 5,883	$ 7,138

Mineral Stream Interests - Sche

Mineral Stream Interests - Schedule of Mineral Stream Interests (Detail) - USD ($) $ in Thousands	12 Months Ended		24 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2016
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	$ 5,734,106
Ending balance	5,488,391	$ 5,734,106
Depletion	(243,889)	(256,826)
Impairment		(165,912)
Gold interests [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	3,497,235
Ending balance	3,349,967	3,497,235
Depletion	(147,268)	(158,816)
Gold interests [member] | Sudbury [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	344,043
Ending balance	321,016	344,043
Impairment			$ (120,000)
Gold interests [member] | Salobo [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	2,605,257
Ending balance	2,509,344	2,605,257
Gold interests [member] | Constancia [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	110,406
Ending balance	105,569	110,406
Gold interests [member] | San Dimas [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	194,367
Ending balance	182,202	194,367
Gold interests [member] | Stillwater [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	229,994
Ending balance	224,310	229,994
Gold interests [member] | Other gold interests [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	13,168
Ending balance	7,526	13,168
Gold interests [member] | Cost [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	4,681,811	4,681,816
Additions (Reductions)		(5)
Ending balance	4,681,811	4,681,811
Gold interests [member] | Cost [member] | Sudbury [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	623,864	623,864
Ending balance	623,864	623,864
Gold interests [member] | Cost [member] | Salobo [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	3,059,876	3,059,876
Ending balance	3,059,876	3,059,876
Gold interests [member] | Cost [member] | Constancia [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	136,058	136,058
Ending balance	136,058	136,058
Gold interests [member] | Cost [member] | San Dimas [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	220,429	220,429
Ending balance	220,429	220,429
Gold interests [member] | Cost [member] | Stillwater [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	239,352	239,357
Additions (Reductions)		(5)
Ending balance	239,352	239,352
Gold interests [member] | Cost [member] | Other gold interests [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	402,232	402,232
Ending balance	402,232	402,232
Gold interests [member] | Accumulated Depletion & Impairment [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	(1,184,576)	(1,025,760)
Ending balance	(1,331,844)	(1,184,576)
Depletion	(147,268)	(158,816)
Gold interests [member] | Accumulated Depletion & Impairment [member] | Sudbury [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	(279,821)	(257,401)
Ending balance	(302,848)	(279,821)
Depletion	(23,027)	(22,420)
Gold interests [member] | Accumulated Depletion & Impairment [member] | Salobo [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	(454,619)	(353,816)
Ending balance	(550,532)	(454,619)
Depletion	(95,913)	(100,803)
Gold interests [member] | Accumulated Depletion & Impairment [member] | Constancia [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	(25,652)	(18,511)
Ending balance	(30,489)	(25,652)
Depletion	(4,837)	(7,141)
Gold interests [member] | Accumulated Depletion & Impairment [member] | San Dimas [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	(26,062)	(12,234)
Ending balance	(38,227)	(26,062)
Depletion	(12,165)	(13,828)
Gold interests [member] | Accumulated Depletion & Impairment [member] | Stillwater [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	(9,358)	(2,925)
Ending balance	(15,042)	(9,358)
Depletion	(5,684)	(6,433)
Gold interests [member] | Accumulated Depletion & Impairment [member] | Other gold interests [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	(389,064)	(380,873)
Ending balance	(394,706)	(389,064)
Depletion	(5,642)	(8,191)
Silver interests [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	1,759,392
Ending balance	1,669,525	1,759,392
Depletion	(88,041)	(88,291)
Silver interests [member] | Penasquito [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	374,702
Ending balance	350,572	374,702
Silver interests [member] | Antamina [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	668,810
Ending balance	626,934	668,810
Silver interests [member] | Constancia [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	228,187
Ending balance	217,044	228,187
Silver interests [member] | Other silver interests [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	487,693
Ending balance	474,975	487,693
Silver interests [member] | Cost [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	3,010,971	3,010,956
Additions (Reductions)	(1,826)	15
Ending balance	3,009,145	3,010,971
Silver interests [member] | Cost [member] | Penasquito [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	524,626	524,626
Ending balance	524,626	524,626
Silver interests [member] | Cost [member] | Antamina [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	900,343	900,343
Ending balance	900,343	900,343
Silver interests [member] | Cost [member] | Constancia [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	302,948	302,948
Ending balance	302,948	302,948
Silver interests [member] | Cost [member] | Other silver interests [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	1,283,054	1,283,039
Additions (Reductions)	(1,826)	15
Ending balance	1,281,228	1,283,054
Silver interests [member] | Accumulated Depletion & Impairment [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	(1,251,579)	(1,163,288)
Ending balance	(1,339,620)	(1,251,579)
Depletion	(88,041)	(88,291)
Silver interests [member] | Accumulated Depletion & Impairment [member] | Penasquito [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	(149,924)	(135,904)
Ending balance	(174,054)	(149,924)
Depletion	(24,130)	(14,020)
Silver interests [member] | Accumulated Depletion & Impairment [member] | Antamina [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	(231,533)	(190,266)
Ending balance	(273,409)	(231,533)
Depletion	(41,876)	(41,267)
Silver interests [member] | Accumulated Depletion & Impairment [member] | Constancia [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	(74,761)	(56,717)
Ending balance	(85,904)	(74,761)
Depletion	(11,143)	(18,044)
Silver interests [member] | Accumulated Depletion & Impairment [member] | Other silver interests [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	(795,361)	(780,401)
Ending balance	(806,253)	(795,361)
Depletion	(10,892)	(14,960)
Palladium interest [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	249,969
Ending balance	241,389	249,969
Palladium interest [member] | Stillwater [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	249,969
Ending balance	241,389	249,969
Palladium interest [member] | Cost [member] | Stillwater [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	263,721	263,726
Additions (Reductions)		(5)
Ending balance	263,721	263,721
Palladium interest [member] | Accumulated Depletion & Impairment [member] | Stillwater [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	(13,752)	(4,033)
Ending balance	(22,332)	(13,752)
Depletion	(8,580)	(9,719)
Cobalt Interests [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	227,510
Ending balance	227,510	227,510
Cobalt Interests [member] | Cost [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	393,422	393,422
Ending balance	393,422	393,422
Cobalt Interests [member] | Accumulated Depletion & Impairment [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	(165,912)
Ending balance	(165,912)	(165,912)
Impairment		(165,912)
Mineral Stream Interests [member]
Disclosure Of Mineral Stream Interests [line items]
Depletion	(243,889)	(256,826)
Impairment		(165,912)
Mineral Stream Interests [member] | Cost [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	8,349,925	8,349,920
Additions (Reductions)	(1,826)	5
Ending balance	8,348,099	8,349,925
Mineral Stream Interests [member] | Accumulated Depletion & Impairment [member]
Disclosure Of Mineral Stream Interests [line items]
Beginning balance	(2,615,819)	(2,193,081)
Ending balance	(2,859,708)	(2,615,819)
Depletion	$ (243,889)	(256,826)
Impairment		$ (165,912)

Mineral Stream Interests - Sc_2

Mineral Stream Interests - Schedule of Mineral Stream Interests (Parenthetical) (Detail) - Accumulated impairment [member] - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Gold interests [member] | Sudbury [member]
Disclosure Of Mineral Stream Interests [line items]
Cumulative impairment charges	$ 120	$ 120
Gold interests [member] | 777 [member]
Disclosure Of Mineral Stream Interests [line items]
Cumulative impairment charges	151	151
Silver interests [member] | Keno Hill [member]
Disclosure Of Mineral Stream Interests [line items]
Cumulative impairment charges	11	11
Silver interests [member] | Pascua-Lama [member]
Disclosure Of Mineral Stream Interests [line items]
Cumulative impairment charges	338	338
Silver interests [member] | 777 [member]
Disclosure Of Mineral Stream Interests [line items]
Cumulative impairment charges	64	64
Cobalt Interests [member] | Voisey's Bay [member]
Disclosure Of Mineral Stream Interests [line items]
Cumulative impairment charges	$ 166	$ 166

Mineral Stream Interests - Clas

Mineral Stream Interests - Classification of Mining Interest (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Gold interests [member]
Disclosure Of Mineral Stream Interests [line items]
Depletable	$ 2,733,388	$ 2,774,694
Non-Depletable	616,579	722,541
Total	3,349,967	3,497,235
Silver interests [member]
Disclosure Of Mineral Stream Interests [line items]
Depletable	838,984	905,501
Non-Depletable	830,541	853,891
Total	1,669,525	1,759,392
Mineral Stream Interests [member]
Disclosure Of Mineral Stream Interests [line items]
Depletable	4,007,555	3,918,680
Non-Depletable	1,480,836	1,815,426
Total	5,488,391	5,734,106
Voisey's Bay [member] | Cobalt Interests [member]
Disclosure Of Mineral Stream Interests [line items]
Depletable	203,436
Non-Depletable	24,074	227,510
Total	227,510	227,510
Penasquito [member] | Silver interests [member]
Disclosure Of Mineral Stream Interests [line items]
Depletable	258,267	287,493
Non-Depletable	92,305	87,209
Total	350,572	374,702
Antamina [member] | Silver interests [member]
Disclosure Of Mineral Stream Interests [line items]
Depletable	279,859	322,148
Non-Depletable	347,075	346,662
Total	626,934	668,810
Constancia [member] | Silver interests [member]
Disclosure Of Mineral Stream Interests [line items]
Depletable	202,475	212,173
Non-Depletable	14,569	16,014
Total	217,044	228,187
Other silver interests [member] | Silver interests [member]
Disclosure Of Mineral Stream Interests [line items]
Depletable	98,383	83,687
Non-Depletable	376,592	404,006
Total	474,975	487,693
Sudbury [member] | Gold interests [member]
Disclosure Of Mineral Stream Interests [line items]
Depletable	269,834	290,841
Non-Depletable	51,182	53,202
Total	321,016	344,043
Salobo [member] | Gold interests [member]
Disclosure Of Mineral Stream Interests [line items]
Depletable	2,085,359	2,078,666
Non-Depletable	423,985	526,591
Total	2,509,344	2,605,257
Constancia [member] | Gold interests [member]
Disclosure Of Mineral Stream Interests [line items]
Depletable	97,539	101,263
Non-Depletable	8,030	9,143
Total	105,569	110,406
San Dimas [member] | Gold interests [member]
Disclosure Of Mineral Stream Interests [line items]
Depletable	73,514	87,593
Non-Depletable	108,688	106,774
Total	182,202	194,367
Stillwater [member] | Gold interests [member]
Disclosure Of Mineral Stream Interests [line items]
Depletable	199,616	203,163
Non-Depletable	24,694	26,831
Total	224,310	229,994
Stillwater [member] | Palladium interest [member]
Disclosure Of Mineral Stream Interests [line items]
Depletable	231,747	238,485
Non-Depletable	9,642	11,484
Total	241,389	249,969
Other gold interests [member] | Gold interests [member]
Disclosure Of Mineral Stream Interests [line items]
Depletable	7,526	13,168
Total	$ 7,526	$ 13,168

Mineral Stream Interests - Addi

Mineral Stream Interests - Additional Information (Detail) $ in Thousands		Dec. 11, 2020USD ($)oz	Dec. 31, 2020USD ($)ozMetal	Nov. 05, 2020USD ($)oz	Jun. 11, 2018
Disclosure Of Mineral Stream Interests [line items]
Percentage of metal production at the mine which WPM is entitled to after step down					21.20%
Upfront cash consideration to be paid	[1],[2]		$ 326,000
Marmato [member]
Disclosure Of Mineral Stream Interests [line items]
Revenue			0
Depletion			$ 0
Number of silver ounces delivered | Metal			0
Cozamin [member]
Disclosure Of Mineral Stream Interests [line items]
Revenue			$ 0
Depletion			$ 0
Number of silver ounces delivered | Metal			0
Silver [member] | Marmato [member]
Disclosure Of Mineral Stream Interests [line items]
Payable Production to be purchased			100.00%	100.00%
Percentage of metal production at the mine which WPM is entitled to after step down			50.00%	50.00%
Number of silver ounces delivered | oz				2,150,000
Per ounce cash payment as a percentage of the spot price of metal delivered after upfront deposit reduced to NIL				22.00%
Per ounce cash payment as a percentage of the per ounce price received related to metal delivered			18.00%
Silver [member] | Cozamin [member]
Disclosure Of Mineral Stream Interests [line items]
Payable Production to be purchased		50.00%	50.00%
Percentage of metal production at the mine which WPM is entitled to after step down		33.00%	33.00%
Number of silver ounces delivered | oz		10,000,000	10,000,000
Upfront cash consideration to be paid		$ 150,000
Per ounce cash payment as a percentage of the per ounce price received related to metal delivered		10.00%	10.00%
Gold [member] | Marmato [member]
Disclosure Of Mineral Stream Interests [line items]
Payable Production to be purchased			6.50%	6.50%
Percentage of metal production at the mine which WPM is entitled to after step down			3.25%	3.25%
Number of silver ounces delivered | oz				190,000
Per ounce cash payment as a percentage of the per ounce price received related to metal delivered			18.00%
Gold [member] | Cozamin [member]
Disclosure Of Mineral Stream Interests [line items]
Payable Production to be purchased			0.00%
Gold And Silver [Member] | Marmato [member]
Disclosure Of Mineral Stream Interests [line items]
Per ounce cash payment as a percentage of the spot price of metal delivered after upfront deposit reduced to NIL				22.00%
Cash consideration to be paid once mining contract extended				$ 34,000
Upfront cash consideration to be paid				110,000
Cash consideration to be paid six months thereafter				$ 4,000
[1]	Expressed in thousands of United States dollars; excludes closing costs and capitalized interest, where applicable.
[2]	Please refer to Note 28 for details of when the remaining upfront consideration to be paid becomes due.

Impairment of Mineral Stream _3

Impairment of Mineral Stream Interests - Schedule of Impairment of Mineral Stream Interests (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2019
Disclosure of Impairment Loss and Reversal of Impairment Loss [Line Items]
Total impairment charges		$ 165,912
Voisey's Bay [member]
Disclosure of Impairment Loss and Reversal of Impairment Loss [Line Items]
Total impairment charges	$ 166,000	$ 165,912

Impairment of Mineral Stream _4

Impairment of Mineral Stream Interests - Additional Information (Detail) $ / shares in Units, $ in Thousands, lb in Millions	Jun. 30, 2019USD ($)$ / shares	Dec. 31, 2019USD ($)	Dec. 31, 2020USD ($)	[1]	Jun. 18, 2019	Jun. 11, 2018USD ($)lb
Disclosure of Impairment Loss and Reversal of Impairment Loss [Line Items]
Impairment charge		$ 165,912
Percentage of metal production at the mine which WPM is entitled to after step down						21.20%
Upfront cash consideration paid			$ 32,500			$ 390,000
Cobalt Twenty Seven [member] | Pala Investments Limited [member]
Disclosure of Impairment Loss and Reversal of Impairment Loss [Line Items]
Acquisition of issued and outstanding common shares of comparator company					100.00%
Voisey's Bay [member]
Disclosure of Impairment Loss and Reversal of Impairment Loss [Line Items]
Precious metal purchase agreement carrying value	$ 393,000
Recoverable amount	227,000
Impairment charge	$ 166,000	$ 165,912
Discount rate	7.00%
Market price of cobalt | $ / shares	$ 14.83
Cobalt [member] | Voisey's Bay [member]
Disclosure of Impairment Loss and Reversal of Impairment Loss [Line Items]
Percentage of production to be acquired						42.40%
Amount of cobalt to be delivered | lb						31
[1]	Expressed in thousands of United States dollars; excludes closing costs and capitalized interest, where applicable.

Early Deposit Mineral Stream _3

Early Deposit Mineral Stream Interests - Summary of Early Deposit Mineral Stream Interests (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020		Jun. 11, 2018
Disclosure Of Mineral Stream Interests [line items]
Upfront Consideration Paid to Date		$ 32,500	[1]	$ 390,000
Upfront Consideration to be Paid	[1],[2]	326,000
Total Upfront Consideration	[1]	$ 358,500
Toroparu [member]
Disclosure Of Mineral Stream Interests [line items]
Name of mine owner		Gold X
Location of Mine		Guyana
Upfront Consideration Paid to Date	[1]	$ 15,500
Upfront Consideration to be Paid	[1],[2]	138,000
Total Upfront Consideration	[1]	$ 153,500
Gold		10.00%
Silver		50.00%
Term of Agreement		Life of Mine
Cotabambas [member]
Disclosure Of Mineral Stream Interests [line items]
Name of mine owner		Panoro
Location of Mine		Peru
Upfront Consideration Paid to Date	[1]	$ 10,000
Upfront Consideration to be Paid	[1],[2]	130,000
Total Upfront Consideration	[1]	$ 140,000
Gold	[3]	25.00%
Silver	[3]	100.00%
Term of Agreement		Life of Mine
Kutcho [member]
Disclosure Of Mineral Stream Interests [line items]
Name of mine owner		Kutcho
Location of Mine		Canada
Upfront Consideration Paid to Date	[1]	$ 7,000
Upfront Consideration to be Paid	[1],[2]	58,000
Total Upfront Consideration	[1]	$ 65,000
Gold	[4]	100.00%
Silver	[4]	100.00%
Term of Agreement		Life of Mine
[1]	Expressed in thousands of United States dollars; excludes closing costs and capitalized interest, where applicable.
[2]	Please refer to Note 28 for details of when the remaining upfront consideration to be paid becomes due.
[3]	Once 90 million silver equivalent ounces attributable to Wheaton have been produced, the attributable production to be purchased will decrease to 16.67% of gold production and 66.67% of silver production for the life of mine.
[4]	Once 51,000 ounces of gold and 5.6 million ounces of silver have been delivered to Wheaton, the stream will decrease to 66.67% of gold and silver production for the life of mine.

Early Deposit Mineral Stream _4

Early Deposit Mineral Stream Interests - Summary of Early Deposit Mineral Stream Interests (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2020oz
Cotabambas [member]
Disclosure Of Mineral Stream Interests [line items]
Percentage of silver production at the mine which WPM is entitled to after step down	66.67%
Percentage of gold production at the mine which WPM is entitled to after step down	16.67%
Kutcho [member]
Disclosure Of Mineral Stream Interests [line items]
Percentage of silver production at the mine which WPM is entitled to after step down	66.67%
Gold [member] | Kutcho [member]
Disclosure Of Mineral Stream Interests [line items]
Gold ounces to be delivered before entitlement step down takes effect	51,000
Silver [member] | Cotabambas [member]
Disclosure Of Mineral Stream Interests [line items]
Silver Equivalent ounces to be delivered before entitlement step down takes effect	90,000,000
Silver [member] | Kutcho [member]
Disclosure Of Mineral Stream Interests [line items]
Silver ounces to be delivered before entitlement step down takes effect	5,600,000

Mineral Royalty Interest - Addi

Mineral Royalty Interest - Additional Information (Detail) - USD ($)	Aug. 07, 2019	Aug. 07, 2014	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Royalty Arrangements [line items]
Gains on disposals of mineral royalty interest				$ 2,929,000
Metates Properties [member]
Disclosure Of Royalty Arrangements [line items]
Net smelter return royalty percentage	0.50%	1.50%	0.50%
Upfront cash payment for Royalty interest	$ 9,000,000	$ 9,000,000
Net smelter return royalty percentage which may be repurchased	1.00%
Total consideration owed by Mine Operator upon election of reacquisition of royalty interest	$ 9,000,000
Gains on disposals of mineral royalty interest				$ 3,000,000
Revenues recognized in royalty agreement			$ 0
Depletion in royalty agreement			$ 0

Convertible Notes Receivable -

Convertible Notes Receivable - Additional Information (Detail) $ / shares in Units, $ / shares in Units, $ in Thousands, $ in Millions	Nov. 27, 2019	Dec. 14, 2017USD ($)	Dec. 31, 2020USD ($)	Jul. 14, 2020$ / sharesshares	Jul. 13, 2020$ / shares	Dec. 31, 2019USD ($)	Dec. 24, 2019USD ($)	Dec. 14, 2017CAD ($)$ / shares
Convertible notes receivable [line items]
Amount advanced in exchange for convertible note receivable			$ 11,353			$ 21,856
Gold X Mining Corp [Member]
Convertible notes receivable [line items]
Amount advanced in exchange for convertible note receivable							$ 10,000
Coupon rate on convertible note receivable							10.00%
Convertible notes receivable face value							$ 20,000
Interest rate							10.00%
Number of common shares received | shares				4,467,317
Conversion price per share for outstanding interest | $ / shares				$ 3.20	$ 3.57
Convertible note receivable [member] | Kutcho [member]
Convertible notes receivable [line items]
Amount advanced in exchange for convertible note receivable		$ 16,000						$ 20
Coupon rate on convertible note receivable		10.00%						10.00%
Interest rate charged On deferred interest	15.00%
Convertible note original term to maturity		seven
Option to defer interest payment criteria		Kutcho elected to defer the first six interest payments, with all deferred payments being due no later than December 31, 2023
Conversion price per share | $ / shares								$ 0.8125
Prepayment cash penalty as a percentage of the outstanding loan amount if pre-paid on or after 36 months until 60 months		20.00%						20.00%
Loan amount outstanding period for covering 20% of prepayment penalty		after 36 months until 60 months
Prepayment cash penalty as a percentage of the outstanding loan amount if pre-paid on or after 60 months until maturity		15.00%						15.00%
Loan amount outstanding period for covering 15% of prepayment penalty		after 60 months until maturity

Convertible Notes Receivable _2

Convertible Notes Receivable - Schedule of Company's Convertible Note Receivable (Detail) - USD ($) $ in Thousands	Jul. 14, 2020	Dec. 31, 2020	Dec. 31, 2019
Convertible notes receivable [line items]
Beginning balance		$ 21,856	$ 12,899
Amount advanced			10,000
Value Converted into Shares		(12,402)
Fair value gain (loss) reflected in net earnings		1,899	(1,043)
Ending balance		11,353	21,856
Gold X
Convertible notes receivable [line items]
Beginning balance		10,019
Amount advanced			10,000
Value Converted into Shares	$ 12,000	(12,402)
Fair value gain (loss) reflected in net earnings		2,383	19
Ending balance			10,019
Convertible note receivable [member] | Kutcho [member]
Convertible notes receivable [line items]
Beginning balance		11,837	12,899
Fair value gain (loss) reflected in net earnings		(484)	(1,062)
Ending balance		$ 11,353	$ 11,837

Long-Term Equity Investments -

Long-Term Equity Investments - Summary of Common Shares Held (Detail) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Long term investments - common shares held [line items]
Fair value	$ 196,241	$ 309,757	$ 164,753
Cost of Addition	23,570	893
Proceeds of Disposition	(162,942)	(17,825)
Fair value adjustment gains (losses)	25,856	161,936
Realized gain (loss) on disposal	$ 60,814	$ (7,282)
Bear Creek [member]
Long term investments - common shares held [line items]
Shares owned	13,264	13,264
Percentage of outstanding shares owned	11.80%	12.84%
Fair value	$ 32,609	$ 27,983	10,112
Fair value adjustment gains (losses)	$ 4,626	$ 17,871
Sabina [member]
Long term investments - common shares held [line items]
Shares owned	11,700	11,700
Percentage of outstanding shares owned	3.59%	3.95%
Fair value	$ 30,233	$ 17,296	10,549
Fair value adjustment gains (losses)	$ 12,937	$ 6,747
First Majestic [member]
Long term investments - common shares held [line items]
Shares owned	7,155	20,240
Percentage of outstanding shares owned	3.23%	9.73%
Fair value	$ 95,984	$ 248,137	123,187
Proceeds of Disposition	(151,113)	(5,395)
Fair value adjustment gains (losses)	(1,040)	130,345
Realized gain (loss) on disposal	56,644	521
Other investments [member]
Long term investments - common shares held [line items]
Fair value	37,415	16,341	$ 20,905
Cost of Addition	23,570	893
Proceeds of Disposition	(11,829)	(12,430)
Fair value adjustment gains (losses)	9,333	6,973
Realized gain (loss) on disposal	$ 4,170	$ (7,803)

Long-Term Equity Investments _2

Long-Term Equity Investments - Summary of Common Shares Held (Parenthetical) (Detail) - shares	12 Months Ended
	Dec. 31, 2019	Jul. 14, 2020
First Majestic [member]
Long term investments - common shares held [line items]
Maximum desired ownership percentage	10.00%
Gold X
Long term investments - common shares held [line items]
Number of common shares received		4,467,317

Long-Term Equity Investments _3

Long-Term Equity Investments - Summary of Warrants Held (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Long Term Investments - warrants held [line items]
Fair Value Adjustment Gains (Losses)	$ (338)	$ 16
Fair Value at Dec 31, 2020	3,637
Other Long Term Warrants Held Member [Member]
Long Term Investments - warrants held [line items]
Cost of Addition	3,299	16
Fair Value Adjustment Gains (Losses)	338	$ (16)
Fair Value at Dec 31, 2020	$ 3,637

Long-Term Equity Investments _4

Long-Term Equity Investments - Summary of Warrants Held (Parenthetical) (Detail) - Other Long Term Warrants Held [Member] shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)shares
Long term investments - common shares held [line items]
Number of share purchase warrants received | shares	2
Additions to warrants held other than the acquisition through a business combination. | $	$ 2

Property Plant and Equipment -

Property Plant and Equipment - Summary of Property Plant and Equipment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Statement [Line Items]
Balance - January 1,2019	$ 7,311
Balance - December 31, 2019	6,289	$ 7,311
Leasehold improvements [member]
Statement [Line Items]
Balance - January 1,2019	1,862
Balance - December 31, 2019	1,476	1,862
Right-of-use assets [member]
Statement [Line Items]
Balance - January 1,2019	4,034
Balance - December 31, 2019	3,349	4,034
Other
Statement [Line Items]
Balance - January 1,2019	1,415
Balance - December 31, 2019	1,464	1,415
At Cost [member]
Statement [Line Items]
Balance - January 1,2019	12,954	7,696
Additions upon adoption of IFRS 16		4,679
Additions	486	615
Disposals	(134)	(36)
Balance - December 31, 2019	13,306	12,954
At Cost [member] | Leasehold improvements [member]
Statement [Line Items]
Balance - January 1,2019	4,380	4,378
Additions	2	9
Disposals		(7)
Balance - December 31, 2019	4,382	4,380
At Cost [member] | Right-of-use assets [member]
Statement [Line Items]
Balance - January 1,2019	4,738
Additions upon adoption of IFRS 16		4,679
Additions	55	59
Balance - December 31, 2019	4,793	4,738
At Cost [member] | Other
Statement [Line Items]
Balance - January 1,2019	3,836	3,318
Additions	429	547
Disposals	(134)	(29)
Balance - December 31, 2019	4,131	3,836
Accumulated depreciation and amortisation [member]
Statement [Line Items]
Balance - January 1,2019	(5,643)	(4,070)
Disposals	134	36
Depreciation	(1,508)	(1,609)
Balance - December 31, 2019	(7,017)	(5,643)
Accumulated depreciation and amortisation [member] | Leasehold improvements [member]
Statement [Line Items]
Balance - January 1,2019	(2,518)	(2,024)
Disposals		7
Depreciation	(388)	(501)
Balance - December 31, 2019	(2,906)	(2,518)
Accumulated depreciation and amortisation [member] | Right-of-use assets [member]
Statement [Line Items]
Balance - January 1,2019	(704)
Depreciation	(740)	(704)
Balance - December 31, 2019	(1,444)	(704)
Accumulated depreciation and amortisation [member] | Other
Statement [Line Items]
Balance - January 1,2019	(2,421)	(2,046)
Disposals	134	29
Depreciation	(380)	(404)
Balance - December 31, 2019	$ (2,667)	$ (2,421)

Credit Facilities - Bank Debt (

Credit Facilities - Bank Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Bank Debt Facilities
Gross bank debt outstanding	$ 195,000	$ 874,500
Revolving Term Loan [member]
Disclosure Of Bank Debt Facilities
Current portion	0
Long-term portion	195,000	874,500
Gross bank debt outstanding	$ 195,000	$ 874,500

Credit Facilities - Bank Debt_2

Credit Facilities - Bank Debt (Parenthetical) (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Bank Debt Facilities
Unamortized debt issue	$ 5,202	$ 5,154
Revolving Term Loan [member]
Disclosure Of Bank Debt Facilities
Unamortized debt issue	$ 5,000

Credit Facilities - Additional

Credit Facilities - Additional Information (Detail) - Revolving Term Loan [member] - USD ($) $ in Millions	Feb. 27, 2019	Dec. 31, 2020
Disclosure Of Bank Debt Facilities
Maximum available credit under revolving term loan		$ 2,000
Information about covenants imposed by lenders on credit facilities		The Company’s Revolving Facility has financial covenants which require the Company to maintain: (i) a net debt to tangible net worth ratio of less than or equal to 0.75:1; and (ii) an interest coverage ratio of greater than or equal to 3.00:1. Only cash interest expenses are included for the purposes of calculating the interest coverage ratio. The Company is in compliance with these debt covenants as at December 31, 2020.
Maximum net debt to tangible net worth ratio		75.00%
Minimum interest coverage ratio		3
Extension of revolving term loan [member]
Disclosure Of Bank Debt Facilities
Credit facility extension fees	$ 1
Bottom of range [member]
Disclosure Of Bank Debt Facilities
Stand-by fees rate charged for undrawn facilities		0.20%
Bottom of range [member] | LIBOR [member]
Disclosure Of Bank Debt Facilities
Basis spread		1.00%
Bottom of range [member] | Bank of Nova Scotia Base Rate [member]
Disclosure Of Bank Debt Facilities
Basis spread		0.00%
Top of range [member]
Disclosure Of Bank Debt Facilities
Stand-by fees rate charged for undrawn facilities		0.41%
Top of range [member] | LIBOR [member]
Disclosure Of Bank Debt Facilities
Basis spread		2.05%
Top of range [member] | Bank of Nova Scotia Base Rate [member]
Disclosure Of Bank Debt Facilities
Basis spread		1.05%

Credit Facilities - Summary of

Credit Facilities - Summary of Lease Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Presentation of leases for lessee [abstract]
Current portion	$ 773	$ 724
Long-term portion	2,864	3,528
Total lease liabilities	$ 3,637	$ 4,252

Credit Facilities - Summary o_2

Credit Facilities - Summary of Lease Maturities (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure of Lease liabilities [Line Items]
Total lease liabilities	$ 3,637	$ 4,252
Not later than 1 year [member]
Disclosure of Lease liabilities [Line Items]
Total lease liabilities	773
Later than 1 year and not later than 5 years
Disclosure of Lease liabilities [Line Items]
Total lease liabilities	2,864
Later than 5 years [member]
Disclosure of Lease liabilities [Line Items]
Total lease liabilities	$ 0

Credit Facilities - Summary o_3

Credit Facilities - Summary of Company's Finance Costs (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of Finance Cost [abstract]
Average principal outstanding during period	$ 601,112	$ 1,099,846
Average effective interest rate during period	2.03%	4.07%
Total interest expense incurred during period	$ 12,226	$ 44,767
Costs related to undrawn credit facilities	4,349	3,834
Interest expense—lease liabilities	140	175
Letters of guarantee		(46)
Total finance costs	$ 16,715	$ 48,730

Issued Capital - Summary of Cap

Issued Capital - Summary of Capital Issued (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure of Capital and Reserve [line items]
Issued capital	$ 3,646,291	$ 3,599,203
Issued Capital [member]
Disclosure of Capital and Reserve [line items]
Issued capital	$ 3,646,291	$ 3,599,203

Issued Capital - Summary of C_2

Issued Capital - Summary of Capital Issued (Parenthetical) (Detail) - shares	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Capital and Reserve [line items]
Common shares outstanding	449,458,394	447,771,433	444,336,361
Issued Capital [member]
Disclosure of Capital and Reserve [line items]
Common shares issued	449,458,394	447,771,433
Common shares outstanding	449,458,394	447,771,433

Issued Capital - Additional Inf

Issued Capital - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	Apr. 16, 2020	Dec. 31, 2020
Statement [Line Items]
Par value per common share		$ 0
Preference shares outstanding		0
At The Market Equity Program [Member]
Statement [Line Items]
Maximum value of common shares that can be issued under the at-the-market equity program	$ 300

Issued Capital - Summary of Com

Issued Capital - Summary of Common Shares Issued and Outstanding (Detail)	12 Months Ended
	Dec. 31, 2020$ / sharesshares	Dec. 31, 2020$ / sharesshares	Dec. 31, 2019$ / sharesshares	Dec. 31, 2019$ / sharesshares
Disclosure of classes of share capital [abstract]
Balance, shares at beginning of period	447,771,433	447,771,433	444,336,361	444,336,361
Share purchase options exercised | $ / shares		$ 25.70		$ 25.79
Restricted share units released | $ / shares		$ 0		$ 0
Dividend reinvestment plan | $ / shares	$ 37.87		$ 24.31
Share purchase options exercised	1,056,363	1,056,363	2,039,735	2,039,735
Restricted share units released	128,405	128,405	133,670	133,670
Dividend reinvestment plan	502,193	502,193	1,261,667	1,261,667
Balance, shares at end of period	449,458,394	449,458,394	447,771,433	447,771,433

Issued Capital - Summary of C_3

Issued Capital - Summary of Common Shares Issued and Outstanding (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of classes of share capital [abstract]
Discount applied to average share price in determining number of shares to be issued under DRIP	1.00%	3.00%

Issued Capital - Schedule of Di

Issued Capital - Schedule of Dividends Declared (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended		120 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020
Disclosure of Dividends [line items]
Dividends declared per share	$ 0.42	$ 0.36
Average number of shares eligible for dividend	448,777	446,267
Total dividends paid	$ 167,211	$ 129,987	$ 1,267,000
Cash percentage	89.00%	81.00%
DRIP percentage	11.00%	19.00%
Total dividends paid percentage	100.00%	100.00%
Shares issued under the DRIP	502	1,262
Retained Earnings [member]
Disclosure of Dividends [line items]
Total dividends paid	$ 188,486	$ 160,656
Dividends Paid in Cash [member]
Disclosure of Dividends [line items]
Total dividends paid	167,211	129,986
Dividends Paid in DRIP [member]
Disclosure of Dividends [line items]
Total dividends paid	$ 21,275	$ 30,670

Issued Capital - Schedule of _2

Issued Capital - Schedule of Dividends Declared (Parenthetical) (Detail) - USD ($) $ in Thousands	12 Months Ended		120 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020
Disclosure of dividend [abstract]
Dividend declared	$ 167,211	$ 129,987	$ 1,267,000

Reserves - Summary of Reserves

Reserves - Summary of Reserves (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Reserves
Share purchase warrants	$ 83,077	$ 83,077
Share purchase options	21,855	24,010
Restricted share units	6,815	6,405
Long-term investment revaluation reserve, net of tax	15,135	47,209
Total reserves	$ 126,882	$ 160,701

Reserves - Summary of Share Pur

Reserves - Summary of Share Purchase Warrants (Detail) $ / shares in Units, $ in Thousands	Dec. 31, 2020USD ($)Exchange_Ratio$ / sharesshares	Dec. 31, 2019USD ($)
Disclosure of reserves within equity [abstract]
Number of warrants | shares	10,000,000
Exercise Price of Outstanding Share Purchase Warrants, Ending balance | $ / shares	$ 43.75
Exchange Ratio | Exchange_Ratio	1
Share Purchase Warrants Reserve | $	$ 83,077	$ 83,077

Reserves - Additional Informati

Reserves - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)shares	Dec. 31, 2020$ / shares	Dec. 31, 2019USD ($)shares	Dec. 31, 2019$ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items]
Warrant holders right to purchase common shares	Each warrant entitles the holder the right to purchase one of the Company’s common shares
Stock Options [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Maximum term of share purchase option	ten years
Description of Typical Term Of options issued	five years
Vesting period	two years
Trailing period for expected volatility	30 months
Description of share option grants	The Company expenses the fair value of share purchase options that are expected to vest on a straight-line basis over the vesting period using the Black-Scholes option pricing model to estimate the fair value for each option at the date of grant.
Weighted average share price at the time of exercise		$ 54.13		$ 34.83
RSU [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting period	Two years
Number of RSU issued | shares	132,960		132,620
Weighted average fair value per RSU granted		$ 33.73		$ 32.89
Fair value of RSUs issued during the year | $	$ 3		$ 3

Reserves - Summary of Fair Valu

Reserves - Summary of Fair Value of Share Purchase Options (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)yrshares	Dec. 31, 2020$ / shares	Dec. 31, 2019USD ($)yrshares	Dec. 31, 2019$ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items]
Grant date share price and exercise price | $ / shares		$ 33.47		$ 32.88
Weighted average fair value per option granted | $ / shares		$ 5.57		$ 6.10
Total fair value of options issued | $	$ 2,000		$ 3,000
Black-Scholes Weighted Average Assumptions [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expected dividend yield	1.78%		1.49%
Expected volatility	30.00%		31.00%
Risk-free interest rate	0.52%		1.60%
Expected option life, in years | yr	2.5		2.5
Number of options issued during the period | shares	451,110		583,500
Total fair value of options issued | $	$ 1,807		$ 2,652

Reserves - Disclosure of Inform

Reserves - Disclosure of Information About Options Outstanding and Exercisable (Detail)	12 Months Ended
	Dec. 31, 2020Option$ / shares	Dec. 31, 2019	Dec. 31, 2018
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Total Options Outstanding	1,786,817	2,394,490	3,883,350
Options [member]
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Exercisable Options | Option	1,053,467
Non-Exercisable Options | Option	733,350
Total Options Outstanding	1,786,817
Weighted Average Remaining Contractual Life	2 years 7 months 6 days
Options [member] | 22.82
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Exercise Price	$ 22.82
Exercisable Options	8,000
Total Options Outstanding	8,000
Weighted Average Remaining Contractual Life	3 months 18 days
Options [member] | 23.26 [member]
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Exercise Price	$ 23.26
Exercisable Options	250,000
Total Options Outstanding	250,000
Weighted Average Remaining Contractual Life	3 months 18 days
Options [member] | 25.99
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Exercise Price	$ 25.99
Exercisable Options	14,880
Total Options Outstanding	14,880
Weighted Average Remaining Contractual Life	2 years 3 months 18 days
Options [member] | 26.24 [member]
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Exercise Price	$ 26.24
Exercisable Options	318,755
Total Options Outstanding	318,755
Weighted Average Remaining Contractual Life	2 years 3 months 18 days
Options [member] | 26.27
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Exercise Price	$ 26.27
Exercisable Options	12,400
Total Options Outstanding	12,400
Weighted Average Remaining Contractual Life	1 year 3 months 18 days
Options [member] | 27.03 [member]
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Exercise Price	$ 27.03
Exercisable Options	1,115
Non-Exercisable Options	1,115
Total Options Outstanding	2,230
Weighted Average Remaining Contractual Life	3 years 4 months 24 days
Options [member] | 27.51 [member]
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Exercise Price	$ 27.51
Exercisable Options	205,150
Total Options Outstanding	205,150
Weighted Average Remaining Contractual Life	1 year 3 months 18 days
Options [member] | 30.66
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Exercise Price	$ 30.66
Non-Exercisable Options	76,800
Total Options Outstanding	76,800
Weighted Average Remaining Contractual Life	4 years 2 months 13 days
Options [member] | 30.82 [member]
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Exercise Price	$ 30.82
Exercisable Options	1,492
Non-Exercisable Options	2,985
Total Options Outstanding	4,477
Weighted Average Remaining Contractual Life	3 years 6 months
Options [member] | 31.26
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Exercise Price	$ 31.26
Exercisable Options	26,640
Non-Exercisable Options	47,740
Total Options Outstanding	74,380
Weighted Average Remaining Contractual Life	3 years 3 months 18 days
Options [member] | 32.93 [member]
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Exercise Price	$ 32.93
Exercisable Options	215,035
Non-Exercisable Options	232,820
Total Options Outstanding	447,855
Weighted Average Remaining Contractual Life	3 years 3 months 18 days
Options [member] | 33.47
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Exercise Price	$ 33.47
Non-Exercisable Options	371,890
Total Options Outstanding	371,890
Weighted Average Remaining Contractual Life	4 years 2 months 13 days

Reserves - Disclosure of Info_2

Reserves - Disclosure of Information About Options Outstanding and Exercisable (Parenthetical) (Detail)	Dec. 31, 2020ExchangeRate
Disclosure of number and weighted average remaining contractual life of outstanding share options [abstract]
Cdn$/US$ exchange rate	1.2732

Reserves - Disclosure of Outsta

Reserves - Disclosure of Outstanding Share Purchase Options (Detail)	12 Months Ended
	Dec. 31, 2020$ / shares	Dec. 31, 2019$ / shares
Disclosure of terms and conditions of share-based payment arrangement [abstract]
Number of Options Outstanding, Beginning balance	2,394,490	3,883,350
Number of Options Outstanding, Granted	451,110	583,500
Number of Options Outstanding, Exercised	(1,056,363)	(2,039,735)
Number of Options Outstanding, Forfeited	(2,420)	(15,475)
Number of Options Outstanding, Expired		(17,150)
Number of Options Outstanding, Ending balance	1,786,817	2,394,490
Weighted Average Exercise Price, Beginning balance	$ 27.08	$ 25.71
Weighted Average Exercise Price, Granted	33.47	32.88
Weighted Average Exercise Price, Exercised	25.70	25.79
Weighted Average Exercise Price, Forfeited	32.01	31.04
Weighted Average Exercise Price, Expired		30.69
Weighted Average Exercise Price, Ending balance	$ 29.54	$ 27.08

Reserves - Disclosure of Outs_2

Reserves - Disclosure of Outstanding Share Purchase Options (Parenthetical) (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2020$ / shares	Dec. 31, 2019USD ($)	Dec. 31, 2019$ / shares
Disclosure of terms and conditions of share-based payment arrangement [abstract]
Fair value per option granted | $ / shares		$ 5.57		$ 6.10
Fair value of options issued during the year | $	$ 2		$ 3

Reserves - Disclosure of Restri

Reserves - Disclosure of Restricted Share Units Reserve (Detail) - RSU [member]	12 Months Ended
	Dec. 31, 2020USD ($)shares	Dec. 31, 2019USD ($)shares
Disclosure of restricted share units reserve [line items]
Beginning balance | shares	366,323	370,133
Granted | shares	132,960	132,620
Released | shares	(128,405)	(133,670)
Forfeited | shares	(620)	(2,760)
Ending balance | shares	370,258	366,323
Weighted Average Intrinsic Value,Beginning Balance | $	$ 21.67	$ 20.36
Weighted Average Intrinsic Value,Granted | $	24.26	24.51
Weighted Average Intrinsic Value,Released | $	22.25	20.82
Weighted Average Intrinsic Value, Forfeited | $	24.11	23.19
Weighted Average Intrinsic Value, Ending Balance | $	$ 22.40	$ 21.67

Reserves - Disclosure of Rest_2

Reserves - Disclosure of Restricted Share Units Reserve (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
RSU [member]
Disclosure of restricted share units reserve [line items]
Fair value of RSU granted	$ 3	$ 3

Reserves - Disclosure of Long T

Reserves - Disclosure of Long Term Investment Revaluation Reserve (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Long Term Investment Revaluation Reserve [line items]
Unrealized gain (loss) on LTIs	[1]	$ 23,990	$ 152,313
Reallocate reserve to retained earnings upon disposal of LTIs		60,814	(7,282)
LTI revaluation reserve (net of tax) [member]
Disclosure Of Long Term Investment Revaluation Reserve [line items]
Long-term investment revaluation reserve at beginning of period		47,209	(112,156)
Unrealized gain (loss) on LTIs		23,990	152,313
Reallocate reserve to retained earnings upon disposal of LTIs		(56,064)	7,052
Long-term investment revaluation reserve at end of period		15,135	47,209
Change in Fair Value [Member] | LTI revaluation reserve (net of tax) [member]
Disclosure Of Long Term Investment Revaluation Reserve [line items]
Long-term investment revaluation reserve at beginning of period		57,062	(112,156)
Unrealized gain (loss) on LTIs		25,856	161,936
Reallocate reserve to retained earnings upon disposal of LTIs		(60,815)	7,282
Long-term investment revaluation reserve at end of period		22,103	57,062
Deferred Tax Recovery Expense [member] | LTI revaluation reserve (net of tax) [member]
Disclosure Of Long Term Investment Revaluation Reserve [line items]
Long-term investment revaluation reserve at beginning of period		(9,853)
Unrealized gain (loss) on LTIs		(1,866)	(9,623)
Reallocate reserve to retained earnings upon disposal of LTIs		4,751	(230)
Long-term investment revaluation reserve at end of period		$ (6,968)	$ (9,853)
[1]	Definitions as follows: “OCI” = Other Comprehensive Income (Loss); “SBC” = Equity Settled Stock Based Compensation; “Options” = Share Purchase Options; “RSUs” = Restricted Share Units; “LTI’s” = Long-Term Investments; “Warrants” = Share Purchase Warrants.

Stock Based Compensation - Perf

Stock Based Compensation - Performance Share Units - Additional Information (Detail) - PSU	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of information relative to Performance Share Units [line items]
Number of performance share units granted	193,830	191,410
Performance share units (PSUs) [member]
Disclosure of information relative to Performance Share Units [line items]
PSUs vesting period	three
Number of performance share units granted	193,830	191,410
Performance share units (PSUs) [member] | Bottom of range [member]
Disclosure of information relative to Performance Share Units [line items]
Potential Performance Factors	0.00%
Performance share units (PSUs) [member] | Top of range [member]
Disclosure of information relative to Performance Share Units [line items]
Potential Performance Factors	200.00%

Stock Based Compensation - Sche

Stock Based Compensation - Schedule of the Company's Outstanding PSUs (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)PSU	Dec. 31, 2019USD ($)PSU
Disclosure Of Other Equity Instruments - Performance Share Units [abstract]
Beginning balance | PSU	604,692	655,727
Beginning balance	$ 19,069	$ 10,756
Granted | PSU	193,830	191,410
Paid | PSU	(204,142)	(229,050)
Forfeited | PSU	(1,230)	(13,395)
Ending balance | PSU	593,150	604,692
Accrual related to the fair value of the PSUs outstanding	$ 21,526	$ 17,174
Foreign exchange adjustment	614	479
Paid	(12,123)	(9,325)
Forfeited	(5)	(15)
Ending balance	$ 29,081	$ 19,069

Stock Based Compensation - Sc_2

Stock Based Compensation - Schedule of Performance Share Units Outstanding (Detail)	12 Months Ended
	Dec. 31, 2020USD ($)PSU	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Disclosure of other equity instruments [line items]
Number outstanding | PSU	593,150
PSU liability at Sept 30, 2019	$ 29,081,000	$ 19,069,000	$ 10,756,000
Grant Year 2018 [Member]
Disclosure of other equity instruments [line items]
Year Of Maturity	2021
Number outstanding | PSU	213,820
Estimated Value Per PSU at Maturity	43.82
Anticipated performance factor at maturity	200.00%
Percent of vesting period complete	92.00%
PSU liability at Sept 30, 2019	$ 17,297,000
Grant Year 2019 [Member]
Disclosure of other equity instruments [line items]
Year Of Maturity	2022
Number outstanding | PSU	186,730
Estimated Value Per PSU at Maturity	42.98
Anticipated performance factor at maturity	193.00%
Percent of vesting period complete	59.00%
PSU liability at Sept 30, 2019	$ 9,140,000
Grant Year 2020 [Member]
Disclosure of other equity instruments [line items]
Year Of Maturity	2023
Number outstanding | PSU	192,600
Estimated Value Per PSU at Maturity	42.40
Anticipated performance factor at maturity	122.00%
Percent of vesting period complete	26.00%
PSU liability at Sept 30, 2019	$ 2,644,000

Earnings per Share ("EPS") an_3

Earnings per Share ("EPS") and Diluted Earnings per Share ("Diluted EPS") - Summary of Diluted EPS Calculated Based on Weighted Average Number of Shares Outstanding (Detail) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Earnings per share [line items]
Basic weighted average number of shares outstanding	448,694	446,021
Diluted weighted average number of shares outstanding	450,070	446,930
Share purchase options [member]
Earnings per share [line items]
Restricted share units	1,003	627
Restricted stock units [member]
Earnings per share [line items]
Restricted share units	373	282

Earnings per Share ("EPS") an_4

Earnings per Share ("EPS") and Diluted Earnings per Share ("Diluted EPS") - Additional Information (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Earnings per share [abstract]
Average market value of common shares	$ 54.79	$ 32.40

Earnings per Share ("EPS") an_5

Earnings per Share ("EPS") and Diluted Earnings per Share ("Diluted EPS") - Summary of Share Purchase Options and Share Purchase Warrants Excluded From Computation of Diluted Earnings Per Share (Detail) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Earnings per share [line items]
Share options not included in calculation of diluted earnings per share	10,000	10,477
Share purchase options [member]
Earnings per share [line items]
Share options not included in calculation of diluted earnings per share		477
Share purchase warrants [member]
Earnings per share [line items]
Share options not included in calculation of diluted earnings per share	10,000	10,000

Supplemental Cash Flow Inform_3

Supplemental Cash Flow Information - Summary of Cash Flow Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Change in non-cash working capital
Accounts receivable	$ (1,181)	$ (2,514)
Accounts payable and accrued liabilities	3,110	(9,791)
Other	(904)	468
Total change in non-cash working capital	$ 1,025	$ (11,837)

Supplemental Cash Flow Inform_4

Supplemental Cash Flow Information - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	Jul. 14, 2020	Dec. 31, 2020	Dec. 31, 2019
Disclosure of cash flow statement [line items]
Dividends declared per share		$ 0.42	$ 0.36
DRIP percentage		11.00%	19.00%
Fair value of shares received		$ (12,402)
Other long term warrants held [Member]
Disclosure of cash flow statement [line items]
Number of share purchase warrants received		2,000,000
Gold X Mining Corp [Member]
Disclosure of cash flow statement [line items]
Number of common shares received	4,467,317
Fair value of shares received	$ 12,000	$ (12,402)
Retained Earnings [member]
Disclosure of cash flow statement [line items]
Dividends paid, common shares		189,000	$ 161,000
Dividends Paid in Cash [member]
Disclosure of cash flow statement [line items]
Dividends paid, common shares		168,000	130,000
Dividends Paid in DRIP [member]
Disclosure of cash flow statement [line items]
Dividends paid, common shares		$ 21,000	$ 31,000
Receipts of Warrants as Consideration for Contract Amendments [Member] | Other long term warrants held [Member]
Disclosure of cash flow statement [line items]
Number of share purchase warrants received		2,000,000

Income Taxes - Schedule of Inco

Income Taxes - Schedule of Income Tax Expense (Recovery) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income tax [line items]
Reversal of previously recognized differences	$ (12,415)	$ (16,521)
Total deferred income tax recovery from operations	2,131	(9,210)
Income tax expense (recovery)	(2,475)	(9,066)
Current income tax expense [member]
Income tax [line items]
Current income tax expense related	(4,606)	144
Deferred income tax expense [member]
Income tax [line items]
Origination and reversal of temporary differences	14,546	7,311
Reversal of previously recognized differences	(12,415)	(16,521)
Total deferred income tax recovery from operations	$ 2,131	$ (9,210)

Income Taxes - Schedule of In_2

Income Taxes - Schedule of Income Tax Recognized as Component of OCI (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income tax relating to components of other comprehensive income [abstract]
Income tax expense (recovery) related to LTIs - common shares held	$ 1,866	$ 9,623

Income Taxes - Schedule of In_3

Income Taxes - Schedule of Income Tax Recognized Directly in Equity (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Current and deferred tax relating to items charged or credited directly to equity [line items]
Income tax expense (recovery) from operations	$ 820	$ (376)

Income Taxes - Schedule of Prov

Income Taxes - Schedule of Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of accounting profit multiplied by applicable tax rates [abstract]
Earnings before income taxes	$ 505,329	$ 77,072
Canadian federal and provincial income tax rates	27.00%	27.00%
Income tax expense (recovery) based on above rates	$ 136,439	$ 20,809
Non-deductible stock based compensation and other	3,057	3,362
Differences in tax rates in foreign jurisdictions	(134,206)	(78,724)
Current period unrecognized temporary differences - impairment of mineral stream interests		44,796
Current period unrecognized temporary differences—other	4,650	17,212
Write down (reversal of write down) or recognition of prior period temporary differences	(12,415)	(16,521)
Income tax expense (recovery)	$ (2,475)	$ (9,066)

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)
Income tax [line items]
Name of subsidiary	Wheaton Precious Metals International Ltd
Proportion of ownership interest in subsidiary	100.00%
Non Capital Losses	$ 119
Temporary differences associated with investments in subsidiaries	1,000
Canada [member]
Income tax [line items]
Capital losses	3
2038 expiration [member]
Income tax [line items]
Non Capital Losses	40
2039 expiration [member]
Income tax [line items]
Non Capital Losses	63
2040 expiration [member]
Income tax [line items]
Non Capital Losses	$ 16

Income Taxes - Deferred Income

Income Taxes - Deferred Income Tax Assets and Liabilities Recognized (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Deferred Tax Assets And Liabilities [line items]
Opening Balance	$ (148)	$ (111)
Recovery (Expense) Recognized In Net Earnings	(2,131)	9,210
Deferred Income Tax Relating To Components Of Other Comprehensive Income	2,885	(9,623)
Recovery (Expense) Recognized In Shareholders' Equity	(820)	376
Closing Balance	(214)	(148)
Non-capital loss carryforwards [member]
Deferred Tax Assets And Liabilities [line items]
Opening Balance	8,756	3,823
Recovery (Expense) Recognized In Net Earnings	(2,077)	4,497
Recovery (Expense) Recognized In Shareholders' Equity	(785)	436
Closing Balance	5,894	8,756
Capital losses carryforward [member]
Deferred Tax Assets And Liabilities [line items]
Opening Balance	8,953
Recovery (Expense) Recognized In Net Earnings	(4,733)	4,503
Deferred Income Tax Relating To Components Of Other Comprehensive Income	(3,459)	4,450
Closing Balance	761	8,953
Deferred tax assets other [member]
Deferred Tax Assets And Liabilities [line items]
Opening Balance	694	387
Recovery (Expense) Recognized In Net Earnings	4,806	307
Closing Balance	5,500	694
Interest capitalized for accounting [member]
Deferred Tax Assets And Liabilities [line items]
Opening Balance	(87)	(87)
Closing Balance	(87)	(87)
Debt and share financing fees [member]
Deferred Tax Assets And Liabilities [line items]
Opening Balance	(711)	(591)
Recovery (Expense) Recognized In Net Earnings	18	(60)
Recovery (Expense) Recognized In Shareholders' Equity	(35)	(60)
Closing Balance	(728)	(711)
Unrealized gains on long term investments [member]
Deferred Tax Assets And Liabilities [line items]
Opening Balance	(14,073)
Recovery (Expense) Recognized In Net Earnings	(79)
Deferred Income Tax Relating To Components Of Other Comprehensive Income	6,344	(14,073)
Closing Balance	(7,808)	(14,073)
Mineral stream interest [member]
Deferred Tax Assets And Liabilities [line items]
Opening Balance	(3,532)	(3,532)
Closing Balance	(3,532)	(3,532)
Foreign withholding tax [member]
Deferred Tax Assets And Liabilities [line items]
Opening Balance	(148)	(111)
Recovery (Expense) Recognized In Net Earnings	(66)	(37)
Closing Balance	$ (214)	$ (148)

Income Taxes - Deferred Incom_2

Income Taxes - Deferred Income Tax Assets and Liabilities Recognized (Parenthetical) (Detail) $ in Millions	Dec. 31, 2020USD ($)
Deferred tax assets and liabilities [abstract]
Non-tax effected deductible temporary differences which gave rise to a deferred tax asset being recognized	$ 22
Non-tax effected deductible temporary differences on account of capital which have been recognized as a deferred tax asset	$ 3

Income Taxes -Schedule of Defer

Income Taxes -Schedule of Deferred Income Tax Assets Unrecognized (Detail) - Canada [member] - USD ($) $ in Thousands		Dec. 31, 2020	Dec. 31, 2019
Unrecognized deferred tax assets [line items]
Deferred tax assets		$ 131,710	$ 140,279
Non-capital losses [member]
Unrecognized deferred tax assets [line items]
Deferred tax assets	[1]	26,313	19,145
Financing fees [member]
Unrecognized deferred tax assets [line items]
Deferred tax assets			1,383
Mineral stream interest [member]
Unrecognized deferred tax assets [line items]
Deferred tax assets		96,646	107,785
Deferred tax assets other [member]
Unrecognized deferred tax assets [line items]
Deferred tax assets		2,296	4,282
Convertible note receivable [member]
Unrecognized deferred tax assets [line items]
Deferred tax assets		1,330	951
Unrealized losses on long term investments [member]
Unrecognized deferred tax assets [line items]
Deferred tax assets		$ 5,125	$ 6,733
[1]	As at December 31, 2020, the Company had not recognized the tax effect on $97 million of non-capital losses as a deferred tax asset.

Income Taxes -Schedule of Def_2

Income Taxes -Schedule of Deferred Income Tax Assets Unrecognized (Parenthetical) (Detail) $ in Millions	Dec. 31, 2020USD ($)
Non-capital losses [member] | Canada [member]
Unrecognized deferred tax assets [line items]
Non-tax effected deductible temporary differences for which no deferred tax asset is recognized	$ 97

Other Current Assets - Disclosu

Other Current Assets - Disclosure of other current assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Other Current Assets [Line Items]
Non-revolving term loan	$ 813	$ 431
Prepaid expenses	2,388	1,492
Class action settlement recoverable		41,500
Other	64	205
Total other current assets	$ 3,265	$ 43,628

Other Current Assets - Addition

Other Current Assets - Additional Information (Detail) - Kutcho [member] $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2020	Nov. 25, 2019USD ($)	Nov. 25, 2019CAD ($)
Disclosure Of Other Current Assets [Line Items]
Short term loan advanced stated interest rate	15.00%
Short term loan lent maturity date	Dec. 31, 2021
Maximum [member]
Disclosure Of Other Current Assets [Line Items]
Non revolving short term loan maximum lending capacity		$ 1	$ 1.3

Other Long-Term Assets - Schedu

Other Long-Term Assets - Schedule of Other Long-Term Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Other Non current Assets [Abstract]
Intangible assets	$ 3,036	$ 3,419
Debt issue costs—Revolving Facility	5,202	5,154
Other	5,004	6,875
Total other long-term assets	$ 13,242	$ 15,448

Related Party Transactions - Sc

Related Party Transactions - Schedule of Key Management Personnel Compensation, Including Directors (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of transactions between related parties [line items]
Short-term benefits	$ 8,031	$ 6,599
Post-employment benefits	658	661
Equity settled stock based compensation (a non-cash expense)	3,555	3,709
Total executive compensation	24,772	21,612
Performance share units (PSUs) [member]
Disclosure of transactions between related parties [line items]
Equity settled stock based compensation (a non-cash expense)	$ 12,528	$ 10,643

Related Party Transactions - _2

Related Party Transactions - Schedule of Key Management Personnel Compensation, Including Directors (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2020
Disclosure of transactions between related parties [abstract]
Vesting period of performance share units	3 years

Post-Employment Benefit Costs -

Post-Employment Benefit Costs - Schedule of Post Employment Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of terms and conditions of defined contribution retirement savings plan [abstract]
Supplemental Employee Retirement Plan (SERP)	$ 806	$ 810
Group RRSP	257	223
Total post-employment benefits	$ 1,063	$ 1,033

Post-Employment Benefit Costs_2

Post-Employment Benefit Costs - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Retirement Benefits Plan [Line Items]
Post employment benefit plan employer matching contribution percent of match	125.00%
Percentage of registered retirement savings plan contribution limit to be paid by employer	56.00%
Percentage of employee salary eligible for Registered Retirement Savings Plan contribution by employee	8.00%
Supplemental employee retirement plan [member]
Retirement Benefits Plan [Line Items]
Description of retirement benefits promised to participants		Interest on this benefit accrues annually based on the 5-year Government of Canada bond rate.
Retirement plan benefits vesting period		5 years
Retirement plan benenfits period over which the same shall be distributed		10 years
Supplemental employee retirement plan [member] | Bottom of range [member]
Retirement Benefits Plan [Line Items]
Agggregate percentage of employees base salary and target bonus net of amount paid to group RRSP		10.00%
Supplemental employee retirement plan [member] | Top of range [member]
Retirement Benefits Plan [Line Items]
Agggregate percentage of employees base salary and target bonus net of amount paid to group RRSP		15.00%

Commitments and Contingencies -

Commitments and Contingencies - Summary of Commitments to Purchase Mineral Stream (Detail)	Dec. 11, 2020	Dec. 31, 2020oz$ / oz	Nov. 05, 2020
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment | oz		8.94
Penasquito [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Jul. 24, 2007
Penasquito [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Penasquito [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		25.00%
Per Unit of Measurement Cash Payment		4.29
Penasquito [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Penasquito [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Constancia [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Aug. 8, 2012
Constancia [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		50.00%
Per Unit of Measurement Cash Payment		408
Constancia [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		100.00%
Per Unit of Measurement Cash Payment		6.02
Constancia [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Constancia [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Salobo [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Feb. 28, 2013
Salobo [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		75.00%
Per Unit of Measurement Cash Payment		412
Salobo [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Salobo [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Salobo [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Sudbury [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		20 years
Date of Original Contract		Feb. 28, 2013
Sudbury [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		70.00%
Per Unit of Measurement Cash Payment		400
Sudbury [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Sudbury [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Sudbury [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Antamina [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Nov. 3, 2015
Antamina [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Antamina [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Per ounce cash payment as a percentage of the per ounce price received related to metal delivered		20.00%
Percentage of production to be purchased		33.75%
Antamina [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Antamina [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
San Dimas [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		May 10, 2018
San Dimas [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased, description		variable
Per Unit of Measurement Cash Payment		606
San Dimas [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
San Dimas [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
San Dimas [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Stillwater [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Jul. 16, 2018
Stillwater [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Per ounce cash payment as a percentage of the per ounce price received related to metal delivered		18.00%
Percentage of production to be purchased		100.00%
Stillwater [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Stillwater [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per ounce cash payment as a percentage of the per ounce price received related to metal delivered		18.00%
Percentage of production to be purchased		4.50%
Stillwater [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Voisey's Bay [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Jun. 11, 2018
Voisey's Bay [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Voisey's Bay [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Voisey's Bay [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Voisey's Bay [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per ounce cash payment as a percentage of the per ounce price received related to metal delivered		18.00%
Percentage of production to be purchased		42.40%
Los Filos [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		25 years
Date of Original Contract		Oct. 15, 2004
Los Filos [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Los Filos [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		100.00%
Per Unit of Measurement Cash Payment		4.46
Los Filos [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Los Filos [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Zinkgruvan [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Dec. 8, 2004
Zinkgruvan [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Zinkgruvan [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		100.00%
Per Unit of Measurement Cash Payment		4.46
Zinkgruvan [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Zinkgruvan [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Yauliyacu [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Mar. 23, 2006
Yauliyacu [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Yauliyacu [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		100.00%
Per Unit of Measurement Cash Payment		8.94
Yauliyacu [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Yauliyacu [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Stratoni [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Apr. 23, 2007
Stratoni [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Stratoni [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		100.00%
Per Unit of Measurement Cash Payment		11.43
Stratoni [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Stratoni [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Neves-Corvo [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		50 years
Date of Original Contract		Jun. 5, 2007
Neves-Corvo [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Neves-Corvo [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		100.00%
Per Unit of Measurement Cash Payment		4.34
Neves-Corvo [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Neves-Corvo [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Aljustrel [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		50 years
Date of Original Contract		Jun. 5, 2007
Aljustrel [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Aljustrel [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Per ounce cash payment as a percentage of the per ounce price received related to metal delivered		50.00%
Percentage of production to be purchased		100.00%
Aljustrel [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Aljustrel [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Minto [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Nov. 20, 2008
Minto [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Per ounce cash payment as a percentage of the per ounce price received related to metal delivered		75.00%
Percentage of production to be purchased		100.00%
Minto [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		100.00%
Per Unit of Measurement Cash Payment		4.31
Minto [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Minto [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Keno Hill [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Oct. 2, 2008
Keno Hill [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Keno Hill [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		variable
Percentage of production to be purchased		25.00%
Keno Hill [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Keno Hill [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Pascua-Lama [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Sep. 8, 2009
Pascua-Lama [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Pascua-Lama [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		25.00%
Per Unit of Measurement Cash Payment		3.90
Pascua-Lama [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Pascua-Lama [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Rosemont [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Feb. 10, 2010
Rosemont [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		100.00%
Per Unit of Measurement Cash Payment		450
Rosemont [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		100.00%
Per Unit of Measurement Cash Payment		3.90
Rosemont [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Rosemont [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
777 [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Aug. 8, 2012
777 [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		50.00%
Per Unit of Measurement Cash Payment		425
777 [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		100.00%
Per Unit of Measurement Cash Payment		6.26
777 [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
777 [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Toroparu [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Nov. 11, 2013
Toroparu [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		10.00%
Per Unit of Measurement Cash Payment		400
Toroparu [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		50.00%
Per Unit of Measurement Cash Payment		3.90
Toroparu [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Toroparu [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Cotabambas [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Mar. 21, 2016
Cotabambas [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		25.00%
Per Unit of Measurement Cash Payment		450
Cotabambas [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		100.00%
Per Unit of Measurement Cash Payment		5.90
Cotabambas [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Cotabambas [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Kutcho [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Dec. 14, 2017
Kutcho [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Per ounce cash payment as a percentage of the per ounce price received related to metal delivered		20.00%
Percentage of production to be purchased		100.00%
Kutcho [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Per ounce cash payment as a percentage of the per ounce price received related to metal delivered		20.00%
Percentage of production to be purchased		100.00%
Kutcho [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Kutcho [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Loma de La Plata [member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Loma de La Plata [member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Loma de La Plata [member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased		12.50%
Per Unit of Measurement Cash Payment		4
Loma de La Plata [member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Loma de La Plata [member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Marmato [Member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Nov. 5, 2020
Marmato [Member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Per ounce cash payment as a percentage of the per ounce price received related to metal delivered		18.00%
Percentage of production to be purchased		6.50%	6.50%
Marmato [Member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Per ounce cash payment as a percentage of the per ounce price received related to metal delivered		18.00%
Percentage of production to be purchased		100.00%	100.00%
Marmato [Member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Marmato [Member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Cozamin [Member]
Disclosure of contractual obligations and commitments [line items]
Term of Agreement		Life of Mine
Date of Original Contract		Dec. 10, 2020
Cozamin [Member] | Gold [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Cozamin [Member] | Silver [member]
Disclosure of contractual obligations and commitments [line items]
Per ounce cash payment as a percentage of the per ounce price received related to metal delivered	10.00%	10.00%
Percentage of production to be purchased	50.00%	50.00%
Cozamin [Member] | Palladium [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%
Cozamin [Member] | Cobalt [member]
Disclosure of contractual obligations and commitments [line items]
Per Unit of Measurement Cash Payment, description		n/a
Percentage of production to be purchased		0.00%

Commitments and Contingencies_2

Commitments and Contingencies - Summary of Commitments to Purchase Mineral Stream (Parenthetical) (Detail) lb in Millions	12 Months Ended
	Dec. 31, 2020USD ($)oz$ / ozlb	Dec. 11, 2020oz	Nov. 05, 2020oz	Jun. 11, 2018
Disclosure of contractual obligations and commitments [line items]
Percentage of metal production at the mine which WPM is entitled to after step down				21.20%
Per Ounce Cash Payment	8.94
Maximum top up payment	10
Price cap on a per ounce basis	18.94
Yauliyacu [member]
Disclosure of contractual obligations and commitments [line items]
Minimum market price of silver on a per ounce basis before top up payment is required | $ / oz	20
Maximum market price of silver on a per ounce basis before top up payment is capped | $ / oz	40
Aljustrel [member]
Disclosure of contractual obligations and commitments [line items]
Maximum percentage of copper included in concentrate	15.00%
Constancia and 777 [member]
Disclosure of contractual obligations and commitments [line items]
Initial term of contract	40 years
Keno Hill PMPA [Member] | Bottom of range [member]
Disclosure of contractual obligations and commitments [line items]
Per ounce cash payment as a percentage of the spot price of metal delivered	10.00%
Silver Price Per Ounce At Which Bottom Range Price Takes Effect	23
Keno Hill PMPA [Member] | Top of range [member]
Disclosure of contractual obligations and commitments [line items]
Per ounce cash payment as a percentage of the spot price of metal delivered	90.00%
Silver Price Per Ounce At Which Top Range Price Takes Effect	15
Gold interests [member] | San Dimas [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	25.00%
Percentage of silver production to be Converted to gold and purchased	25.00%
Gold to silver price ratio minimum limit for revisiting stated exchange rate	50
Gold to silver price ratio maximum limit for revisiting stated exchange rate	90
Exchange ratio to be fixed when price ratio reach minimum limit for six months	50
Exchange ratio to be fixed when price ratio reach maximum limit for six months	90
Gold to silver exchange ratio, description	If the average gold to silver price ratio decreases to less than 50:1 or increases to more than 90:1 for a period of 6 months or more, then the “70” shall be revised to “50” or “90”, as the case may be, until such time as the average gold to silver price ratio is between 50:1 to 90:1 for a period of 6 months or more in which event the “70” shall be reinstated.
Gold interests [member] | Minto PMPA Agreement Amendment [member]
Disclosure of contractual obligations and commitments [line items]
Per ounce cash payment as a percentage of the spot price of metal delivered	75.00%
Number of ounces to be delivered before sharing mechanism applies	11,000
Per Ounce Cash Payment | $ / oz	325
No of months for continuation of amended pricing	14 months
Gold [member] | San Dimas [member]
Disclosure of contractual obligations and commitments [line items]
Gold to silver exchange ratio	70
Per Ounce Cash Payment | $ / oz	606
Gold [member] | Stillwater [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	100.00%
Gold [member] | Voisey's Bay [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Gold [member] | Yauliyacu [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Gold [member] | Stratoni [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Gold [member] | Aljustrel [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Gold [member] | Minto [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	100.00%
Number of ounces to be delivered before sharing mechanism applies	30,000
Attributable Payable Production to be Purchased there after	50.00%
Analyst consensus copper price per pound exceeds | $	$ 2.50
Gold [member] | Cotabambas [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	25.00%
Attributable Payable Production to be Purchased after stream percentage reduction	16.67%
Per Ounce Cash Payment | $ / oz	450
Gold [member] | Kutcho [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	100.00%
Attributable Payable Production to be Purchased after stream percentage reduction	66.67%
Cumulative gold ounces to be delivered before reduction in stream percentage	51,000
Gold [member] | Constancia and 777 [member]
Disclosure of contractual obligations and commitments [line items]
Price per ounce after the initial 40 year term | $ / oz	550
Gold [member] | Marmato [member]
Disclosure of contractual obligations and commitments [line items]
Per ounce cash payment as a percentage of the spot price of metal delivered			22.00%
Percentage of production to be purchased	6.50%		6.50%
Cumulative gold ounces to be delivered before reduction in stream percentage			190,000
Number of ounces to be delivered before first step down in entitlement percentage			190,000
Percentage of metal production at the mine which WPM is entitled to after step down	3.25%		3.25%
Gold [member] | Cozamin [Member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Silver [member] | San Dimas [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Percentage of silver production to be Converted to gold and purchased	25.00%
Silver [member] | Stillwater [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Silver [member] | Voisey's Bay [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Silver [member] | Yauliyacu [member]
Disclosure of contractual obligations and commitments [line items]
Price floor on a per ounce basis	4.44
Percentage of production to be purchased	100.00%
Number of silver ounces to be delivered before sharing mechanism applies	1,500,000
Top up payment to be paid on a per ounce basis as a percentage of the difference between the actual price per ounce and the Minimum price per ounce	50.00%
Purchase commitments percentage	50.00%
Per Ounce Cash Payment | $ / oz	8.94
Silver [member] | Stratoni [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	100.00%
Per Ounce Cash Payment | $ / oz	11.43
Top up payment on a per ounce basis - level 3 | $ / oz	7
Area of drilling completed	30,000
Silver [member] | Aljustrel [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	100.00%
Silver [member] | Minto [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	100.00%
Per Ounce Cash Payment | $ / oz	4.31
Silver [member] | Cotabambas [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	100.00%
Per Ounce Cash Payment | $ / oz	5.90
Silver [member] | Kutcho [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	100.00%
Attributable Payable Production to be Purchased after stream percentage reduction	66.67%
Cumulative silver ounces to be delivered before reduction in stream percentage	5,600,000
Silver [member] | Constancia and 777 [member]
Disclosure of contractual obligations and commitments [line items]
Price per ounce after the initial 40 year term | $ / oz	9.90
Silver [member] | Marmato [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	100.00%		100.00%
Cumulative silver equivalent ounces to be produced before reduction in stream percentage	2,150,000
Number of ounces to be delivered before first step down in entitlement percentage			2,150,000
Per ounce cash payment as a percentage of the spot price of metal delivered after upfront deposit reduced to NIL			22.00%
Percentage of metal production at the mine which WPM is entitled to after step down	50.00%		50.00%
Silver [member] | Cozamin [Member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	50.00%	50.00%
Number of ounces to be delivered before first step down in entitlement percentage	10,000,000	10,000,000
Percentage of metal production at the mine which WPM is entitled to after step down	33.00%	33.00%
Palladium [member] | San Dimas [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Palladium [member] | Stillwater [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	4.50%
Number of ounces to be delivered before first step down in entitlement percentage	375,000
Percentage of production to be purchased after first step down	2.25%
Number of ounces to be delivered before second step down in entitlement percentage	550,000
Percentage of production to be purchased after second step down	1.00%
Palladium [member] | Voisey's Bay [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Palladium [member] | Yauliyacu [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Palladium [member] | Stratoni [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Palladium [member] | Aljustrel [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Palladium [member] | Minto [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Palladium [member] | Cotabambas [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Palladium [member] | Kutcho [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Palladium [member] | Marmato [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Palladium [member] | Cozamin [Member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Cobalt [member] | San Dimas [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Cobalt [member] | Stillwater [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Cobalt [member] | Voisey's Bay [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	42.40%
Per ounce cash payment as a percentage of the spot price of metal delivered after upfront deposit reduced to NIL	22.00%
Cobalt pounds to be delivered before entitlement step down takes effect | lb	31
Percentage of metal production at the mine which WPM is entitled to after step down	21.20%
Cobalt [member] | Yauliyacu [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Cobalt [member] | Stratoni [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Cobalt [member] | Aljustrel [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Cobalt [member] | Minto [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Cobalt [member] | Cotabambas [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Cobalt [member] | Kutcho [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Cobalt [member] | Marmato [member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Cobalt [member] | Cozamin [Member]
Disclosure of contractual obligations and commitments [line items]
Percentage of production to be purchased	0.00%
Gold and palladium [member] | Stillwater [member]
Disclosure of contractual obligations and commitments [line items]
Per ounce cash payment as a percentage of the spot price of metal delivered after upfront deposit reduced to NIL	22.00%
Gold And Silver [Member] | Cotabambas [member]
Disclosure of contractual obligations and commitments [line items]
Cumulative silver equivalent ounces to be produced before reduction in stream percentage	90
Gold And Silver [Member] | Marmato [member]
Disclosure of contractual obligations and commitments [line items]
Per ounce cash payment as a percentage of the spot price of metal delivered after upfront deposit reduced to NIL			22.00%

Commitments and Contingencies_3

Commitments and Contingencies - Additional Information (Detail) $ in Thousands		12 Months Ended
		Dec. 31, 2020USD ($)MillionTonnesPerAnnumTonnes_Per_Day		Dec. 24, 2019USD ($)	Jun. 11, 2018USD ($)
Disclosure of contingent liabilities [line items]
Upfront cash consideration to be paid	[1],[2]	$ 326,000
Upfront cash consideration paid to date		32,500	[1]		$ 390,000
Reassessment interest and penalties		$ 8,000
Percentage of reassessments interest and penalties		50.00%
Litigation of Settlement To Defendant		$ 41,500
Salobo Three Expansion [member]
Disclosure of contingent liabilities [line items]
Mill throughput capacity | MillionTonnesPerAnnum		24
2013-2015 taxation year [member]
Disclosure of contingent liabilities [line items]
Potential estimated cash taxes, interest and penalties		$ 2,000
Bottom of range [member] | Mill Throughput Capacity Expansion [member] | Salobo Three Expansion [member]
Disclosure of contingent liabilities [line items]
Expanded Mill throughput capacity | MillionTonnesPerAnnum		28,000,000
Loma de La Plata [member]
Disclosure of contingent liabilities [line items]
Upfront cash consideration to be paid		$ 32,000
Rosemont [member]
Disclosure of contingent liabilities [line items]
Upfront cash consideration to be paid		230,000
First installment payable on permitting projet		50,000
Balance installment amount payable once project costs incurred exceeds specified amount		180,000
Project costs incurred to trigger balance installment payable		98,000
Toroparu [member]
Disclosure of contingent liabilities [line items]
Upfront cash consideration to be paid		$ 138,000
Reduced stream percentage of gold		0.909%
Current stream percentage of gold		10.00%
Amount of non-refundable advance		$ 2,000
Current stream percentage of silver		50.00%
Reduced stream percentage of silver		0.00%
Cotabambas [member]
Disclosure of contingent liabilities [line items]
Amount of non-refundable advance				$ 2,000
Total upfront cash payment for early deposit silver streaming interest		$ 140,000
Upfront cash consideration paid to date		10,000
Unpaid upfront cash consideration with scheduled payment dates		4,000
Kutcho [member]
Disclosure of contingent liabilities [line items]
Total upfront cash payment for early deposit silver streaming interest		65,000
Upfront cash consideration paid to date		7,000
Unpaid upfront cash consideration with no scheduled payment dates		58,000
Additional upfront consideration		$ 20,000
Mill throughput capacity | Tonnes_Per_Day		4,500
Additional payment condition		if processing throughput is increased to 4,500 tonnes per day or more within 5 years of attaining commercial production.
Salobo [member]
Disclosure of contingent liabilities [line items]
Mill throughput capacity | MillionTonnesPerAnnum		24
Salobo [member] | Bottom of range [member] | Mill Throughput Capacity Expansion [member]
Disclosure of contingent liabilities [line items]
Expanded Mill throughput capacity | MillionTonnesPerAnnum		28,000,000
Estimated expansion payments		$ 113,000
Salobo [member] | Bottom of range [member] | Mill Throughput Capacity Expansion [member] | Salobo Three Expansion [member]
Disclosure of contingent liabilities [line items]
Estimated expansion payments		$ 570,000
Salobo [member] | Top of range [member] | Mill Throughput Capacity Expansion [member]
Disclosure of contingent liabilities [line items]
Expanded Mill throughput capacity | MillionTonnesPerAnnum		40,000,000
Estimated expansion payments		$ 923,000
Salobo [member] | Top of range [member] | Mill Throughput Capacity Expansion [member] | Salobo Three Expansion [member]
Disclosure of contingent liabilities [line items]
Estimated expansion payments		670,000
Mermato [member]
Disclosure of contingent liabilities [line items]
Total Upfront Cash Payment For Precious Metal Purchase Agreement		110,000
Upfront Cash Consideration To Be Paid upon extending mining permits		34,000
Upfront Cash Consideration To Be Paid Within 6 months of extending mining permits		4,000
Cozamin [member]
Disclosure of contingent liabilities [line items]
Total Upfront Cash Payment For Precious Metal Purchase Agreement		$ 150,000
[1]	Expressed in thousands of United States dollars; excludes closing costs and capitalized interest, where applicable.
[2]	Please refer to Note 28 for details of when the remaining upfront consideration to be paid becomes due.

Commitments and Contingencies_4

Commitments and Contingencies - Summary of Other Contractual Obligations and Contingencies (Detail)	Dec. 31, 2020USD ($)
Disclosure of contractual obligations [line items]
Total contractual obligations	$ 1,730,377
Bank debt [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	195,000
Interest expense [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	11,655
Non-revolving credit facility [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	208
Leases liabilities [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	3,964
Rosemont [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	231,150
Loma de La Plata [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	32,400
Marmato [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	110,000
Cozamin [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	150,000
Salobo [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	670,000
Toroparu [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	138,000
Cotabambas [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	130,000
Kutcho [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	58,000
2021 [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	192,914
2021 [member] | Interest expense [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	2,311
2021 [member] | Non-revolving credit facility [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	208
2021 [member] | Leases liabilities [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	895
2021 [member] | Marmato [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	38,000
2021 [member] | Cozamin [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	150,000
2021 [member] | Cotabambas [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	1,500
2022 - 2024 [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	683,955
2022 - 2024 [member] | Interest expense [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	8,722
2022 - 2024 [member] | Leases liabilities [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	2,733
2022 - 2024 [member] | Salobo [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	670,000
2022 - 2024 [member] | Cotabambas [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	2,500
2025 - 2026 [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	195,958
2025 - 2026 [member] | Bank debt [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	195,000
2025 - 2026 [member] | Interest expense [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	622
2025 - 2026 [member] | Leases liabilities [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	336
Sub-Total [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	1,072,827
Sub-Total [member] | Bank debt [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	195,000
Sub-Total [member] | Interest expense [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	11,655
Sub-Total [member] | Non-revolving credit facility [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	208
Sub-Total [member] | Leases liabilities [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	3,964
Sub-Total [member] | Marmato [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	38,000
Sub-Total [member] | Cozamin [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	150,000
Sub-Total [member] | Salobo [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	670,000
Sub-Total [member] | Cotabambas [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	4,000
No scheduled due date [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	657,550
No scheduled due date [member] | Rosemont [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	231,150
No scheduled due date [member] | Loma de La Plata [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	32,400
No scheduled due date [member] | Marmato [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	72,000
No scheduled due date [member] | Toroparu [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	138,000
No scheduled due date [member] | Cotabambas [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	126,000
No scheduled due date [member] | Kutcho [member] | Mineral stream interest payments [member]
Disclosure of contractual obligations [line items]
Total contractual obligations	$ 58,000

Commitments and Contingencies_5

Commitments and Contingencies - Summary of Other Contractual Obligations and Contingencies (Parenthetical) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of contractual obligations [line items]
Outstanding on the Revolving Facility	$ 195,000	$ 874,500
Salobo [member] | Mill Throughput Capacity Expansion [member] | Bottom of range [member]
Disclosure of contractual obligations [line items]
Estimated expansion payments	113,000
Salobo [member] | Mill Throughput Capacity Expansion [member] | Top of range [member]
Disclosure of contractual obligations [line items]
Estimated expansion payments	923,000
Salobo [member] | Salobo Three Expansion [member] | Mill Throughput Capacity Expansion [member] | Bottom of range [member]
Disclosure of contractual obligations [line items]
Estimated expansion payments	570,000
Salobo [member] | Salobo Three Expansion [member] | Mill Throughput Capacity Expansion [member] | Top of range [member]
Disclosure of contractual obligations [line items]
Estimated expansion payments	670,000
Bank debt [member]
Disclosure of contractual obligations [line items]
Outstanding on the Revolving Facility	195,000
No scheduled due date [member] | Rosemont [member]
Disclosure of contractual obligations [line items]
Contingent transaction costs	$ 1,000

Segmented Information - Schedul

Segmented Information - Schedule of Operating Segments (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of operating segments [line items]
Sales	$ 1,096,224	$ 861,332
Cost of sales, excluding depletion	266,763	258,559
Depletion	243,889	256,826
Gross margin	585,572	345,947
Impairment charges		165,912
Net earnings	507,804	86,138
Cash Flow From Operations	765,442	501,620
Total Assets	5,957,272	6,278,007
General and administrative material reconciling items [member]
Disclosure of operating segments [line items]
Net earnings	(65,698)	(54,507)
Cash Flow From Operations	(46,914)	(46,292)
Finance costs material reconciling items [member]
Disclosure of operating segments [line items]
Net earnings	(16,715)	(48,730)
Cash Flow From Operations	(17,551)	(44,733)
Other material reconciling Items [member]
Disclosure of operating segments [line items]
Net earnings	2,170	274
Cash Flow From Operations	677	(2,191)
Income tax recovery material reconciling items [member]
Disclosure of operating segments [line items]
Net earnings	2,475	9,066
Cash Flow From Operations	49	(5,380)
Aggregate material reconciling items [member]
Disclosure of operating segments [line items]
Net earnings	(77,768)	(93,897)
Cash Flow From Operations	(63,739)	(98,596)
Total Assets	468,881	543,901
Gold interests [member]
Disclosure of operating segments [line items]
Sales	652,827	541,045
Cost of sales, excluding depletion	157,429	163,997
Depletion	147,268	158,816
Gross margin		218,232
Net earnings	348,130	218,232
Cash Flow From Operations	495,310	377,523
Total Assets	3,349,967	3,497,235
Gold interests [member] | Sudbury [member]
Disclosure of operating segments [line items]
Sales	49,791	38,234
Cost of sales, excluding depletion	11,085	10,946
Depletion	23,027	22,420
Gross margin		4,868
Net earnings	15,679	4,868
Cash Flow From Operations	38,609	27,385
Total Assets	321,016	344,043
Gold interests [member] | Salobo [member]
Disclosure of operating segments [line items]
Sales	450,166	365,448
Cost of sales, excluding depletion	104,545	106,282
Depletion	95,913	100,803
Gross margin		158,363
Net earnings	249,708	158,363
Cash Flow From Operations	345,621	259,166
Total Assets	2,509,344	2,605,257
Gold interests [member] | Constancia [member]
Disclosure of operating segments [line items]
Sales	25,556	27,613
Cost of sales, excluding depletion	5,812	7,945
Depletion	4,837	7,141
Gross margin		12,527
Net earnings	14,907	12,527
Cash Flow From Operations	19,744	19,668
Total Assets	105,569	110,406
Gold interests [member] | Other gold interests [member]
Disclosure of operating segments [line items]
Sales	36,442	29,919
Cost of sales, excluding depletion	8,443	8,736
Depletion	5,642	8,191
Gross margin		12,992
Net earnings	22,357	12,992
Cash Flow From Operations	28,007	21,561
Total Assets	7,526	13,168
Gold interests [member] | San Dimas [member]
Disclosure of operating segments [line items]
Sales	68,519	62,528
Cost of sales, excluding depletion	23,541	26,994
Depletion	12,165	13,828
Gross margin		21,706
Net earnings	32,813	21,706
Cash Flow From Operations	44,978	35,534
Total Assets	182,202	194,367
Gold interests [member] | Stillwater [member]
Disclosure of operating segments [line items]
Sales	22,353	17,303
Cost of sales, excluding depletion	4,003	3,094
Depletion	5,684	6,433
Gross margin		7,776
Net earnings	12,666	7,776
Cash Flow From Operations	18,351	14,209
Total Assets	224,310	229,994
Silver interests [member]
Disclosure of operating segments [line items]
Sales	399,625	288,401
Cost of sales, excluding depletion	101,529	88,906
Depletion	88,041	88,291
Gross margin		111,204
Net earnings	210,055	111,204
Cash Flow From Operations	297,904	196,463
Total Assets	1,669,525	1,759,392
Silver interests [member] | Constancia [member]
Disclosure of operating segments [line items]
Sales	31,285	38,895
Cost of sales, excluding depletion	8,745	14,258
Depletion	11,143	18,044
Gross margin		6,593
Net earnings	11,397	6,593
Cash Flow From Operations	22,541	24,637
Total Assets	217,044	228,187
Silver interests [member] | Penasquito [member]
Disclosure of operating segments [line items]
Sales	150,720	74,578
Cost of sales, excluding depletion	31,704	19,267
Depletion	24,130	14,020
Gross margin		41,291
Net earnings	94,886	41,291
Cash Flow From Operations	119,016	55,310
Total Assets	350,572	374,702
Silver interests [member] | Antamina [member]
Disclosure of operating segments [line items]
Sales	102,241	76,328
Cost of sales, excluding depletion	20,053	15,322
Depletion	41,876	41,267
Gross margin		19,739
Net earnings	40,312	19,739
Cash Flow From Operations	82,188	61,007
Total Assets	626,934	668,810
Silver interests [member] | Other silver interests [member]
Disclosure of operating segments [line items]
Sales	115,379	98,600
Cost of sales, excluding depletion	41,027	40,059
Depletion	10,892	14,960
Gross margin		43,581
Net earnings	63,460	43,581
Cash Flow From Operations	74,159	55,509
Total Assets	474,975	487,693
Mineral Stream Interests [member]
Disclosure of operating segments [line items]
Sales	1,096,224	861,332
Cost of sales, excluding depletion	266,763	258,559
Depletion	243,889	256,826
Gross margin		345,947
Impairment charges		165,912
Net earnings	585,572	180,035
Cash Flow From Operations	829,181	600,216
Total Assets	5,488,391	5,734,106
Palladium interest [member] | Stillwater [member]
Disclosure of operating segments [line items]
Sales	43,772	31,886
Cost of sales, excluding depletion	7,805	5,656
Depletion	8,580	9,719
Gross margin		16,511
Net earnings	27,387	16,511
Cash Flow From Operations	35,967	26,230
Total Assets	241,389	249,969
Cobalt Interests [member] | Voisey's Bay [member]
Disclosure of operating segments [line items]
Impairment charges		165,912
Net earnings		(165,912)
Total Assets	$ 227,510	$ 227,510

Segmented Information - Sched_2

Segmented Information - Schedule of Operating Segments (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Salobo and Sudbury [member] | Vale [member]
Disclosure of operating segments [line items]
Percentage of entity's revenue relative to Mine Operator	46.00%	47.00%
Antamina and Yauliyacu [member] | Glencore plc [member]
Disclosure of operating segments [line items]
Percentage of entity's revenue relative to Mine Operator	12.00%	12.00%
Constancia and 777 [member] | Hudbay Minerals Inc. [member]
Disclosure of operating segments [line items]
Percentage of entity's revenue relative to Mine Operator	14.00%	11.00%
Gold interests [member]
Disclosure of operating segments [line items]
Percentage of sales	10.00%	10.00%
Silver interests [member]
Disclosure of operating segments [line items]
Percentage of sales	10.00%	10.00%

Segmented Information - Sched_3

Segmented Information - Schedule of Company's Geographical Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of geographical areas [line items]
Sales	$ 1,096,224	$ 861,332
Percentage of revenue derived from mineral stream interests located in geographic area	100.00%	100.00%
Mineral stream interest	$ 5,488,391	$ 5,734,106
Percentage of mineral stream interests located in geographic area	100.00%	100.00%
Canada [member]
Disclosure of geographical areas [line items]
Sales	$ 94,239	$ 74,307
Percentage of revenue derived from mineral stream interests located in geographic area	9.00%	9.00%
Mineral stream interest	$ 584,465	$ 616,846
Percentage of mineral stream interests located in geographic area	10.00%	11.00%
United States [member]
Disclosure of geographical areas [line items]
Sales	$ 66,125	$ 49,189
Percentage of revenue derived from mineral stream interests located in geographic area	6.00%	6.00%
Mineral stream interest	$ 466,265	$ 480,529
Percentage of mineral stream interests located in geographic area	8.00%	8.00%
Mexico [member]
Disclosure of geographical areas [line items]
Sales	$ 220,768	$ 139,275
Percentage of revenue derived from mineral stream interests located in geographic area	20.00%	16.00%
Mineral stream interest	$ 534,175	$ 570,385
Percentage of mineral stream interests located in geographic area	10.00%	10.00%
Greece [member]
Disclosure of geographical areas [line items]
Sales	$ 11,488	$ 9,339
Percentage of revenue derived from mineral stream interests located in geographic area	1.00%	1.00%
Mineral stream interest		$ 1,990
Percentage of mineral stream interests located in geographic area	0.00%	0.00%
Portugal [member]
Disclosure of geographical areas [line items]
Sales	$ 33,460	$ 28,012
Percentage of revenue derived from mineral stream interests located in geographic area	3.00%	3.00%
Mineral stream interest	$ 20,261	$ 21,355
Percentage of mineral stream interests located in geographic area	0.00%	0.00%
Sweden [member]
Disclosure of geographical areas [line items]
Sales	$ 34,486	$ 25,250
Percentage of revenue derived from mineral stream interests located in geographic area	3.00%	3.00%
Mineral stream interest	$ 32,956	$ 35,059
Percentage of mineral stream interests located in geographic area	1.00%	1.00%
Argentina / Chile [member]
Disclosure of geographical areas [line items]
Percentage of revenue derived from mineral stream interests located in geographic area	0.00%	0.00%
Mineral stream interest	$ 264,402	$ 264,403
Percentage of mineral stream interests located in geographic area	5.00%	5.00%
Brazil [member]
Disclosure of geographical areas [line items]
Sales	$ 450,166	$ 365,448
Percentage of revenue derived from mineral stream interests located in geographic area	41.00%	42.00%
Mineral stream interest	$ 2,509,344	$ 2,605,258
Percentage of mineral stream interests located in geographic area	46.00%	45.00%
Peru [member]
Disclosure of geographical areas [line items]
Sales	$ 185,492	$ 170,512
Percentage of revenue derived from mineral stream interests located in geographic area	17.00%	20.00%
Mineral stream interest	$ 1,076,183	$ 1,138,281
Percentage of mineral stream interests located in geographic area	20.00%	20.00%
Columbia [Member]
Disclosure of geographical areas [line items]
Percentage of revenue derived from mineral stream interests located in geographic area	0.00%
Mineral stream interest	$ 340
Percentage of mineral stream interests located in geographic area	0.00%
Gold interests [member]
Disclosure of geographical areas [line items]
Sales	$ 652,827	$ 541,045
Mineral stream interest	3,349,967	3,497,235
Gold interests [member] | Canada [member]
Disclosure of geographical areas [line items]
Mineral stream interest	328,543	357,212
Gold interests [member] | United States [member]
Disclosure of geographical areas [line items]
Mineral stream interest	224,310	229,994
Gold interests [member] | Mexico [member]
Disclosure of geographical areas [line items]
Mineral stream interest	182,201	194,365
Gold interests [member] | Brazil [member]
Disclosure of geographical areas [line items]
Mineral stream interest	2,509,344	2,605,258
Gold interests [member] | Peru [member]
Disclosure of geographical areas [line items]
Mineral stream interest	105,569	110,406
Silver interests [member]
Disclosure of geographical areas [line items]
Sales	399,625	288,401
Mineral stream interest	1,669,525	1,759,392
Silver interests [member] | Canada [member]
Disclosure of geographical areas [line items]
Mineral stream interest	28,412	32,124
Silver interests [member] | United States [member]
Disclosure of geographical areas [line items]
Mineral stream interest	566	566
Silver interests [member] | Mexico [member]
Disclosure of geographical areas [line items]
Mineral stream interest	351,974	376,020
Silver interests [member] | Greece [member]
Disclosure of geographical areas [line items]
Mineral stream interest		1,990
Silver interests [member] | Portugal [member]
Disclosure of geographical areas [line items]
Mineral stream interest	20,261	21,355
Silver interests [member] | Sweden [member]
Disclosure of geographical areas [line items]
Mineral stream interest	32,956	35,059
Silver interests [member] | Argentina / Chile [member]
Disclosure of geographical areas [line items]
Mineral stream interest	264,402	264,403
Silver interests [member] | Peru [member]
Disclosure of geographical areas [line items]
Mineral stream interest	970,614	1,027,875
Silver interests [member] | Columbia [Member]
Disclosure of geographical areas [line items]
Mineral stream interest	340
Palladium interest [member]
Disclosure of geographical areas [line items]
Mineral stream interest	241,389	249,969
Palladium interest [member] | United States [member]
Disclosure of geographical areas [line items]
Mineral stream interest	241,389	249,969
Cobalt Interests [member]
Disclosure of geographical areas [line items]
Mineral stream interest	227,510	227,510
Cobalt Interests [member] | Canada [member]
Disclosure of geographical areas [line items]
Mineral stream interest	$ 227,510	$ 227,510

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - $ / shares	Mar. 11, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure of Events After Reporting Period [line items]
Dividend reinvested discount rate			1.00%	3.00%
Subsequent [member]
Disclosure of Events After Reporting Period [line items]
Declaration of quarterly dividend rate description		Under the Company’s dividend policy, the quarterly dividend per common share is targeted to equal approximately 30% of the average cash flow generated by operating activities in the previous four quarters divided by the Company’s then outstanding common shares, all rounded to the nearest cent.
Dividend rate percentage		30.00%
Major Ordinary Share Transactions [member] | Subsequent [member]
Disclosure of Events After Reporting Period [line items]
Dividend per share	$ 0.13
Dividend payable, date of record	Mar. 26, 2021
Dividend reinvested discount rate	1.00%
Dividend payable date	Apr. 13, 2021
Quarterly dividend [member] | Subsequent [member]
Disclosure of Events After Reporting Period [line items]
Minimum quarterly dividend to be paid during year		$ 0.13