Mountain Province Diamonds (MPVDF) 40-F 30 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
Amendment Flag	false
Document Period End Date	Dec. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Entity Registrant Name	Mountain Province Diamonds Inc.
Entity Central Index Key	0001004530
Current Fiscal Year End Date	--12-31
Entity Emerging Growth Company	false
Entity Address, Country	CA
Entity Interactive Data Current	Yes
Entity Current Reporting Status	Yes
Entity Common Stock, Shares Outstanding	210,490,807
ICFR Auditor Attestation Flag	true

Consolidated Balance Sheets

Consolidated Balance Sheets - CAD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets
Cash	$ 35,152	$ 34,751
Amounts receivable	797	1,688
Prepaid expenses and other	2,009	1,179
Derivative assets	23	587
Inventories	90,506	111,772
Total current assets	128,487	149,977
Restricted cash	15,019	0
Reclamation deposit	250	250
Derivative assets	162	200
Property, plant and equipment	451,411	672,268
Total assets	595,329	822,695
Current liabilities
Accounts payable and accrued liabilities	41,010	47,319
Dunebridge revolving credit facility	31,813	0
Decommissioning and restoration liability	2,489	2,445
Lease liabilities	418	811
Total current liabilities	75,730	50,575
Secured notes payable	374,706	378,869
Lease liabilities	750	1,034
Decommissioning and restoration liability	70,443	56,071
Shareholders' equity:
Share capital	631,498	631,224
Share-based payments reserve	6,820	6,111
Deficit	(565,952)	(302,523)
Accumulated other comprehensive income	1,334	1,334
Total shareholders' equity	73,700	336,146
Total liabilities and shareholders' equity	$ 595,329	$ 822,695

Consolidated Statements of Comp

Consolidated Statements of Comprehensive (Loss) Income - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Statement of comprehensive income [abstract]
Sales	$ 226,993	$ 276,334
Cost of sales:
Production costs	153,679	152,585
Cost of acquired diamonds	11,088	16,081
Depreciation and depletion	63,711	82,825
(Loss) earnings from mine operations	(1,485)	24,843
Impairment loss on property, plant and equipment	217,366	115,753
Exploration and evaluation expenses	3,807	8,884
Selling, general and administrative expenses	13,153	13,058
Operating loss	(235,811)	(112,852)
Net finance expenses	(39,997)	(38,637)
Derivative gains (losses)	127	(1,214)
Foreign exchange gains	12,252	20,764
Loss before taxes	(263,429)	(131,939)
Current income taxes	0	7
Deferred income taxes	0	3,174
Total income taxes	0	3,181
Net loss for the year	(263,429)	(128,758)
Total comprehensive loss for the year	$ (263,429)	$ (128,758)
Basic and diluted loss per share	$ (1.25)	$ (0.61)
Basic weighted average number of shares outstanding	210,406,658	210,134,192
Diluted weighted average number of shares outstanding	210,406,658	210,134,192

Consolidated Statements of Equi

Consolidated Statements of Equity - CAD ($) $ in Thousands	Total	Share capital	Share-based payments reserve	Deficit	Accumulated other comprehensive income
Balance at Dec. 31, 2018	$ 464,115	$ 629,796	$ 6,750	$ (173,765)	$ 1,334
Balance (in Shares) at Dec. 31, 2018		210,102,476
Net loss for the year	(128,758)	$ 0	0	(128,758)	0
Share-based payment	789	0	789	0	0
Issuance of common shares –restricted share units	0	$ 1,428	(1,428)	0	0
Issuance of common shares –restricted share units (in Shares)		289,997
Balance at Dec. 31, 2019	336,146	$ 631,224	6,111	(302,523)	1,334
Balance (in Shares) at Dec. 31, 2019		210,392,473
Net loss for the year	(263,429)	$ 0	0	(263,429)	0
Share-based payment	983	0	983	0	0
Issuance of common shares –restricted share units	0	$ 274	(274)	0	0
Issuance of common shares –restricted share units (in Shares)		98,334
Balance at Dec. 31, 2020	$ 73,700	$ 631,498	$ 6,820	$ (565,952)	$ 1,334
Balance (in Shares) at Dec. 31, 2020		210,490,807

Consolidated Statements of Cash

Consolidated Statements of Cash Flows $ in Thousands, $ in Millions		12 Months Ended
		Dec. 31, 2020CAD ($)	Dec. 31, 2019CAD ($)
Operating activities:
Net loss for the year		$ (263,429)	$ (128,758)
Adjustments:
Net finance expenses		39,907	38,472
Depreciation and depletion		63,929	83,043
Impairment loss on property, plant and equipment		217,366	115,753
Share-based payment expense		983	789
Derivative gain (losses)		(127)	1,214
Foreign exchange gains		(12,252)	(20,764)
Current income taxes		0	(574)
Deferred income taxes		0	(3,174)
Total operating activities before non-cash operating working capital		46,377	86,001
Changes in non-cash operating working capital:
Amounts receivable		890	790
Prepaid expenses and other		(830)	90
Inventories		11,591	(6,740)
Accounts payable and accrued liabilities		(6,280)	(782)
Cash flows from (used in) operating activities		51,748	79,359
Investing activities:
Restricted cash		(15,019)	0
Interest income		170	521
Purchase of property, plant and equipment		(38,837)	(28,095)
Cash flows from (used in) investing activities		(53,686)	(27,574)
Financing activities:
Payment of lease liabilities		(679)	(808)
Repurchase of secured notes		0	(13,158)
Proceeds from settlement of currency contracts		3,019	0
Provided by revolving credit facility	[1]	32,074	0
Provided by Dunebridge revolving credit facility	[1]	3,019
Financing costs		(35,424)	(33,513)
Cash flows from (used in) financing activities		2,009	(47,479)
Effect of foreign exchange rate changes on cash		330	(263)
Increase in cash		401	4,043
Cash, beginning of year		34,751	30,708
Cash, end of year		$ 35,152	$ 34,751
[1]	The settlement of the previous revolving credit facility occurred directly between Dunebridge and Scotiabank and Nedbank for $32 million, and therefore was a non-cash financing transaction (Note 10).

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows (Parenthetical) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)
Dunebridge Scotiabank and Nedbank [Member] | Revolving Credit Facility1 [Member]
Statement [Line Items]
Non-cash financing transaction	$ 32

Nature of Operations and Going

Nature of Operations and Going Concern	12 Months Ended
	Dec. 31, 2020
Nature of Operations [Abstract]
Nature of Operations and Going Concern	1. NATURE OF OPERATIONS AND GOING CONCERN Mountain Province Diamonds Inc. (“Mountain Province” and together with its subsidiaries collectively, the “Company”) was incorporated on December 2, 1986 under the British Columbia Company Act. The Company amended its articles and continued incorporation under the Ontario Business Corporations Act effective May 8, 2006. The Company holds a 49% interest in the operating Gahcho Kué Project (“Gahcho Kué Diamond Mine” or “GK Mine” or “GK Project”) in Canada’s Northwest Territories. The Company also owns 100% of the mineral rights of the Kennady North Project (“KNP”). The address of the Company’s registered office and its principal place of business is 161 Bay Street, Suite 1410, PO Box 216, Toronto, ON, Canada, M5J 2S1. The Company’s shares are listed on the Toronto Stock Exchange (“TSX”) under the symbol ‘MPVD’. As of December 31, 2019, the Company was also listed on the NASDAQ under the same symbol. During the year ended December 31, 2020, the Company voluntarily delisted its common shares from the NASDAQ. These consolidated financial statements have been prepared using the going concern basis of preparation which assumes that the Company will realize its assets and settle its liabilities in the normal course of business. The Company experienced operating losses of $235.8 million for the year ended December 31, 2020 (2019 – operating losses of $112.9). Included in the operating losses is an impairment loss on property, plant and equipment of $217.4 million (2019 – $ 115.8 million). As at December 31, 2020, the Company had working capital of Amid the continuing COVID-19 pandemic, the Company has experienced liquidity challenges primarily resulting from the deferral of the normal diamond sales carried out in Antwerp, Belgium. While the Company had recently resumed its normal sales in September 2020, the risk of decreased sales volumes and realized prices, particularly through 2021, could significantly reduce 2021 revenue. On September 30, 2020, the Company entered into a senior secured revolving credit facility with Dunebridge Worldwide Ltd. (“Dunebridge”) (Note 10 and 16) for million to reassign its previously drawn revolving credit facility (“RCF”). The COVID-19 pandemic has caused issues with respect to supply/demand imbalances and diamond sales in the near-term, particularly in 2021 along with the need to repay the Dunebridge senior secured revolving credit facility (“Dunebridge RCF”) by September 30, 2021, funding of ongoing operational costs and semi-annual interest payments on the secured notes may result in a future event of default under the terms of these debt instruments. Furthermore, due to the temporary suspension of mine operations subsequent to the year ended December 31, 2020, additional liquidity challenges have arisen. Management will seek alternative sources of financing; however, such alternative sources of financing may not be available or at terms acceptable to the Company. Given the challenges related to COVID-19 mentioned above, alternative sources of financing will be required in the near term, in order to fund ongoing operations. The above conditions related to the diamond industry, the Company’s operations and the Company’s current financing constraints each represent a material uncertainty that results in substantial doubt as to the Company’s ability to continue as a going concern. These financial statements do not include the adjustments to the amounts and classification of assets and liabilities that would be necessary should the Company be unable to continue as a going concern. These adjustments may be material. Failure to meet the obligations for cash calls to fund the Company’s share in the GK Mine may lead to dilution of the interest in the GK Mine. Authorization of Financial Statements These consolidated financial statements were approved by the Board of Directors on March 29

Basis of Presentation

Basis of Presentation	12 Months Ended
	Dec. 31, 2020
Disclosure of basis of preparation [Abstract]
Basis of Presentation	2. BASIS OF PRESENTATION These consolidated financial statements of the Company were prepared in accordance with International Financial Reporting Standards (“IFRS”) as issued by the International Accounting Standards Board. The policies set out below were consistently applied to all the periods presented, except as otherwise noted. These financial statements were prepared under the historical cost convention, as modified by the revaluation of derivative assets and liabilities and are presented in thousands of Canadian dollars. The consolidated financial statements include the accounts of Mountain Province and its wholly-owned subsidiaries: ● 2435572 Ontario Inc. (100% owned) ● 2435386 Ontario Inc. (100% owned by 2435572 Ontario Inc.) ● Kennady Diamonds Inc. (100% owned) The Company’s 49% interest in the GK Mine is held through 2435386 Ontario Inc. All intercompany balances, transactions, income, expenses, profits and losses, including unrealized gains and losses have been eliminated on consolidation. The Company’s interest in the GK Mine through its joint arrangement is a joint operation under IFRS 11, Joint Arrangements, and, accordingly has recorded the assets, liabilities, revenues and expenses in relation to its interest in the joint operation. The Company’s 49% interest in the GK Mine is bound by a contractual arrangement establishing joint control over the mine through required unanimous consent of the Company and De Beers Canada Inc. (“De Beers” or the “Operator”, and together with the Company, the “Participants”) for strategic, financial and operating policies of the GK Mine. The GK Mine management committee has two representatives of each of the Company and De Beers. The Participants have appointed De Beers as the operator of the GK Mine.

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Disclosure Of Significant Accounting Policies [Abstract]
Significant Accounting Policies	3. SIGNIFICANT ACCOUNTING POLICIES (i) Foreign currency The functional currency of the Company and its subsidiaries is the Canadian Dollar. In preparing the consolidated financial statements, transactions in currencies other than the Company’s functional currency are recognized at the rates of exchange prevailing at the dates of the transactions. At the end of each reporting period, monetary items denominated in foreign currencies are re-translated Non-monetary Exchange differences are recognized in profit or loss in the period in which they arise and presented in the consolidated statements of comprehensive loss. (ii) Share-based payments The Company maintains a Restricted Share Unit (“RSU”), Deferred Share Unit (“DSU”) and stock option plan for employees, directors, and other qualified individuals. Equity-settled transactions, which include RSUs, DSUs and stock options, are measured by reference to their fair value at the grant date. The fair values for RSU’s and DSU’s are determined using the market value of the share price, as listed on the TSX, at the close of business at the grant date. The fair value for stock options is determined using a Black-Scholes option pricing model, which relies on estimates of the future risk-free interest rate, future dividend payments, future share price volatility and the expected average life of options. The Company believes this model adequately captures the substantive features of the option awards, and is appropriate to calculate their fair values. The fair value determined for both RSUs and stock options at grant date is recognized over the vesting period in accordance with the vesting terms and conditions, with a corresponding increase to share-based payments reserve. Equity-settled share-based payments to employees and others providing similar services are measured at the fair value of the equity instruments at the grant date. The fair value determined at the grant date of the equity-settled share-based payments is expensed in profit or loss over the vesting period, if any, which is the period during which the employee becomes unconditionally entitled to equity instruments. At the end of each reporting period, the Company revises its estimate of the number of equity instruments expected to vest, if any. (iii) Income taxes and deferred taxes The income tax expense or benefit for the year consists of two components: current and deferred. Current tax is the expected tax payable or receivable on the taxable profit or loss for the year. Current tax is calculated using tax rates and laws that were enacted or substantively enacted at the balance sheet date in each of the jurisdictions and includes any adjustments for taxes payable or recovery in respect of prior periods. Taxable profit or loss differs from profit or loss as reported in the Consolidated Statements of Comprehensive Income because of items of income or expenses that are taxable or deductible in other years, and items that are never taxable or deductible. Deferred tax is recognized on temporary differences between the carrying amounts of assets and liabilities in the consolidated financial statements and the corresponding tax bases used in the computation of taxable profit. Deferred tax liabilities are generally recognized for all taxable temporary differences. Deferred tax assets are generally recognized for all deductible temporary differences, loss carryforwards and tax credit carryforwards to the extent that it is probable that taxable profits will be available against which they can be utilized. To the extent that the Company does not consider it to be probable that taxable profits will be available against which deductible temporary differences, loss carryforwards, and tax credit carryforwards can be utilized, a deferred tax asset is not recognized. Deferred tax assets and liabilities are not recognized if the temporary difference arises from the initial recognition (other than in a business combination) of assets and liabilities in a transaction that affects neither the taxable profit nor the accounting profit. Deferred tax liabilities are recognized for taxable temporary differences associated with investments in subsidiaries, except where the Company is able to control the reversal of the temporary difference and it is probable that the temporary difference will not reverse in the foreseeable future. Deferred 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 profits against which to utilize the benefits of the temporary differences and they are expected to reverse in the foreseeable future. Deferred tax assets and liabilities are measured at the tax rates that are expected to apply in the period in which the liability is settled or the asset realized, based on tax rates (and tax laws) that have been enacted or substantively enacted by the end of the reporting period. The measurement of deferred tax liabilities and assets reflects the tax consequences that would follow from the manner in which the Company expects, at the end of the reporting period, to recover or settle the carrying amount of its assets and liabilities. Deferred tax assets and liabilities are offset when there is a legally enforceable right to set off deferred tax assets against deferred tax liabilities and when they relate to income taxes levied by the same taxation authority and the Company intends to settle its deferred tax assets and liabilities on a net basis. Current and deferred taxes are recognized in profit or loss, except when they relate to items that are recognized in other comprehensive income or directly in equity, in which case, the current and deferred taxes are also recognized in other comprehensive income or directly in equity, respectively. (iv) Mineral properties and exploration and evaluation costs and development costs Exploration and evaluation (“E&E”) costs are those costs required to find a mineral property and determine commercial viability and technical feasibility. E&E costs include costs to establish an initial mineral resource and determine whether inferred mineral resources can be upgraded to measured and indicated mineral resources and whether measured and indicated mineral resources can be converted to proven and probable reserves. Exploration and evaluation costs consist of: ● gathering exploration data through topographical and geological studies; ● exploratory drilling, trenching and sampling; ● determining the volume and grade of the resource; ● test work on geology, metallurgy, mining, geotechnical and environmental; and ● conducting and refining engineering, marketing and financial studies. Costs in relation to these activities are expensed as incurred until such time that the technical feasibility and commercial viability of extracting the mineral resource are demonstrable. At such time, mineral properties are assessed for impairment, and an impairment loss, if any, is recognized, and future development costs will be capitalized to assets under construction. The key factors management used in determining technical feasibility and commercial viability were the following; ● completion of a feasibility study; ● obtaining required permits to construct the mine; ● completion of an evaluation of the financial resources required to construct the mine; ● availability of financial resources necessary to commence development activities to construct the mine; and ● management’s determination that a satisfactory return on investment, in relation to the risks to be assumed, is likely to be obtained. The Company also recognizes exploration and evaluation costs as assets when acquired as part of a business combination, or asset purchase, or as a result of rights acquired relating to a mineral property. (v) Impairment of non-financial The carrying value of the Company’s capitalized property, plant and equipment, and exploration and evaluation assets are assessed for impairment when indicators of potential impairment are identified to exist. If any indication of impairment is identified, an estimate of the asset’s recoverable amount is calculated to determine the extent of the impairment loss, if any. The recoverable amount is determined as the higher of the fair value less costs of disposal for the asset and the asset’s value in use. In assessing value in use, the estimated future cash flows are discounted to their present value using a discount rate that reflects current market assessments of the time value of money and the risks specific to the asset for which the estimates of future cash flows have not been adjusted. Impairment is determined on an asset by asset basis, whenever possible. If it is not possible to determine impairment on an individual asset basis, then impairment is considered on the basis of a cash generating unit (“CGU”). CGUs represent the lowest level for which there are separately identifiable cash inflows that are largely independent of the cash flows from other assets or the Company’s other group of assets. The Company has determined that it has two CGUs. If the carrying amount of the asset exceeds its recoverable amount, the asset is impaired and an impairment loss is charged immediately to profit or loss so as to reduce the carrying amount to its recoverable amount. (vi) Capitalized interest Interest costs for qualifying assets are capitalized. Qualifying assets are assets that require a significant amount of time to prepare for their intended use, including projects that are in development or construction stages. Capitalized interest costs are considered an element of the cost of the qualifying asset. Capitalization ceases when the asset is substantially complete or if active development is suspended or ceases. Where funds borrowed are directly attributable to a qualifying asset, the amount capitalized represents the borrowing costs specific to those borrowings. (vii) Provisions Provisions represent liabilities to the Company for which the amount or timing is uncertain. Provisions are recognized when the Company has a present legal or constructive obligation as a result of past events, it is probable that an outflow of resources will be required to settle the obligation, and the amount can be reliably estimated. Provisions are not recognized for future operating losses. Provisions are measured at the present value of the expected expenditures to settle the obligation, applying a pre-tax The Company records as decommissioning and restoration liability the present value of estimated costs of legal and constructive obligations required to restore locations in the period in which the obligation is incurred. The nature of these decommissioning and restoration activities includes dismantling and removing structures, rehabilitating mines and tailings dams, dismantling operating facilities, closure of plant and waste sites, and restoration, reclamation and re-vegetation The obligation generally arises when the asset is installed or the ground and/or environment is disturbed at the production location. When the liability is initially recognized, the present value of the estimated cost is capitalized if the Company has a related asset on its balance sheet, or expensed. Costs for restoration of subsequent site damage which is created on an ongoing basis during production are provided for at their net present values and is added to inventory, and then in production costs as inventory is sold. Over time, the discounted liability is increased for the change in present value. The periodic unwinding of the discount is recognized in profit or loss as a finance cost called “accretion expense on decommissioning and restoration liability”. Additional disturbances or changes in rehabilitation costs will be recognized as additional capitalized costs (or exploration and evaluation expense depending on whether there was a related asset when the liability was initially recognized) and additional decommissioning and restoration liability when they occur. If it is determined that the expected costs for decommissioning and restoration are reduced, the change in the present value of the reduction is recorded as a reduction in the capitalized costs (expensed), and a reduction of the decommissioning and restoration liability. (viii) Loss or earnings per share Basic loss or earnings per share is calculated by dividing loss or earnings attributable to common shares by the weighted average number of shares outstanding during the year. Diluted loss or earnings per share is calculated using the denominator of the basic calculation described above adjusted to include the potentially dilutive effect of outstanding stock options. The denominator is increased by the weighted average number of common shares outstanding after adjustment for the effects of all dilutive potential common shares. (ix) Revenue recognition The Company utilizes a sales agent to facilitate the sale of rough and/or fancies and specials diamonds to the end-customer. As outlined in the joint venture agreement between the Company and De Beers Canada, fancies and specials diamonds produced at the GK mine are subject to a bid process. When De Beers is the successful bidder, the Company recognizes 49% of the bid price as revenue at the completion of the bid process, as De Beers receives the fancies and specials diamonds and the Company is paid immediately for its share by De Beers. As outlined in the Dunebridge Sales Agreement (Note 16), the Company recognizes revenue when consideration has been received by the Company, which represents the completion of the performance obligations of the Company and when control is passed to Dunebridge. The agreement contemplates the potential for upside revenue, after fees and expenses, which gives rise to the potential variable consideration within the first three years. The upside variable consideration is only recognized on a net basis, when it can be estimated reliably, is not constrained by external factors out of the Company’s control, and is highly probable that a significant reversal of the amount will not occur in the future. (x) Property, plant and equipment Property, plant and equipment are stated at cost less accumulated amortization and accumulated impairment losses. Cost comprises the fair value of consideration given to acquire an asset and includes the direct charges associated with bringing the asset to the location and condition necessary to put the asset into use, as well as the future cost of dismantling and removing the asset. When parts of an item of property, plant and equipment have different useful lives, they are accounted for as separate items (major components) of property, plant and equipment. Replacement cost, including major inspection and overhaul expenditures are capitalized for components of property, plant and equipment, which are accounted for separately. Development costs are capitalized under assets under construction. Expenditures, including engineering to design the size and scope of the project, environmental assessment and permitting and borrowing costs are capitalized to assets under construction. Amortization is provided on property, plant and equipment. Amortization is calculated so as to allocate the cost of each asset over its expected useful life to its estimated residual value. The estimated useful lives, residual values and amortization method are reviewed at the end of each annual reporting period. Mineral properties are not amortized until the properties to which they relate are placed into commercial production, at which time the costs will be amortized on a unit-of-production Upon entering commercial production stage, capitalized costs associated with the acquisition of the mineral property or the development of the mine, are amortized using the various methods based in the asset categories as follows: Corporate assets two to seven years, straight line Vehicles three to five years, straight line Production and related equipment units of production over proven and probable reserves General infrastructure units of production over proven and probable reserves Earthmoving equipment straight line over shorter of life of mine or life of the asset Mineral properties units of production over proven and probable reserves Assets under construction not depreciated until ready for use (xi) Inventories Inventories are recorded at the lower of cost and net realizable values. Net realizable value is the estimated selling price in the ordinary course of business, less estimated costs of completion. An impairment adjustment is made when the carrying amount is higher than the net realizable value. Rough diamonds classified as finished goods comprise diamonds that have been subject to the sorting process. Cost is determined on a weighted average cost per carat basis including production costs and value-added processing activity. As outlined in the joint venture agreement between the Company and De Beers Canada, fancies and special diamonds produced at the GK Mine are subject to a bid process. Upon a successful bid by the Company, the fancies and specials diamonds will be included in inventories and 51% of the bid amount will be paid to De Beers and capitalized to the cost of inventory. Cost for fancies and specials diamonds is determined on a weighted average cost basis including production costs and value-added processing activity plus the direct cost of acquiring the fancies and specials diamonds from De Beers. Stockpiled ore represents coarse ore that has been extracted from the mine and is available for future processing. Stockpiled ore value is based on costs incurred in bringing ore to the stockpile. Costs are added to the stockpiled ore based on current mining costs per tonne and are removed at the average cost per tonne of ore in the stockpile. Supplies inventory are consumable materials which are measured at the lower of weighted average cost and net realizable value. (xii) Capitalized stripping costs In open pit mining operations, it is necessary to remove overburden and other waste materials to access ore from which minerals can be extracted economically. The process of removing overburden and waste materials is referred to as stripping. Stripping costs incurred in order to provide initial access to the ore body (referred to as pre-production It may be also required to remove waste materials and to incur stripping costs during the production phase of the mine. The Company recognizes a stripping activity asset if all of the below conditions are met: ● It is probable that the future economic benefit (improved access to the component of the ore body) associated with the stripping activity will flow to the Company. ● The Company can identify the component of the ore body for which access has been improved. ● The costs relating to the stripping activity associated with that component can be measured reliably. The Company measures the stripping activity at cost based on an accumulation of costs incurred to perform the stripping activity that improves access to the identified component of ore, plus an allocation of directly attributable costs. The waste to ore strip ratio projected for the life of the specific orebody must be exceeded for the costs to be capitalized as stripping costs. After initial recognition, the stripping activity asset is carried at cost less depreciation and impairment losses in the same way as the existing asset of which it is a part. The stripping activity asset is depreciated over the expected useful life of the identified components of the ore body that becomes more accessible as a result of the stripping activity using the units of production method. (xiii) Financial Instruments Classification The Company classifies its financial instruments in the following categories: at fair value through profit and loss (“FVTPL”), at fair value through other comprehensive income (“FVTOCI”) or at amortized cost. The Company determines the classification of financial assets at initial recognition. The classification of debt instruments is driven by the Company’s business model for managing the financial assets and their contractual cash flow characteristics. Financial liabilities are measured at amortized cost unless they are required to be measured at FVTPL (such as instruments held for trading or derivatives) or the Company has opted to measure them at FVTPL. Asset/Liability Classification Cash Amortized cost Equity securities FVTOCI Amounts receivable Amortized cost Derivative assets FVTPL Accounts payable and accrued liabilities Amortized cost Dunebridge revolving credit facility Amortized cost Secured notes payable Amortized cost Measurement Financial assets at FVTOCI Elected investments in equity instruments at FVTOCI are initially recognized at fair value plus transaction costs. Subsequently they are measured at fair value, with gains and losses arising from changes in fair value recognized in other comprehensive income. Financial assets and liabilities at amortized cost Financial assets and liabilities at amortized cost are initially recognized at fair value, plus transaction costs, and subsequently carried at amortized cost less any impairment. Financial liabilities carried at amortized cost utilize 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 (including all fees and points paid or received that form an integral part of the effective interest rate, transaction costs and other premiums or discounts) through the expected life of the financial liability, or where appropriate, a shorter period, to the net carrying amount on initial recognition. Financial assets and liabilities at FVTPL Financial assets and liabilities carried at FVTPL are initially recorded at fair value and transaction costs are expensed in the consolidated statements of comprehensive loss. Realized and unrealized gains and losses arising from changes in the fair value of the financial assets and liabilities held at FVTPL are included in the consolidated statements of comprehensive loss in the period in which they arise. Derivative asset (liabilities) related to foreign currency contracts, which become realized, are reclassified from derivative gains and losses into realized foreign exchange gains and losses. Financial assets The Company derecognizes financial assets only when the contractual rights to cash flows from the financial assets expire, or when it transfers the financial assets and substantially all the associated risks and rewards of ownership to another entity. Gains and losses on derecognition are generally recognized in the consolidated statements of comprehensive loss. However, gains and losses on derecognition of financial assets classified as FVTOCI are reclassified to retained earnings (deficit) as a reclassification within equity. Financial liabilities The Company derecognizes financial liabilities only when its obligations under the financial liabilities are discharged, cancelled, or expired. The difference between the carrying amount of the financial liability derecognized and the consideration paid and payable, including any non-cash (xiv) Leases At inception of a contract, the Company assesses whether a contract is, or contains, a lease based on whether the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. The Company has elected not to recognize right-of-use low-value The Company recognizes a right-of-use asset and the associated lease liability at the lease commencement date. The right-of-use asset is initially measured based on the initial amount of the lease liability adjusted for any lease payments made at or before the commencement date, plus any initial costs incurred and an estimate of cost to remove the underlying asset, less any lease incentives received. Lease payments included in the measurement of the lease liability are comprised of amounts expected to be payable by the Company under residual value guarantees, and the exercise price of a purchase option if the Company is reasonably certain to exercise that option. The right-of-use asset is subsequently measured at cost, less any accumulated depreciation and any accumulated impairment losses, and adjusted for any remeasurement of the lease liability. The assets are depreciated using the lower of the useful life of the right-of-use asset or the lease term, using the straight-line method. The lease liabilities are initially measured at the present value of the lease payments that are not paid at the commencement date, discounted using the interest rate implicit in the lease, or if the rate cannot be readily determined, the Company’s incremental borrowing rate. The lease liabilities are subsequently measured at amortized cost using the effective interest rate method. Each lease payment is allocated between the lease liability and finance cost. The finance cost is charged to net income over the lease period so as to produce a constant periodic rate of interest on the remaining balance of the liability for each period. (xv) Government grants and assistance Government grants and assistance related to expenses are presented as part of comprehensive loss, as a deduction to the related expense in the reporting period.

Significant Accounting Judgment

Significant Accounting Judgments Estimates and Assumptions	12 Months Ended
	Dec. 31, 2020
Disclosure Of Accounting Judgements And Estimates Assumptions [Abstract]
Significant Accounting Judgments Estimates and Assumptions	4. SIGNIFICANT ACCOUNTING JUDGMENTS, ESTIMATES AND ASSUMPTIONS The preparation of these financial statements requires management to make judgments, estimates and assumptions that affect the application of accounting policies and the reported amounts of assets, liabilities and contingent liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting periods. Judgments, estimates and assumptions are continually 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 materially from these estimates. The key areas where judgments, estimates and assumptions have been made are summarized below. (i) Significant judgments in applying accounting policies The areas which require management to make significant judgments in applying the Company’s accounting policies are: a) Impairment analysis – property, plant and equipment and evaluation and exploration assets As required under IAS 36 and IFRS 6, the Company reviews its property, plant and equipment and its evaluation and exploration assets for impairment based on results to date and when events and changes in circumstances indicate that the carrying value of the assets may not be recoverable. The Company is required to make certain judgments in assessing indicators of impairment. The Company’s assessment was that as at December 31, 2020 and 2019, indicators of impairment existed. The indicators were that the enterprise value was significantly below the total assets, combined with a market capitalization significantly lower than the net assets of the Company. These conditions have been present for a prolonged period of time. b) Revenue recognition – variable consideration The Company is required to make certain judgments in assessing the variable consideration in relation to the revenue recognition related to transactions under the Dunebridge Sales Agreement (Note 16). The Company has applied judgment to determine whether it is highly probable that a significant reversal of the amount will not occur in the future. This is an area of significant judgment as the amount of consideration is highly susceptible to factors outside of the Company’s control, including but not limited to the uncertainty over the COVID-19 ii) Significant accounting estimates and assumptions The areas which require management to make significant estimates and assumptions in determining carrying values include, but are not limited to: a) Mineral reserves and resources Mineral reserve and resource estimates include numerous uncertainties and depend heavily on geological interpretations and statistical inferences drawn from drilling and other data, and require estimates of the future price for the commodity and future cost of operations. The mineral reserve and resources are subject to uncertainty and actual results may vary from these estimates. Results from drilling, testing and production, as well as material changes in commodity prices and operating costs subsequent to the date of the estimate, may justify revision of such estimates. Changes in the proven and probable mineral reserves or measured and indicated and inferred mineral resources estimates may impact the carrying value of the properties. This will also impact the carrying value of the decommissioning and restoration liability and future depletion charges. b) Provision for decommissioning and restoration The decommissioning and restoration liability and the accretion recorded are based on estimates of future cash flows, discount rates, and assumptions regarding timing. The estimates are subject to change and the actual costs for the decommissioning and restoration liability may change significantly. Significant assumptions exist for the determination of what constitutes decommissioning and restoration. Judgment has been applied by management to determine which decommissioning and restoration costs have been appropriately capitalized to inventory, based on the nature of the costs incurred upon reaching commercial production. c) Deferred taxes Deferred income tax assets and liabilities are determined based on differences between the financial reporting and tax bases of assets and liabilities and on unused losses carried forward, and are measured using the substantively enacted tax rates that are expected to be in effect when the differences are expected to reverse or losses are expected to be utilized. Deferred tax assets are recorded to recognize tax benefits only to the extent that, based on available evidence, including forecasts which include taxable profits, it is probable that they will be realized. Significant judgment is involved in determining when an adequate track record has been established to support the accuracy of the assumptions related to the forecasts of taxable profits.

Amounts Receivable

Amounts Receivable	12 Months Ended
	Dec. 31, 2020
Disclosure Of Amounts Receivable [Abstract]
Amounts Receivable	5. AMOUNTS RECEIVABLE December 31, 2020 December 31, 2019 GST/HST receivable $ 604 $ 936 Other receivable 193 752 Total $ 797 $ 1,688

Inventories

Inventories	12 Months Ended
	Dec. 31, 2020
Disclosure Of Inventories Explanatory [Abstract]
Inventories	6. INVENTORIES December 31, 2020 December 31, 2019 Ore stockpile $ 9,203 $ 8,592 Rough diamonds 48,036 70,190 Supplies inventory 33,267 32,990 Total $ 90,506 $ 111,772 Depreciation and depletion included in inventories at December 31, 2020 is $13,663 (December 31, 2019 - $23,894). The amount of inventory expensed approximates cost of sales with respect to production costs incurred, and the cost of acquired diamonds. Included in inventories and production costs, for the year ended December Included in this number is the offset of $7,238 (2019 - $Nil) related to government assistance provided by the Canada emergency wage subsidy.

Property, Plant And Equipment

Property, Plant And Equipment	12 Months Ended
	Dec. 31, 2020
Disclosure of detailed information about property, plant and equipment [abstract]
Property, Plant and Equipment	7. PROPERTY, PLANT AND EQUIPMENT The Company’s property, plant and equipment as at December 31, 2020 and 2019 are as follows: Property, Assets under Property, equipment KNP Exploration and evaluation assets KNP Assets under Total Cost At January 1, 2019 $ 820,106 $ 4,894 $ 90 $ 166,947 $ 1,564 $ 993,601 Decommissioning and restoration adjustment (1,604 ) - - 1,919 - 315 January 1, 2019 IFRS 16 lease additions 2,670 - - - - 2,670 Additions/transfers* 35,162 (4,164 ) - - - 30,998 At December 31, 2019 856,334 730 90 168,866 1,564 1,027,584 Decommissioning and restoration adjustment 9,777 - - 278 - 10,055 Additions/transfers* 36,334 5,776 - - - 42,110 At December 31, 2020 $ 902,445 $ 6,506 $ 90 $ 169,144 $ 1,564 $ 1,079,749 Accumulated depreciation At January 1, 2019 $ (152,350 ) $ - $ (10 ) $ - $ - $ (152,360 ) Depreciation and depletion** (87,190 ) - (13 ) - - (87,203 ) Impairment loss (115,753 ) - - - - (115,753 ) At December 31, 2019 (355,293 ) - (23 ) - - (355,316 ) Depreciation and depletion** (55,643 ) - (13 ) - - (55,656 ) Impairment loss (217,366 ) - - - - (217,366 ) At December 31, 2020 $ (628,302 ) $ - $ (36 ) $ - $ - $ (628,338 ) Carrying amounts At December 31, 2019 $ 501,041 $ 730 $ 67 $ 168,866 $ 1,564 $ 672,268 At December 31, 2020 $ 274,143 $ 6,506 $ 54 $ 169,144 $ 1,564 $ 451,411 *Included in additions of property, plant and equipment for GK is $28,939 (2019 - $23,896) related to deferred stripping of which $1,781 relates to the depreciation of earthmoving equipment (2019 - $1,778). **Included in depreciation and depletion is $797 of depreciation on the right-of-use After the Company assessed for impairment, as at December 31, 2020 and 2019, it was determined that an impairment loss of $217,366 and $115,753, respectively, on property, plant and equipment occurred. The impairment losses are specific to the GK Mine CGU. The GK Mine CGU’s recoverable amount of $281.6 million as at December 31, 2020 (2019 - $510.1 million) was determined using the fair value less cost of disposal, which was calculated based on projected future cash flows utilizing the latest information available and Management’s estimates, including; estimated future diamond prices, discount rates, foreign exchange rates, production levels and costs used to determine future cash flows . For the assessment at December 31, 2020, these projected cash flows were prepared using a 2.5% real growth escalation factor for 2021 and a 2.5% real growth escalation factor on diamond pricing thereafter, and discounted using a post-tax discount rate of 8.4% on cash flows from proven and probable mineral reserves and converted resources, representing the estimated weighted average cost of capital. For the assessment at December 31, 2019, these projected cash flows were prepared using a 0% real growth escalation factor for 2020 and a 2.5% real growth escalation factor on diamond pricing thereafter, and discounted using a post-tax discount rate of 7.55% on cash flows from proven and probable mineral reserves and converted resources, representing the estimated weighted average cost of capital. These rates were estimated based on the capital asset pricing model where the costs of equity were based on, among other things, estimated interest rates, market returns on equity, share volatility, leverage and risks specific to the mining sector and the GK Mine CGU. The valuation is considered to be level 3 in the fair value hierarchy due to unobservable inputs. Sensitivities For the assessment at December 31, 2020, the projected cash flows and estimated fair value less cost of disposal can be affected by any one or more changes in the estimates used. Changes in diamond price per carat, the real growth escalation factor on diamond pricing and the discount rate have the most substantial influence on the GK Mine CGU’s valuation. A 10% increase in diamond price per carat would change the fair value less cost to sell by approximately $123 million (2019- 131 million). A 0.5% increment in the real growth escalation factor on diamond pricing would change the fair value less cost of disposal by approximately $29 million (2019 – 29 million). A 0.5% increment in the discount rate would change the fair value less cost of disposal by approximately $5 million (2019 - $11 million). If the GK Mine CGU were to continue to operate at current diamond pricing levels, there would be a further impairment charge.

Decommissioning And Restoration

Decommissioning And Restoration Liability	12 Months Ended
	Dec. 31, 2020
Disclosure Of Decommissioning And Restoration Liability [Abstract]
Decommissioning and Restoration Liability	8. DECOMMISSIONING AND RESTORATION LIABILITY The decommissioning and restoration liability represents the liabilities for both the GK Mine and the Kennady North Project, which are broken down separately below. The GK Mine decommissioning and restoration liability was calculated using the following assumptions as at December 31, 2020 and 2019: December 31, 2020 December 31, 2019 Expected undiscounted cash flows $ 61,558 $ 58,965 Discount rate 0.67% 1.76% Inflation rate 2.00% 1.35% Periods 2030 2029 The Kennady North Project decommissioning and restoration liability was calculated using the following assumptions as at December 31, 2020 and 2019: December 31, 2020 December 31, 2019 Expected undiscounted cash flows $ 2,268 $ 2,235 Discount rate 0.25% 3.71% Inflation rate 2.00% 1.96% Periods 2024 2023 The decommissioning and restoration liability has been calculated using expected cash flows that are current dollars, with inflation. During the year ended December 31, 2020, the decommissioning and restoration liability was increased by $13,364 (2019 - $2,490) due to additional disturbance related to ongoing mining activity as well as changes in the discount and inflation rates. The continuity of the decommissioning and restoration liability at December 31, 2020 and 2019 is as follows: GK Mine KNP Total Balance, at January 1, 2019 $ 54,756 $ 166 $ 54,922 Change in estimate of discounted cash flows 571 1,919 2,490 Accretion recorded during the year 1,102 2 1,104 Balance, at December 31, 2019 $ 56,429 $ 2,087 $ 58,516 Less: current portion of decommissioning and restoration liability 2,445 - 2,445 Non-current decommissioning and restoration liability, at December 31, 2019 $ 53,984 $ 2,087 $ 56,071 Change in estimate of discounted cash flows 13,086 278 13,364 Accretion recorded during the year 976 76 1,052 Balance, at December 31, 2020 $ 70,491 $ 2,441 $ 72,932 Less: current portion of decommissioning and restoration liability 2,489 - 2,489 Non-current decommissioning and restoration liability, at December 31, 2020 $ 68,002 $ 2,441 $ 70,443

Secured Notes Payable

Secured Notes Payable	12 Months Ended
	Dec. 31, 2020
Disclosure of secured notes payable [Abstract]
Secured Notes Payable	9. SECURED NOTES PAYABLE On December 11, 2017, the Company completed an offering of US$330 million of senior secured notes (“Notes”), December 15, 2022 As at December 31, 2020, the Company has an obligation for US$299.9 million or $381.7 million Canadian dollar equivalent from the secured notes payable (December 31, 2019 -US$299.9 million December 31, 2020 December 31, 2019 Total outstanding secured notes payable $ 381,674 $ 389,262 Less: unamortized deferred transaction costs and issuance discount 6,968 10,393 Total secured notes payable $ 374,706 $ 378,869 During the year ended December 31, 2020, no secured notes payable were purchased by the Company from investors (2019, US$10 million or approximately $13.2 million Canadian dollar equivalent). The secured notes payable is carried at amortized cost on the consolidated balance sheet. Revolving Credit Facility Concurrent with the closing of the Notes offering, the Company entered into a US$50 million first ranking lien revolving credit facility with the Bank of Nova Scotia (“Scotiabank”) and Nedbank Ltd. in order to maintain a liquidity cushion for general corporate purposes. The RCF had a term of three years and the Company was subject to a quarterly commitment fee between 0.9625% and 1.2375%, depending on certain leverage ratio at the time. Upon drawing on the RCF, an interest rate of LIBOR plus 2.5% to 4.5% per annum would be charged for the number of days the funds are outstanding, based on certain leverage ratio at the time. During the second quarter of 2020, the Company withdrew million from the RCF in order to maintain the liquidity of the business during the challenges faced by COVID-19. On September 30, 2020, the RCF with Scotiabank and Nedbank Ltd. was assigned to Dunebridge. The amount drawn at the time of million under the new Dunebridge RCF was advanced to the Company. The Dunebridge RCF terms are described in Note 10 below.

Dunebridge Revolving Credit Fac

Dunebridge Revolving Credit Facility	12 Months Ended
	Dec. 31, 2020
Borrowings [abstract]
Dunebridge Revolving Credit Facility	10. DUNEBRIDGE REVOLVING CREDIT FACILITY On September 30, 2020, the Company entered into the Dunebridge RCF (Note 16) for US$25 million, with first ranking lien terms. The Dunebridge RCF carries an interest rate of 5% per annum, and is repayable on September 30, 2021, therefore has been classified as short-term on the balance sheet. Interest is payable on a monthly basis. The agreement also required an upfront 1% financing fee, which was paid on September 30, 2020. The Dunebridge RCF is not subject to any financial covenants to remain available. A default would occur if the Company is unable to make these monthly interest payments, or the principal repayment. The Dunebridge RCF includes various restrictive covenants that requires no additional indebtedness be entered into, and no new agreements related to the sale of Diamonds, beyond what currently exists, without prior written approval from Dunebridge. Under the Dunebridge RCF, permitted distributions to third parties (which include dividends) are subject to the Company having a net debt to EBITDA ratio of less than or equal to 1.75:1. Net debt is equal to total debt, less cash and cash equivalents. The aggregate amount of all distributions paid during the rolling four quarters up to and including the date of such distribution does not exceed 25% of free cash flows (“FCF”) during such period. FCF is defined as EBITDA minus, without duplication, (a) capital expenditures, (b) cash taxes, (c) any applicable standby fee, other fees or finance costs payable to the finance parties in connection with the Dunebridge RCF, (d) interest expenses and (e) any indebtedness (including mandatory prepayments) permitted under the existing agreement. Also, the available liquidity after payment of a distribution must be greater than or equal to US$ million for distributions paid during a quarter ending March 31, or US$ million for other quarters, where the aggregate amount of the all advances outstanding does not exceed US$ The Dunebridge RCF payable is carried at amortized cost on the consolidated balance sheet.

Net Finance Expenses

Net Finance Expenses	12 Months Ended
	Dec. 31, 2020
Disclosure Of Net Finance Income Expense Explanatory [Abstract]
Net Finance Expenses	11. NET FINANCE EXPENSES Year ended December 31, 2020 Year ended December 31, 2019 Interest income $ 170 $ 521 Accretion expense on decommissioning and restoration liability (1,052 ) (1,104 ) Interest expense (34,015 ) (33,048 ) Amortization of deferred financing costs (3,426 ) (3,726 ) Other finance costs* (1,674 ) (1,280 ) $ (39,997 ) $ (38,637 ) *Included in other finance costs for the year ended December 31, 2020 is $90 (2019 - $165) related to interest on lease liabilities.

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2020
Disclosure of Shareholder's Equity [Abstract]
Shareholders' Equity	12. SHAREHOLDERS’ EQUITY i. Authorized share capital Unlimited common shares, without par value. ii. Share capital The number of common shares issued and fully paid as at December 31, 2020 is 210,490,807. No dividends were declared and paid in the year ended December 31, 2020 and 2019. iii. Stock options, RSUs, DSUs and share-based payments reserve The Company has a long-term equity incentive plan (the “Plan”) which, among other things, allows for the maximum number of shares that may be reserved for issuance under the Plan to be 10% of the Company’s issued and outstanding shares at the time of the grant. The Board of Directors has the authority and discretion to grant stock option, RSU and DSU awards within the limits identified in the Plan, which includes provisions limiting the issuance of options to qualified persons and employees of the Company to maximums identified in the Plan. As at December 31, 2020, the aggregate maximum number of shares pursuant to options granted under the Plan will not exceed 21,049,081 shares. All stock options are settled by the issuance of common shares. The following table summarizes information about the stock options outstanding and exercisable: Year ended December 31, 2020 Year ended December 31, 2019 Number of options Weighted average exercise price Number of options Weighted average exercise price Balance at beginning of the year 3,518,335 $ 3.26 3,130,000 $ 4.17 Granted during the yea r - - 1,090,000 1.30 Expired during the year (980,000 ) 4.29 (600,000 ) 4.36 Forfeited during the year (83,333 ) 2.17 (101,665 ) 3.48 Balance at end of the year 2,455,002 $ 2.89 3,518,335 $ 3.26 Options exercisable at the end of the year 1,711,669 $ 3.51 1,972,223 $ 4.32 The fair value of the stock options granted have been estimated on the date of grant using the Black-Scholes option pricing model. The assumptions are presented below for options granted during the December 31, 2019 period. Expected volatility is calculated by reference to the weekly closing share price for a period that reflects the expected life of the options. The 1,090,000 stock options issued on December 27, 2019 vest 1/3 on December 27, 2020, 1/3 on December 27, 2021 and 1/3 on December 27, 2022. December 31, 2019 Exercise price $ 1.30 Expected volatility 43.33% Expected option life 5 years Contractual option life 5 years Expected forfeiture none Expected option cancellation none Expected dividend yield 0% Risk-free interest rate 1.64% The following tables reflect the number of stock options outstanding, the weighted average of stock options outstanding, and the exercise price of stock options outstanding at December 31, 2020. The Black-Scholes values are measured at the grant date. At December 31, 2020 Expiry Date Black-Scholes Value Number of Options Number of Exercisable Options Exercise Price June 30, 2021 120 100,000 100,000 6.35 November 3, 2021 214 100,000 100,000 6.96 February 5, 2022 171 100,000 100,000 5.86 December 21, 2022 931 875,002 875,002 3.48 June 30, 2023 203 200,000 133,333 3.30 June 30, 2023 41 40,000 40,000 3.30 December 27, 2024 416 1,040,000 363,334 1.30 $ 2,096 2,455,002 1,711,669 $ 2.89 Subsequent to the year ended December 31, 2020, 1,085,000 stock options were granted, with an exercise price of $0.65, and a fair value of $344. The weighted average remaining contractual life of the options outstanding at December 31, 2020 is 2.72 years (2019 - 2.86 years). The restricted and deferred share unit plans are full value phantom shares that mirror the value of the Company’s publicly traded common shares. Grants under the RSU and DSU plan are made on a discretionary basis to qualified persons and employees of the Company subject to the Board of Directors’ approval. Under the RSU and DSU plan, RSUs vest according to the terms set out in the award agreement which are determined on the initial grant date on an individual basis at the discretion of the Board of Directors. Vesting under the RSU and DSU plan is subject to special rules for death, disability and change in control. The awards can be settled through issuance of common shares or paid in cash, at the discretion of the Board of Directors. These awards are accounted for as equity settled RSUs. The fair value of each RSU issued is determined at the closing share price on the grant date. The following table shows the RSU awards which have been granted and settled during the year: December 31, 2020 December 31, 2019 RSU Number of units Weighted average value grant date fair value Number of units Weighted average value grant date fair value Balance at beginning of year 1,065,000 $ 1.31 368,997 $ 5.01 Awards and payouts during the year (net): RSUs awarded - - 990,000 1.13 RSUs settled and common shares issued (98,334) 2.79 (289,997) 5.35 RSUs forfeited (103,333) 1.36 (4,000) 6.49 Balance at end of the year* 863,333 $ 1.13 1,065,000 $ 1.31 *As at December 31, 2020, 287,778 RSUs (2019, 16,667 RSUs) have vested and have not yet been settled. Subsequent to the year ended December 31, 2020, 1,000,000 RSUs were granted with a fair value of $0.64 per unit. No DSU awards have been granted to date, therefore as at December 31, 2020 there are no DSUs outstanding. The share-based payments recognized as an expense for the year ended December 31, 2020 and 2019 are as follows: Year ended Year ended December 31, 2020 December 31, 2019 Expense recognized in the year for share-based payments $ 983 $ 789 The share-based payment expense for the year ended December 31, 2020 and 2019 is included in selling, general and administrative expenses. iv. Loss per share The following table sets forth the computation of basic and diluted loss per share: Year ended December 31, 2020 Year ended December 31, 2019 Numerator Net loss for the year $ (263,429 ) $ (128,758 ) Denominator For basic - weighted average number of shares outstanding 210,406,658 210,134,192 Effect of dilutive securities - - For diluted - adjusted weighted average number of shares outstanding 210,406,658 210,134,192 Loss Per Share Basic $ (1.25 ) $ (0.61 ) Diluted $ (1.25 ) $ (0.61 ) For the year ended December 31, 2020, 2,455,002 stock options and 863,333 RSUs were not included in the calculation of diluted loss per share since to include them would be anti-dilutive (2019—3,518,335 stock options and 1,065,000 RSUs).

Selling, General And Administra

Selling, General And Administrative Expenses	12 Months Ended
	Dec. 31, 2020
Selling, General And Administrative Expenses
Selling, General And Administrative Expenses	13. SELLING, GENERAL AND ADMINISTRATIVE EXPENSES Year ended December 31, 2020 Year ended December 31, 2019 Selling and marketing $ 5,259 $ 6,219 General and administrative: Consulting fees and payroll 1,946 2,730 Share-based payment expense 983 789 Depreciation 218 218 Office and administration 878 608 Professional fees 2,588 1,032 Promotion and investor relations 428 322 Director fees 278 258 Transfer agent and regulatory fees 461 452 Travel 114 430 $ 13,153 $ 13,058

Derivative Assets And Liabiliti

Derivative Assets And Liabilities	12 Months Ended
	Dec. 31, 2020
Disclosure of Derivative Liabilities [Abstract]
Derivative Assets And Liabilities	14. DERIVATIVE ASSETS AND LIABILITIES The Notes ● in whole or in part at any time during the twelve-month period beginning on December 15, 2019 at a redemption price equal to 104% of the principal amount of the secured notes redeemed, plus accrued and unpaid interest to the date of redemption; ● in whole or in part at any time during the twelve-month period beginning on December 15, 2020 at a redemption price equal to 102% of the principal amount of the secured notes redeemed, plus accrued and unpaid interest to the date of redemption; and ● in whole or in part at any time during the twelve-month period beginning on December 15, 2021 at a redemption price equal to 100% of the principal amount of the secured notes redeemed, plus accrued and unpaid interest to the date of redemption. During 2020, the Company entered into foreign currency forward swap contracts to mitigate the risk that a devaluation of the U.S. dollar against the Canadian dollar would reduce the Canadian dollar equivalent of the U.S. dollar sales proceeds and the Company would not have sufficient Canadian dollar funds to contribute to the operations of the GK Mine. During the year ended December 31, 2020, all foreign currency forward swaps, previously entered into were settled, as a result of the RCF settlement in the year (Note 9). These derivatives have been classified as “non-hedge The following table presents the various derivatives as at December 31, 2020 and 2019: December 31, 2020 December 31 2019 Prepayment option embedded derivatives $ 185 $ 200 Foreign currency contract derivative assets - 587 185 787 Current portion of embedded derivatives 23 - Current portion of foreign currency contracts assets - 587 Current portion of derivative assets 23 587 Non-current derivative assets $ 162 $ 200 The following table presents amounts recognized in the Consolidated Statement of Comprehensive Loss for the year ended December 31, 2020 and 2019: Year ended Year ended December 31, 2020 December 31, 2019 Gain (loss) on derivative contracts - currency contracts $ 158 $ (163 ) Loss on prepayment option embedded derivative (31 ) (1,051 ) Total $ 127 $ (1,214 )

Financial Instruments

Financial Instruments	12 Months Ended
	Dec. 31, 2020
Disclosure of detailed information about financial instruments [abstract]
Financial Instruments	15. FINANCIAL INSTRUMENTS Fair value measurement The Company categorizes each of its fair value measurements in accordance with a fair value hierarchy. The fair value hierarchy establishes three levels to classify the inputs to valuation techniques used to measure fair value. Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 inputs are quoted prices in markets that are not active, quoted prices for similar assets or liabilities in active markets, inputs other than quoted prices that are observable for the asset or liability (for example, interest rate and yield curves observable at commonly quoted intervals, forward pricing curves used to value currency and commodity contracts and volatility measurements used to value option contracts), or inputs that are derived principally from or corroborated by observable market data or other means. Level 3 inputs are unobservable (supported by little or no market activity). The fair value hierarchy gives the highest priority to Level 1 inputs and the lowest priority to Level 3 inputs. The fair values of the amounts receivable and accounts payable and accrued liabilities approximate their carrying values due to the relatively short-term maturity of these financial instruments. The following table shows the carrying amounts and fair values of the Company’s financial assets and financial liabilities, including their levels in the fair value hierarchy. It does not include fair value information for financial assets and financial liabilities not measured at fair value if the carrying amount is a reasonable approximation of fair value. Carrying amount Fair value December 31, 2020 Assets at amortized cost Fair value through profit and loss Liabilities at amortized cost Total Level 1 Level 2 Level 3 Total Financial assets measured at fair value Derivative assets $ - $ 185 $ - $ 185 $ - $ 185 $ - $ 185 $ - $ 185 $ - $ 185 Financial assets not measured at fair value Cash $ 35,152 $ - $ - $ 35,152 35,152 - - 35,152 Restricted cash 15,019 - - 15,019 15,019 - - 15,019 Amounts receivable 797 - - 797 797 - - 797 $ 50,968 $ - $ - $ 50,968 Financial liabilities not measured at fair value Accounts payable and accrued liabilities $ - $ - $ 41,010 $ 41,010 41,010 - - 41,010 Dunebridge revolving credit facility - - 31,813 31,813 - 31,813 - 31,813 Secured notes payable - - 374,706 374,706 329,632 - - 329,632 $ - $ - $ 447,529 $ 447,529 Carrying amount Fair value December 31, 2019 Assets at Fair value through Liabilities at amortized cost Total Level 1 Level 2 Level 3 Total Financial assets measured at fair value Derivative assets $ - $ 787 $ - $ 787 $ - $ 787 $ - $ 787 $ - $ 787 $ - $ 787 Financial assets not measured at fair value Cash $ 34,751 $ - $ - $ 34,751 34,751 - - 34,751 Amounts receivable 1,688 - - 1,688 1,688 - - 1,688 $ 36,439 $ - $ - $ 36,439 Financial liabilities not measured at fair value Accounts payable and accrued liabilities $ - $ - $ 47,319 $ 47,319 47,319 - - 47,319 Secured notes payable - - 378,869 378,869 378,083 - - 378,083 $ - $ - $ 426,188 $ 426,188 Fair values of assets and liabilities classified as Level 2 are valued using discounted cash flow (“DCF”) models. These models require a variety of observable inputs including market prices, forward price curves, yield curves and credit spreads. These inputs are obtained from or verified with the market where possible. The financial assets relate to the embedded derivative assets, which are prepayment options on the secured notes payable (Note 9). Derivative instruments are valued using DCF models. These models require a variety of observable inputs including market prices, forward price curves and yield curves. These inputs are obtained from or verified with the market where possible. The fair value of the secured notes payable is determined using market quoted prices. Financial instruments risks The Company examines the various financial instrument risks to which it is exposed and assesses the impact and likelihood of those risks. These risks include credit risk, liquidity risk, market risk, foreign currency risk and interest rate risk. Credit risk Credit risk is the risk of financial loss to the Company if a customer or counterparty to a financial instrument fails to meet its obligations. The Company’s exposure to credit risk is for its amounts receivable of which all of the outstanding amounts of $797 and $1,688 as at December 31, 2020 and 2019, respectively, were collected. On December 31, 2020 and 2019, the Company does not have any allowance for doubtful accounts, and does not consider that any such allowance is necessary. All of the Company’s cash and restricted cash is held with a major Canadian financial institution and thus the exposure to credit risk is considered insignificant. Management actively monitors the Company’s exposure to credit risk under its financial instruments, including with respect to amounts receivable. The Company considers the risk of loss for its amounts receivable to be remote and significantly mitigated due to the financial strength of the parties from whom most of the amounts receivable are due - the Canadian government for harmonized sales tax (“HST”) refunds receivable in the amount of approximately $604 (2019 - $936). The Company’s current policy is to hold excess cash in bank accounts. It periodically monitors the investment income it makes and is satisfied with the credit ratings of its bank. Liquidity risk Liquidity risk is the risk that the Company will not be able to meet its obligations associated with financial liabilities. The Company’s approach to managing liquidity risk is to monitor forecast cash flows so that it will have sufficient liquidity to meet liabilities when due. The Company has a planning and budgeting process in place by which it anticipates and determines the funds required to support its ongoing requirements. The Company coordinates this planning and budgeting process with its financing activities through its capital management process. To achieve this, the Company relies on regular sales throughout the year, generally nine or ten tender sales, in addition to occasional sales of fancies and special diamonds to De Beers, in order to fund ongoing operations. Due to COVID-19, the Company expects that it may not be able to meet its obligations as they come due for ongoing operations. Due to the impact of COVID-19, US$100 million of diamonds to Dunebridge. The agreement permits the Company to sell its run of mine diamonds (below 10.8 carats) at the estimated prevailing market price at the time of each sale. As at December 31 , 2020 , approximately US$49.4 million of run of mine diamonds have been sold under the agreement. The agreement provides the Company with additional liquidity support, in the event that the traditional sales channel becomes disrupted, however it does not guarantee Dunebridge will purchase them. At present, COVID-19 potential future travel restrictions and lockdowns could inhibit the ability to carry on the normal sales in Antwerp, Belgium. Being able to maintain positive cash flows from operations and and/or maintain sufficient liquidity, is dependent upon many factors including, but not limited to, diamond prices, exchange rates, operating costs and levels of production. Adverse changes in one or more of these factors negatively impact the Company’s ability to comply with the covenants and/or maintain sufficient liquidity, all of which are subject to the effects of the ongoing COVID-19 (See Note 1). As at December 31, 2020, the Company has an obligation for US$299.9 million or $381.7 million Canadian dollar equivalent (2019 – US$299.9 million or $389.3 Canadian dollar equivalent) from the secured notes payable. The notes are secured by a second-priority lien on substantially all of the assets which includes the 49% participating rights to the GK Mine. The Dunebridge RCF is granted first priority, if amounts are drawn. Failure to meet the obligations of the secured notes payable as they come due may lead to the sale of the participating interest in the GK Mine. On September 30, 2020, the RCF with Scotiabank and Nedbank Ltd. was assigned to Dunebridge (Note 10 and 16). The following table summarizes the contractual maturities of the Company’s significant financial liabilities and capital commitments, including contractual obligations: Less than 1 to 3 4 to 5 After 5 1 Year Years Years Years Total Gahcho Kué Diamond Mine commitments $ 4,058 $ - $ - $ - $ 4,058 Gahcho Kué Diamond Mine decommissioning fund 10,000 20,000 10,000 - 40,000 Dunebridge revolving credit facility - Principal 31,813 - - - 31,813 Dunebridge revolving credit facility - Interest 1,193 - - - 1,193 Notes payable - Principal - 381,674 - - 381,674 Notes payable - Interest 30,958 30,958 - - 61,916 $ 78,022 $ 432,632 $ 10,000 $ - $ 520,654 Market risk Market risk is the risk that changes in market prices such as foreign exchange rates, interest rates and equity prices will affect the Company’s income and the value of its financial instruments. The objective of market risk management is to manage and control market risk exposures within acceptable parameters while optimizing returns. (i) Interest rate risk The Company does not have significant exposure to interest rate risk at December 31, 2020 and 2019, since the secured notes payable and Dunebridge RCF do not have variable interest rate s (ii) Foreign currency The Company is exposed to market risk related to foreign exchange rates. The Company operates in Canada and has foreign currency exposure to transactions in U.S. dollars. The majority of the ongoing operational costs of the GK Mine are in Canadian dollars, and are funded through operating cash flows. The Company’s operating cash flows include the sale, in U.S. dollars, of its 49% share of the GK Mine diamonds produced. As at December 31, 2020 and 2019, the Company had cash, derivative assets, accounts payable and accrued liabilities, the Dunebridge revolving credit facility and the secured notes payable that are in U.S. dollars. The Canadian dollar equivalent is as follows: December 31, December 31, 2020 2019 Cash $ 33,703 $ 31,682 Derivative assets 185 200 Accounts payable and accrued liabilities (2,538 ) (3,346 ) Dunebridge revolving credit facility (31,813 ) - Secured notes payable (381,674 ) (389,262 ) Total $ (382,137 ) $ (360,726 ) A 10% appreciation or depreciation of the Canadian dollar relative to the U.S. dollar at December 31, 2020 and 2019 would have resulted in an increase or decrease to net income for the year of approximately $38.2 million and $36.1 million, respectively.

Related Parties

Related Parties	12 Months Ended
	Dec. 31, 2020
Disclosure Of Related Party [Abstract]
Related Parties	16. RELATED PARTIES The Company’s related parties include the Operator of the GK Mine, Dermot Desmond, Dunebridge Worldwide Ltd. and Vertigol Unlimited Company (“Vertigol”) (corporations ultimately beneficially owned by Dermot Desmond), key management and their close family members, and the Company’s directors. Dermot Desmond, indirectly through Vertigol, is the ultimate beneficial owner of greater than 10% of the Company’s shares. International Investment Underwriting (“IIU”) is also a related party since it is ultimately beneficially owned by Dermot Desmond. Related party transactions are recorded at their exchange amount, being the amount agreed to by the parties. The Company had the following transactions and balances with its related parties including key management personnel including the Company’s directors, Dermot Desmond, Dunebridge, Vertigol, IIU and the Operator of the GK Mine. The transactions with key management personnel are in the nature of remuneration. The transactions with the Operator of the GK Mine relate to the funding of the Company’s interest in the GK Mine for the current year’s expenditures, capital additions, management fee, and production sales related to the 49% share of fancies and special diamonds. The transactions with IIU are for the director fees of the Chairman of the Company. In the second quarter of 2020, the Company entered into an agreement to sell up to US at the estimated prevailing market price at the time of each sale. The transaction also allows the Company to participate, after fees and expenses in a portion of any increase in the value of diamonds realized by D u At present, the sale r elated to a portion of Dunebridge inventor y is in the process of closing. On September 30, 2020, the Company entered into the Dunebridge RCF for US$25 million to reassign the previous RCF, with first ranking lien terms. The Dunebridge RCF carries an interest rate of 5% per annum, and is repayable on September 30, 2021 (Note 10). The agreement included Between 2014 and 2020, the Company and De Beers signed agreements allowing De Beers (“the Operator”) to utilize De Beers’ credit facilities to issue reclamation and restoration security deposits to the federal and territorial governments. In accordance with these agreements, the Company agreed to a 3% fee annually for their share of the letters of credit issued. As at December 31, 2020, the Company’s share of the letters of credit issued were $44.1 million (2019—$23.3 million). During the year ended December 31, 2020, the Company and De Beers signed an agreement to reduce the fee from 3% to 0.3%, annually, for their share of the letters of credit issued. Furthermore, a resolution was passed by the joint venture management committee to establish a decommissioning fund, where the Company will fund $15 million in 2020, and $10 million each year for four years thereafter until the Company’s 49% share totaling $55 million is fully funded. The targeting funding over time will increase, dependent on future increases to the decommissioning and restoration liability. During the year ended December 31, 2020, the Company funded $15 million into the decommissioning fund, which Failure to meet the obligations for cash calls to fund the Company’s share in the GK Mine may lead to dilution of the interest in the GK Mine. The balances as at December 31, 2020 and 2019 were as follows: December 31, December 31, 2020 2019 Payable De Beers Canada Inc. as the operator of the GK Mine* $ 2,789 $ 12,316 Payable to De Beers Canada Inc. for interest on letters of credit 550 353 Revolving credit facility with Dunebridge Worldwide Ltd. 31,813 - Payable to key management personnel 158 567 *included in accounts payable and accrued liabilities The transactions for the year ended December 31, 2020 and 2019 were as follows: Year ended Year ended December 31, 2020 December 31, 2019 The total of the transactions: International Investment and Underwriting $ 23 $ 50 Remuneration to key management personnel 1,875 2,467 Diamonds sold to Dunebridge Worldwide Ltd. 66,671 - Diamonds sold to De Beers Canada Inc. 12,610 12,582 Diamonds purchased from De Beers Canada Inc. 11,523 16,775 Finance costs incurred from De Beers Canada Inc. 198 701 Finance costs incurred from Dunebridge Worldwide Ltd. 852 - Assets purchased from De Beers Canada Inc. 42 42 Management fee charged by the Operator of the GK Mine 4,368 4,153 The remuneration expense of directors and other members of key management personnel for the year ended December 31, 2020 and 2019 were as follows: Year ended Year ended December 31, 2020 December 31, 2019 Consulting fees, payroll, director fees, bonus and other short-term benefits $ 1,357 $ 1,903 Share-based payments 541 614 $ 1,898 $ 2,517 Key management personnel are those persons having authority and responsibility for planning, directing and controlling the activities of the Company directly or indirectly, including any directors (executive and non-executive) of the Company. In addition to the directors of the Company, key management personnel include the CEO and CFO.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2020
Disclosure Of Income Tax [Abstract]
Income Taxes	17. INCOME TAXES Rate Reconciliation The December 31, 2020 December 31, 2019 Loss before income taxes $ (263,429) $ ( 131,939 26.5% 26.5% Tax expense calculated using statutory rates (69,809 ) (34,964) Expenses not deductible (earnings not taxable) (1,185) (2,520) Change in tax benefits not recognized 70,994 37,484 Current and deferred mining taxes - (3,181) Income tax expenses $ - $ (3,181) Current income tax expense $ - $ (7) Deferred tax expense $ - $ ( 3,174 Components of deferred tax assets and liabilities December 31, 2020 December 31, 2019 Deferred tax liabilities Inventory $ (449 ) $ 717 Property, plant & equipment (30 ) (6,562) Derivative assets and debt (519 ) (53) Deferred tax asset Non-capital & capital l s 998 5,898 $ - $ - Unrecognized deferred tax assets Deductible temporary differences for which def e December 31, 2020 December 31, 2019 Property, plant and equipment $ 104,795 $ 8,823 Decommissioning and restoration liability 71,923 58,273 Capital losses 426 2,923 Non-capital losses, expiring 2034 to 20 40 351,218 198,701 Share issuance cost 178 150 Secured notes payable - 5,771 $ 528,540 $ 274,641

Capital Management

Capital Management	12 Months Ended
	Dec. 31, 2020
Disclosure of objectives, policies and processes for managing capital [abstract]
Capital Management	18. CAPITAL MANAGEMENT The Company considers its capital structure to consist of debt, share capital, share-based payments reserve, and net of deficit. The Company manages its capital structure and makes adjustments to it, in order to have the funds available to support the acquisition, exploration and development of mineral properties and ongoing operations (Note 1). The Board of Directors does not establish quantitative return on capital criteria for management, but rather relies on the expertise of the Company’s management to sustain future development of the business. The declaration and payment of dividends on the Company’s common shares and the amount thereof are at the discretion of the Board of Directors, which takes into account the Company’s financial results, capital requirements, available cash flow, future prospects of the Company’s business and other factors considered relevant from time to time. In accordance with the Dunebridge RCF, permitted distributions to third parties (which include dividends) are subject to the Company having a net debt to EBITDA ratio of less than or equal to 1.75:1. Net debt is equal to total debt, less cash and cash equivalents. The aggregate amount of all distributions paid during the rolling four quarters up to and including the date of such distribution does not exceed 25% of free cash flows (“FCF”) during such period. FCF is defined as EBITDA minus, without duplication, (a) capital expenditures, (b) cash taxes, (c) any applicable standby fee, other fees or finance costs payable to the finance parties in connection with the Dunebridge RCF, (d) interest expenses and (e) any indebtedness (including mandatory prepayments) permitted under the existing agreement. Also, the available liquidity after payment of a distribution must be greater than or equal to US$60 million for distributions paid during a quarter ending March 31, or US$50 million for other quarters, where the aggregate amount of the all advances outstanding does not exceed US$10 million. Management reviews its capital management approach on an ongoing basis. The Company’s capital is summarized as follows: December 31, December 31, 2020 2019 Secured notes payable $ 374,706 $ 378,869 Dunebridge revolving credit facility 31,813 - Share capital 631,498 631,224 Share-based payments reserve 6,820 6,111 Deficit (565,952 ) (302,523) $ 478,885 $ 713,681

Segmented Reporting

Segmented Reporting	12 Months Ended
	Dec. 31, 2020
Disclosure of Segmented Reporting [Abstract]
Segmented Reporting	19. SEGMENTED REPORTING The reportable operating segments are those operations for which operating results are reviewed by the Chief Executive Officer who is the chief operating decision maker regarding decisions about resources to be allocated to the segment and to assess performance provided those operations pass certain quantitative thresholds. Operations with revenues, earnings or losses or assets that exceed 10% of total consolidated revenue, earnings or losses or assets are reportable segments. As a result of the asset acquisition of Kennady, which included all mineral rights of the KNP, the Company now owns multiple diamond projects in the North West Territories, Canada. The GK Mine is a diamond mine in operations, while the KNP resource continues to be developed through exploration and evaluation programs. As at and for the year ended December 31, 2020 GK Mine KNP Total Sales $ 226,993 $ - $ 226,993 Cost of sales: Production costs 153,679 - 153,679 Cost of acquired diamonds 11,088 - 11,088 Depreciation and depletion 63,711 - 63,711 Loss from mine operations (1,485) - (1,485) Exploration and evaluation expenses 1,076 2,731 3,807 Selling, general and administrative expenses 13,110 43 13,153 Operating loss (233,037 ) (2,774) (235,811 ) Net finance expenses (39,920) (77) (39,997) Derivative gains 127 - 127 Foreign exchange gains 12,252 - 12,252 Net loss before taxes $ (260,578 ) $ (2,851) $ (263,429 ) Total assets $ 424,272 $ 171,057 $ 595,329 Total liabilities $ 519,074 $ 2,555 $ 521,629 As at and for the year ended December 31, 2019 GK Mine KNP Total Sales $ 276,334 $ - $ 276,334 Cost of sales: Production costs 152,585 - 152,585 Cost of acquired diamonds 16,081 - 16,081 Depreciation and depletion 82,825 - 82,825 Earnings from mine operations 24,843 - 24,843 Impairment loss on property, plant and equipment 115,753 - 115,753 Exploration and evaluation expenses 4,754 4,130 8,884 Selling, general and administrative expenses 13,023 35 13,058 Operating loss (108,687) (4,165) (112,852) Net finance expenses (38,635) (2) (38,637) Derivative losses (1,214) - (1,214) Foreign exchange gains (losses) 20,765 (1) 20,764 Net loss before taxes $ (127,771) $ (4,168) $ (131,939) Total assets $ 651,898 $ 170,797 $ 822,695 Total liabilities $ 484,270 $ 2,279 $ 486,549

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Disclosure Of Significant Accounting Policies [Abstract]
Foreign currency	(i) Foreign currency The functional currency of the Company and its subsidiaries is the Canadian Dollar. In preparing the consolidated financial statements, transactions in currencies other than the Company’s functional currency are recognized at the rates of exchange prevailing at the dates of the transactions. At the end of each reporting period, monetary items denominated in foreign currencies are re-translated Non-monetary Exchange differences are recognized in profit or loss in the period in which they arise and presented in the consolidated statements of comprehensive loss.
Share-based payments	(ii) Share-based payments The Company maintains a Restricted Share Unit (“RSU”), Deferred Share Unit (“DSU”) and stock option plan for employees, directors, and other qualified individuals. Equity-settled transactions, which include RSUs, DSUs and stock options, are measured by reference to their fair value at the grant date. The fair values for RSU’s and DSU’s are determined using the market value of the share price, as listed on the TSX, at the close of business at the grant date. The fair value for stock options is determined using a Black-Scholes option pricing model, which relies on estimates of the future risk-free interest rate, future dividend payments, future share price volatility and the expected average life of options. The Company believes this model adequately captures the substantive features of the option awards, and is appropriate to calculate their fair values. The fair value determined for both RSUs and stock options at grant date is recognized over the vesting period in accordance with the vesting terms and conditions, with a corresponding increase to share-based payments reserve. Equity-settled share-based payments to employees and others providing similar services are measured at the fair value of the equity instruments at the grant date.
Income taxes and deferred taxes	(iii) Income taxes and deferred taxes The income tax expense or benefit for the year consists of two components: current and deferred. Current tax is the expected tax payable or receivable on the taxable profit or loss for the year. Current tax is calculated using tax rates and laws that were enacted or substantively enacted at the balance sheet date in each of the jurisdictions and includes any adjustments for taxes payable or recovery in respect of prior periods. Taxable profit or loss differs from profit or loss as reported in the Consolidated Statements of Comprehensive Income because of items of income or expenses that are taxable or deductible in other years, and items that are never taxable or deductible. Deferred tax is recognized on temporary differences between the carrying amounts of assets and liabilities in the consolidated financial statements and the corresponding tax bases used in the computation of taxable profit. Deferred tax liabilities are generally recognized for all taxable temporary differences. Deferred tax assets are generally recognized for all deductible temporary differences, loss carryforwards and tax credit carryforwards to the extent that it is probable that taxable profits will be available against which they can be utilized. To the extent that the Company does not consider it to be probable that taxable profits will be available against which deductible temporary differences, loss carryforwards, and tax credit carryforwards can be utilized, a deferred tax asset is not recognized. Deferred tax assets and liabilities are not recognized if the temporary difference arises from the initial recognition (other than in a business combination) of assets and liabilities in a transaction that affects neither the taxable profit nor the accounting profit. Deferred tax liabilities are recognized for taxable temporary differences associated with investments in subsidiaries, except where the Company is able to control the reversal of the temporary difference and it is probable that the temporary difference will not reverse in the foreseeable future. Deferred 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 profits against which to utilize the benefits of the temporary differences and they are expected to reverse in the foreseeable future. Deferred tax assets and liabilities are measured at the tax rates that are expected to apply in the period in which the liability is settled or the asset realized, based on tax rates (and tax laws) that have been enacted or substantively enacted by the end of the reporting period. The measurement of deferred tax liabilities and assets reflects the tax consequences that would follow from the manner in which the Company expects, at the end of the reporting period, to recover or settle the carrying amount of its assets and liabilities. Deferred tax assets and liabilities are offset when there is a legally enforceable right to set off deferred tax assets against deferred tax liabilities and when they relate to income taxes levied by the same taxation authority and the Company intends to settle its deferred tax assets and liabilities on a net basis. Current and deferred taxes are recognized in profit or loss, except when they relate to items that are recognized in other comprehensive income or directly in equity, in which case, the current and deferred taxes are also recognized in other comprehensive income or directly in equity, respectively.
Mineral properties and exploration and evaluation costs and development costs	(iv) Mineral properties and exploration and evaluation costs and development costs Exploration and evaluation (“E&E”) costs are those costs required to find a mineral property and determine commercial viability and technical feasibility. E&E costs include costs to establish an initial mineral resource and determine whether inferred mineral resources can be upgraded to measured and indicated mineral resources and whether measured and indicated mineral resources can be converted to proven and probable reserves. Exploration and evaluation costs consist of: ● gathering exploration data through topographical and geological studies; ● exploratory drilling, trenching and sampling; ● determining the volume and grade of the resource; ● test work on geology, metallurgy, mining, geotechnical and environmental; and ● conducting and refining engineering, marketing and financial studies. Costs in relation to these activities are expensed as incurred until such time that the technical feasibility and commercial viability of extracting the mineral resource are demonstrable. At such time, mineral properties are assessed for impairment, and an impairment loss, if any, is recognized, and future development costs will be capitalized to assets under construction. The key factors management used in determining technical feasibility and commercial viability were the following; ● completion of a feasibility study; ● obtaining required permits to construct the mine; ● completion of an evaluation of the financial resources required to construct the mine; ● availability of financial resources necessary to commence development activities to construct the mine; and ● management’s determination that a satisfactory return on investment, in relation to the risks to be assumed, is likely to be obtained. The Company also recognizes exploration and evaluation costs as assets when acquired as part of a business combination, or asset purchase, or as a result of rights acquired relating to a mineral property.
Impairment of non-financial assets	(v) Impairment of non-financial The carrying value of the Company’s capitalized property, plant and equipment, and exploration and evaluation assets are assessed for impairment when indicators of potential impairment are identified to exist. If any indication of impairment is identified, an estimate of the asset’s recoverable amount is calculated to determine the extent of the impairment loss, if any. The recoverable amount is determined as the higher of the fair value less costs of disposal for the asset and the asset’s value in use. In assessing value in use, the estimated future cash flows are discounted to their present value using a discount rate that reflects current market assessments of the time value of money and the risks specific to the asset for which the estimates of future cash flows have not been adjusted. Impairment is determined on an asset by asset basis, whenever possible. If it is not possible to determine impairment on an individual asset basis, then impairment is considered on the basis of a cash generating unit (“CGU”). CGUs represent the lowest level for which there are separately identifiable cash inflows that are largely independent of the cash flows from other assets or the Company’s other group of assets. The Company has determined that it has two CGUs. If the carrying amount of the asset exceeds its recoverable amount, the asset is impaired and an impairment loss is charged immediately to profit or loss so as to reduce the carrying amount to its recoverable amount.
Capitalized interest	(vi) Capitalized interest Interest costs for qualifying assets are capitalized. Qualifying assets are assets that require a significant amount of time to prepare for their intended use, including projects that are in development or construction stages. Capitalized interest costs are considered an element of the cost of the qualifying asset. Capitalization ceases when the asset is substantially complete or if active development is suspended or ceases. Where funds borrowed are directly attributable to a qualifying asset, the amount capitalized represents the borrowing costs specific to those borrowings.
Provisions	(vii) Provisions Provisions represent liabilities to the Company for which the amount or timing is uncertain. Provisions are recognized when the Company has a present legal or constructive obligation as a result of past events, it is probable that an outflow of resources will be required to settle the obligation, and the amount can be reliably estimated. Provisions are not recognized for future operating losses. Provisions are measured at the present value of the expected expenditures to settle the obligation, applying a pre-tax The Company records as decommissioning and restoration liability the present value of estimated costs of legal and constructive obligations required to restore locations in the period in which the obligation is incurred. The nature of these decommissioning and restoration activities includes dismantling and removing structures, rehabilitating mines and tailings dams, dismantling operating facilities, closure of plant and waste sites, and restoration, reclamation and re-vegetation The obligation generally arises when the asset is installed or the ground and/or environment is disturbed at the production location. When the liability is initially recognized, the present value of the estimated cost is capitalized if the Company has a related asset on its balance sheet, or expensed. Costs for restoration of subsequent site damage which is created on an ongoing basis during production are provided for at their net present values and is added to inventory, and then in production costs as inventory is sold. Over time, the discounted liability is increased for the change in present value. The periodic unwinding of the discount is recognized in profit or loss as a finance cost called “accretion expense on decommissioning and restoration liability”. Additional disturbances or changes in rehabilitation costs will be recognized as additional capitalized costs (or exploration and evaluation expense depending on whether there was a related asset when the liability was initially recognized) and additional decommissioning and restoration liability when they occur. If it is determined that the expected costs for decommissioning and restoration are reduced, the change in the present value of the reduction is recorded as a reduction in the capitalized costs (expensed), and a reduction of the decommissioning and restoration liability.
Loss or earnings per share	(viii) Loss or earnings per share Basic loss or earnings per share is calculated by dividing loss or earnings attributable to common shares by the weighted average number of shares outstanding during the year. Diluted loss or earnings per share is calculated using the denominator of the basic calculation described above adjusted to include the potentially dilutive effect of outstanding stock options. The denominator is increased by the weighted average number of common shares outstanding after adjustment for the effects of all dilutive potential common shares.
Revenue recognition	(ix) Revenue recognition The Company utilizes a sales agent to facilitate the sale of rough and/or fancies and specials diamonds to the end-customer. As outlined in the joint venture agreement between the Company and De Beers Canada, fancies and specials diamonds produced at the GK mine are subject to a bid process. When De Beers is the successful bidder, the Company recognizes 49% of the bid price as revenue at the completion of the bid process, as De Beers receives the fancies and specials diamonds and the Company is paid immediately for its share by De Beers. As outlined in the Dunebridge Sales Agreement (Note 16), the Company recognizes revenue when consideration has been received by the Company, which represents the completion of the performance obligations of the Company and when control is passed to Dunebridge. The agreement contemplates the potential for upside revenue, after fees and expenses, which gives rise to the potential variable consideration within the first three years. The upside variable consideration is only recognized on a net basis, when it can be estimated reliably, is not constrained by external factors out of the Company’s control, and is highly probable that a significant reversal of the amount will not occur in the future.
Property, plant and equipment	(x) Property, plant and equipment Property, plant and equipment are stated at cost less accumulated amortization and accumulated impairment losses. Cost comprises the fair value of consideration given to acquire an asset and includes the direct charges associated with bringing the asset to the location and condition necessary to put the asset into use, as well as the future cost of dismantling and removing the asset. When parts of an item of property, plant and equipment have different useful lives, they are accounted for as separate items (major components) of property, plant and equipment. Replacement cost, including major inspection and overhaul expenditures are capitalized for components of property, plant and equipment, which are accounted for separately. Development costs are capitalized under assets under construction. Expenditures, including engineering to design the size and scope of the project, environmental assessment and permitting and borrowing costs are capitalized to assets under construction. Amortization is provided on property, plant and equipment. Amortization is calculated so as to allocate the cost of each asset over its expected useful life to its estimated residual value. The estimated useful lives, residual values and amortization method are reviewed at the end of each annual reporting period. Mineral properties are not amortized until the properties to which they relate are placed into commercial production, at which time the costs will be amortized on a unit-of-production Upon entering commercial production stage, capitalized costs associated with the acquisition of the mineral property or the development of the mine, are amortized using the various methods based in the asset categories as follows: Corporate assets two to seven years, straight line Vehicles three to five years, straight line Production and related equipment units of production over proven and probable reserves General infrastructure units of production over proven and probable reserves Earthmoving equipment straight line over shorter of life of mine or life of the asset Mineral properties units of production over proven and probable reserves Assets under construction not depreciated until ready for use
Inventories	(xi) Inventories Inventories are recorded at the lower of cost and net realizable values. Net realizable value is the estimated selling price in the ordinary course of business, less estimated costs of completion. An impairment adjustment is made when the carrying amount is higher than the net realizable value. Rough diamonds classified as finished goods comprise diamonds that have been subject to the sorting process. Cost is determined on a weighted average cost per carat basis including production costs and value-added processing activity. As outlined in the joint venture agreement between the Company and De Beers Canada, fancies and special diamonds produced at the GK Mine are subject to a bid process. Upon a successful bid by the Company, the fancies and specials diamonds will be included in inventories and 51% of the bid amount will be paid to De Beers and capitalized to the cost of inventory. Cost for fancies and specials diamonds is determined on a weighted average cost basis including production costs and value-added processing activity plus the direct cost of acquiring the fancies and specials diamonds from De Beers. Stockpiled ore represents coarse ore that has been extracted from the mine and is available for future processing. Stockpiled ore value is based on costs incurred in bringing ore to the stockpile. Costs are added to the stockpiled ore based on current mining costs per tonne and are removed at the average cost per tonne of ore in the stockpile. Supplies inventory are consumable materials which are measured at the lower of weighted average cost and net realizable value.
Capitalized stripping costs	(xii) Capitalized stripping costs In open pit mining operations, it is necessary to remove overburden and other waste materials to access ore from which minerals can be extracted economically. The process of removing overburden and waste materials is referred to as stripping. Stripping costs incurred in order to provide initial access to the ore body (referred to as pre-production It may be also required to remove waste materials and to incur stripping costs during the production phase of the mine. The Company recognizes a stripping activity asset if all of the below conditions are met: ● It is probable that the future economic benefit (improved access to the component of the ore body) associated with the stripping activity will flow to the Company. ● The Company can identify the component of the ore body for which access has been improved. ● The costs relating to the stripping activity associated with that component can be measured reliably. The Company measures the stripping activity at cost based on an accumulation of costs incurred to perform the stripping activity that improves access to the identified component of ore, plus an allocation of directly attributable costs. The waste to ore strip ratio projected for the life of the specific orebody must be exceeded for the costs to be capitalized as stripping costs. After initial recognition, the stripping activity asset is carried at cost less depreciation and impairment losses in the same way as the existing asset of which it is a part. The stripping activity asset is depreciated over the expected useful life of the identified components of the ore body that becomes more accessible as a result of the stripping activity using the units of production method.
Financial Instruments	(xiii) Financial Instruments Classification The Company classifies its financial instruments in the following categories: at fair value through profit and loss (“FVTPL”), at fair value through other comprehensive income (“FVTOCI”) or at amortized cost. The Company determines the classification of financial assets at initial recognition. The classification of debt instruments is driven by the Company’s business model for managing the financial assets and their contractual cash flow characteristics. Financial liabilities are measured at amortized cost unless they are required to be measured at FVTPL (such as instruments held for trading or derivatives) or the Company has opted to measure them at FVTPL. Asset/Liability Classification Cash Amortized cost Equity securities FVTOCI Amounts receivable Amortized cost Derivative assets FVTPL Accounts payable and accrued liabilities Amortized cost Dunebridge revolving credit facility Amortized cost Secured notes payable Amortized cost Measurement Financial assets at FVTOCI Elected investments in equity instruments at FVTOCI are initially recognized at fair value plus transaction costs. Subsequently they are measured at fair value, with gains and losses arising from changes in fair value recognized in other comprehensive income. Financial assets and liabilities at amortized cost Financial assets and liabilities at amortized cost are initially recognized at fair value, plus transaction costs, and subsequently carried at amortized cost less any impairment. Financial liabilities carried at amortized cost utilize 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 (including all fees and points paid or received that form an integral part of the effective interest rate, transaction costs and other premiums or discounts) through the expected life of the financial liability, or where appropriate, a shorter period, to the net carrying amount on initial recognition. Financial assets and liabilities at FVTPL Financial assets and liabilities carried at FVTPL are initially recorded at fair value and transaction costs are expensed in the consolidated statements of comprehensive loss. Realized and unrealized gains and losses arising from changes in the fair value of the financial assets and liabilities held at FVTPL are included in the consolidated statements of comprehensive loss in the period in which they arise. Derivative asset (liabilities) related to foreign currency contracts, which become realized, are reclassified from derivative gains and losses into realized foreign exchange gains and losses. Financial assets The Company derecognizes financial assets only when the contractual rights to cash flows from the financial assets expire, or when it transfers the financial assets and substantially all the associated risks and rewards of ownership to another entity. Gains and losses on derecognition are generally recognized in the consolidated statements of comprehensive loss. However, gains and losses on derecognition of financial assets classified as FVTOCI are reclassified to retained earnings (deficit) as a reclassification within equity. Financial liabilities The Company derecognizes financial liabilities only when its obligations under the financial liabilities are discharged, cancelled, or expired. The difference between the carrying amount of the financial liability derecognized and the consideration paid and payable, including any non-cash
Leases	(xiv) Leases At inception of a contract, the Company assesses whether a contract is, or contains, a lease based on whether the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. The Company has elected not to recognize right-of-use low-value The Company recognizes a right-of-use asset and the associated lease liability at the lease commencement date. The right-of-use asset is initially measured based on the initial amount of the lease liability adjusted for any lease payments made at or before the commencement date, plus any initial costs incurred and an estimate of cost to remove the underlying asset, less any lease incentives received. Lease payments included in the measurement of the lease liability are comprised of amounts expected to be payable by the Company under residual value guarantees, and the exercise price of a purchase option if the Company is reasonably certain to exercise that option. The right-of-use asset is subsequently measured at cost, less any accumulated depreciation and any accumulated impairment losses, and adjusted for any remeasurement of the lease liability. The assets are depreciated using the lower of the useful life of the right-of-use asset or the lease term, using the straight-line method. The lease liabilities are initially measured at the present value of the lease payments that are not paid at the commencement date, discounted using the interest rate implicit in the lease, or if the rate cannot be readily determined, the Company’s incremental borrowing rate. The lease liabilities are subsequently measured at amortized cost using the effective interest rate method. Each lease payment is allocated between the lease liability and finance cost. The finance cost is charged to net income over the lease period so as to produce a constant periodic rate of interest on the remaining balance of the liability for each period. (xv) Government grants and assistance Government grants and assistance related to expenses are presented as part of comprehensive loss, as a deduction to the related expense in the reporting period.

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure Of Significant Accounting Policies [Abstract]
Disclosure of detailed information about property, plant and equipment useful life	Upon entering commercial production stage, capitalized costs associated with the acquisition of the mineral property or the development of the mine, are amortized using the various methods based in the asset categories as follows: Corporate assets two to seven years, straight line Vehicles three to five years, straight line Production and related equipment units of production over proven and probable reserves General infrastructure units of production over proven and probable reserves Earthmoving equipment straight line over shorter of life of mine or life of the asset Mineral properties units of production over proven and probable reserves Assets under construction not depreciated until ready for use

Amounts Receivable (Tables)

Amounts Receivable (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure Of Amounts Receivable [Abstract]
Amounts Receivable	December 31, 2020 December 31, 2019 GST/HST receivable $ 604 $ 936 Other receivable 193 752 Total $ 797 $ 1,688

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure Of Inventories Explanatory [Abstract]
Inventories	December 31, 2020 December 31, 2019 Ore stockpile $ 9,203 $ 8,592 Rough diamonds 48,036 70,190 Supplies inventory 33,267 32,990 Total $ 90,506 $ 111,772

Property, Plant And Equipment (

Property, Plant And Equipment (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure of detailed information about property, plant and equipment [abstract]
Property, Plant and Equipment	The Company’s property, plant and equipment as at December 31, 2020 and 2019 are as follows: Property, Assets under Property, equipment KNP Exploration and evaluation assets KNP Assets under Total Cost At January 1, 2019 $ 820,106 $ 4,894 $ 90 $ 166,947 $ 1,564 $ 993,601 Decommissioning and restoration adjustment (1,604 ) - - 1,919 - 315 January 1, 2019 IFRS 16 lease additions 2,670 - - - - 2,670 Additions/transfers* 35,162 (4,164 ) - - - 30,998 At December 31, 2019 856,334 730 90 168,866 1,564 1,027,584 Decommissioning and restoration adjustment 9,777 - - 278 - 10,055 Additions/transfers* 36,334 5,776 - - - 42,110 At December 31, 2020 $ 902,445 $ 6,506 $ 90 $ 169,144 $ 1,564 $ 1,079,749 Accumulated depreciation At January 1, 2019 $ (152,350 ) $ - $ (10 ) $ - $ - $ (152,360 ) Depreciation and depletion** (87,190 ) - (13 ) - - (87,203 ) Impairment loss (115,753 ) - - - - (115,753 ) At December 31, 2019 (355,293 ) - (23 ) - - (355,316 ) Depreciation and depletion** (55,643 ) - (13 ) - - (55,656 ) Impairment loss (217,366 ) - - - - (217,366 ) At December 31, 2020 $ (628,302 ) $ - $ (36 ) $ - $ - $ (628,338 ) Carrying amounts At December 31, 2019 $ 501,041 $ 730 $ 67 $ 168,866 $ 1,564 $ 672,268 At December 31, 2020 $ 274,143 $ 6,506 $ 54 $ 169,144 $ 1,564 $ 451,411 *Included in additions of property, plant and equipment for GK is $28,939 (2019 - $23,896) related to deferred stripping of which $1,781 relates to the depreciation of earthmoving equipment (2019 - $1,778). **Included in depreciation and depletion is $797 of depreciation on the right-of-use

Decommissioning And Restorati_2

Decommissioning And Restoration Liability (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure Of Decommissioning And Restoration Liability [Abstract]
Disclosure of detailed information about decommissioning and restoration liability assumptions	The GK Mine decommissioning and restoration liability was calculated using the following assumptions as at December 31, 2020 and 2019: December 31, 2020 December 31, 2019 Expected undiscounted cash flows $ 61,558 $ 58,965 Discount rate 0.67% 1.76% Inflation rate 2.00% 1.35% Periods 2030 2029 The Kennady North Project decommissioning and restoration liability was calculated using the following assumptions as at December 31, 2020 and 2019: December 31, 2020 December 31, 2019 Expected undiscounted cash flows $ 2,268 $ 2,235 Discount rate 0.25% 3.71% Inflation rate 2.00% 1.96% Periods 2024 2023
Disclosure of detailed information about decommissioning and restoration liability activity	The continuity of the decommissioning and restoration liability at December 31, 2020 and 2019 is as follows: GK Mine KNP Total Balance, at January 1, 2019 $ 54,756 $ 166 $ 54,922 Change in estimate of discounted cash flows 571 1,919 2,490 Accretion recorded during the year 1,102 2 1,104 Balance, at December 31, 2019 $ 56,429 $ 2,087 $ 58,516 Less: current portion of decommissioning and restoration liability 2,445 - 2,445 Non-current decommissioning and restoration liability, at December 31, 2019 $ 53,984 $ 2,087 $ 56,071 Change in estimate of discounted cash flows 13,086 278 13,364 Accretion recorded during the year 976 76 1,052 Balance, at December 31, 2020 $ 70,491 $ 2,441 $ 72,932 Less: current portion of decommissioning and restoration liability 2,489 - 2,489 Non-current decommissioning and restoration liability, at December 31, 2020 $ 68,002 $ 2,441 $ 70,443

Secured Notes Payable (Tables)

Secured Notes Payable (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure of secured notes payable [Abstract]
Disclosure of detailed information about secured notes	As at December 31, 2020, the Company has an obligation for US$299.9 million or $381.7 million Canadian dollar equivalent from the secured notes payable (December 31, 2019 -US$299.9 million December 31, 2020 December 31, 2019 Total outstanding secured notes payable $ 381,674 $ 389,262 Less: unamortized deferred transaction costs and issuance discount 6,968 10,393 Total secured notes payable $ 374,706 $ 378,869

Net Finance Expenses (Tables)

Net Finance Expenses (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure Of Net Finance Income Expense Explanatory [Abstract]
Net Finance Expenses	Year ended December 31, 2020 Year ended December 31, 2019 Interest income $ 170 $ 521 Accretion expense on decommissioning and restoration liability (1,052 ) (1,104 ) Interest expense (34,015 ) (33,048 ) Amortization of deferred financing costs (3,426 ) (3,726 ) Other finance costs* (1,674 ) (1,280 ) $ (39,997 ) $ (38,637 ) *Included in other finance costs for the year ended December 31, 2020 is $90 (2019 - $165) related to interest on lease liabilities.

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure of Shareholder's Equity [Line Items]
Disclosure of number and weighted average exercise prices of share options	The following table summarizes information about the stock options outstanding and exercisable: Year ended December 31, 2020 Year ended December 31, 2019 Number of options Weighted average exercise price Number of options Weighted average exercise price Balance at beginning of the year 3,518,335 $ 3.26 3,130,000 $ 4.17 Granted during the yea r - - 1,090,000 1.30 Expired during the year (980,000 ) 4.29 (600,000 ) 4.36 Forfeited during the year (83,333 ) 2.17 (101,665 ) 3.48 Balance at end of the year 2,455,002 $ 2.89 3,518,335 $ 3.26 Options exercisable at the end of the year 1,711,669 $ 3.51 1,972,223 $ 4.32
Disclosure of indirect measurement of fair value of goods or services received, share options granted during period	The fair value of the stock options granted have been estimated on the date of grant using the Black-Scholes option pricing model. The assumptions are presented below for options granted during the December 31, 2019 period. Expected volatility is calculated by reference to the weekly closing share price for a period that reflects the expected life of the options. The 1,090,000 stock options issued on December 27, 2019 vest 1/3 on December 27, 2020, 1/3 on December 27, 2021 and 1/3 on December 27, 2022. December 31, 2019 Exercise price $ 1.30 Expected volatility 43.33% Expected option life 5 years Contractual option life 5 years Expected forfeiture none Expected option cancellation none Expected dividend yield 0% Risk-free interest rate 1.64%
Disclosure of number and weighted average exercise prices of other equity instruments	The following table shows the RSU awards which have been granted and settled during the year: December 31, 2020 December 31, 2019 RSU Number of units Weighted average value grant date fair value Number of units Weighted average value grant date fair value Balance at beginning of year 1,065,000 $ 1.31 368,997 $ 5.01 Awards and payouts during the year (net): RSUs awarded - - 990,000 1.13 RSUs settled and common shares issued (98,334) 2.79 (289,997) 5.35 RSUs forfeited (103,333) 1.36 (4,000) 6.49 Balance at end of the year* 863,333 $ 1.13 1,065,000 $ 1.31 *As at December 31, 2020, 287,778 RSUs (2019, 16,667 RSUs) have vested and have not yet been settled.
Explanation of effect of share-based payments on entity's profit or loss	The share-based payments recognized as an expense for the year ended December 31, 2020 and 2019 are as follows: Year ended Year ended December 31, 2020 December 31, 2019 Expense recognized in the year for share-based payments $ 983 $ 789
Earnings per share	The following table sets forth the computation of basic and diluted loss per share: Year ended December 31, 2020 Year ended December 31, 2019 Numerator Net loss for the year $ (263,429 ) $ (128,758 ) Denominator For basic - weighted average number of shares outstanding 210,406,658 210,134,192 Effect of dilutive securities - - For diluted - adjusted weighted average number of shares outstanding 210,406,658 210,134,192 Loss Per Share Basic $ (1.25 ) $ (0.61 ) Diluted $ (1.25 ) $ (0.61 )
Black scholes [Member]
Disclosure of Shareholder's Equity [Line Items]
Earnings per share	The following tables reflect the number of stock options outstanding, the weighted average of stock options outstanding, and the exercise price of stock options outstanding at December 31, 2020. The Black-Scholes values are measured at the grant date. At December 31, 2020 Expiry Date Black-Scholes Value Number of Options Number of Exercisable Options Exercise Price June 30, 2021 120 100,000 100,000 6.35 November 3, 2021 214 100,000 100,000 6.96 February 5, 2022 171 100,000 100,000 5.86 December 21, 2022 931 875,002 875,002 3.48 June 30, 2023 203 200,000 133,333 3.30 June 30, 2023 41 40,000 40,000 3.30 December 27, 2024 416 1,040,000 363,334 1.30 $ 2,096 2,455,002 1,711,669 $ 2.89

Selling, General And Administ_2

Selling, General And Administrative Expenses (Tables)	12 Months Ended
	Dec. 31, 2020
Selling, General And Administrative Expenses
Selling, General And Administrative Expenses	Year ended December 31, 2020 Year ended December 31, 2019 Selling and marketing $ 5,259 $ 6,219 General and administrative: Consulting fees and payroll 1,946 2,730 Share-based payment expense 983 789 Depreciation 218 218 Office and administration 878 608 Professional fees 2,588 1,032 Promotion and investor relations 428 322 Director fees 278 258 Transfer agent and regulatory fees 461 452 Travel 114 430 $ 13,153 $ 13,058

Derivative Assets And Liabili_2

Derivative Assets And Liabilities (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure of Derivative Liabilities [Abstract]
Disclosure of detailed information about in derivative assets liabilities explanatory	The following table presents the various derivatives as at December 31, 2020 and 2019: December 31, 2020 December 31 2019 Prepayment option embedded derivatives $ 185 $ 200 Foreign currency contract derivative assets - 587 185 787 Current portion of embedded derivatives 23 - Current portion of foreign currency contracts assets - 587 Current portion of derivative assets 23 587 Non-current derivative assets $ 162 $ 200
Disclosure of inormation about amounts that affected statement of comprehensive income as result of hedge accounting	The following table presents amounts recognized in the Consolidated Statement of Comprehensive Loss for the year ended December 31, 2020 and 2019: Year ended Year ended December 31, 2020 December 31, 2019 Gain (loss) on derivative contracts - currency contracts $ 158 $ (163 ) Loss on prepayment option embedded derivative (31 ) (1,051 ) Total $ 127 $ (1,214 )

Financial Instruments (Tables)

Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure of detailed information about financial instruments [abstract]
Disclosure of detailed information about financial instruments	The following table shows the carrying amounts and fair values of the Company’s financial assets and financial liabilities, including their levels in the fair value hierarchy. It does not include fair value information for financial assets and financial liabilities not measured at fair value if the carrying amount is a reasonable approximation of fair value. Carrying amount Fair value December 31, 2020 Assets at amortized cost Fair value through profit and loss Liabilities at amortized cost Total Level 1 Level 2 Level 3 Total Financial assets measured at fair value Derivative assets $ - $ 185 $ - $ 185 $ - $ 185 $ - $ 185 $ - $ 185 $ - $ 185 Financial assets not measured at fair value Cash $ 35,152 $ - $ - $ 35,152 35,152 - - 35,152 Restricted cash 15,019 - - 15,019 15,019 - - 15,019 Amounts receivable 797 - - 797 797 - - 797 $ 50,968 $ - $ - $ 50,968 Financial liabilities not measured at fair value Accounts payable and accrued liabilities $ - $ - $ 41,010 $ 41,010 41,010 - - 41,010 Dunebridge revolving credit facility - - 31,813 31,813 - 31,813 - 31,813 Secured notes payable - - 374,706 374,706 329,632 - - 329,632 $ - $ - $ 447,529 $ 447,529 Carrying amount Fair value December 31, 2019 Assets at Fair value through Liabilities at amortized cost Total Level 1 Level 2 Level 3 Total Financial assets measured at fair value Derivative assets $ - $ 787 $ - $ 787 $ - $ 787 $ - $ 787 $ - $ 787 $ - $ 787 Financial assets not measured at fair value Cash $ 34,751 $ - $ - $ 34,751 34,751 - - 34,751 Amounts receivable 1,688 - - 1,688 1,688 - - 1,688 $ 36,439 $ - $ - $ 36,439 Financial liabilities not measured at fair value Accounts payable and accrued liabilities $ - $ - $ 47,319 $ 47,319 47,319 - - 47,319 Secured notes payable - - 378,869 378,869 378,083 - - 378,083 $ - $ - $ 426,188 $ 426,188
Disclosure of detailed information about financial liabilities and capital commitments including contractual obligations	The following table summarizes the contractual maturities of the Company’s significant financial liabilities and capital commitments, including contractual obligations: Less than 1 to 3 4 to 5 After 5 1 Year Years Years Years Total Gahcho Kué Diamond Mine commitments $ 4,058 $ - $ - $ - $ 4,058 Gahcho Kué Diamond Mine decommissioning fund 10,000 20,000 10,000 - 40,000 Dunebridge revolving credit facility - Principal 31,813 - - - 31,813 Dunebridge revolving credit facility - Interest 1,193 - - - 1,193 Notes payable - Principal - 381,674 - - 381,674 Notes payable - Interest 30,958 30,958 - - 61,916 $ 78,022 $ 432,632 $ 10,000 $ - $ 520,654
Disclosure of detailed information about net assets (liabilities)	As at December 31, 2020 and 2019, the Company had cash, derivative assets, accounts payable and accrued liabilities, the Dunebridge revolving credit facility and the secured notes payable that are in U.S. dollars. The Canadian dollar equivalent is as follows: December 31, December 31, 2020 2019 Cash $ 33,703 $ 31,682 Derivative assets 185 200 Accounts payable and accrued liabilities (2,538 ) (3,346 ) Dunebridge revolving credit facility (31,813 ) - Secured notes payable (381,674 ) (389,262 ) Total $ (382,137 ) $ (360,726 )

Related Parties (Tables)

Related Parties (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure Of Related Party [Abstract]
Disclosure of detailed information about related parties outstanding balances	The balances as at December 31, 2020 and 2019 were as follows: December 31, December 31, 2020 2019 Payable De Beers Canada Inc. as the operator of the GK Mine* $ 2,789 $ 12,316 Payable to De Beers Canada Inc. for interest on letters of credit 550 353 Revolving credit facility with Dunebridge Worldwide Ltd. 31,813 - Payable to key management personnel 158 567
Disclosure of transactions between related parties	The transactions for the year ended December 31, 2020 and 2019 were as follows: Year ended Year ended December 31, 2020 December 31, 2019 The total of the transactions: International Investment and Underwriting $ 23 $ 50 Remuneration to key management personnel 1,875 2,467 Diamonds sold to Dunebridge Worldwide Ltd. 66,671 - Diamonds sold to De Beers Canada Inc. 12,610 12,582 Diamonds purchased from De Beers Canada Inc. 11,523 16,775 Finance costs incurred from De Beers Canada Inc. 198 701 Finance costs incurred from Dunebridge Worldwide Ltd. 852 - Assets purchased from De Beers Canada Inc. 42 42 Management fee charged by the Operator of the GK Mine 4,368 4,153
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities	The remuneration expense of directors and other members of key management personnel for the year ended December 31, 2020 and 2019 were as follows: Year ended Year ended December 31, 2020 December 31, 2019 Consulting fees, payroll, director fees, bonus and other short-term benefits $ 1,357 $ 1,903 Share-based payments 541 614 $ 1,898 $ 2,517

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure Of Income Tax [Abstract]
Disclosure of Rate Reconciliation	The December 31, 2020 December 31, 2019 Loss before income taxes $ (263,429) $ ( 131,939 26.5% 26.5% Tax expense calculated using statutory rates (69,809 ) (34,964) Expenses not deductible (earnings not taxable) (1,185) (2,520) Change in tax benefits not recognized 70,994 37,484 Current and deferred mining taxes - (3,181) Income tax expenses $ - $ (3,181) Current income tax expense $ - $ (7) Deferred tax expense $ - $ ( 3,174
Disclosure of deferred taxes	December 31, 2020 December 31, 2019 Deferred tax liabilities Inventory $ (449 ) $ 717 Property, plant & equipment (30 ) (6,562) Derivative assets and debt (519 ) (53) Deferred tax asset Non-capital & capital l s 998 5,898 $ - $ -
Disclosure of Unrecognized deferred tax assets	Deductible temporary differences for which def e December 31, 2020 December 31, 2019 Property, plant and equipment $ 104,795 $ 8,823 Decommissioning and restoration liability 71,923 58,273 Capital losses 426 2,923 Non-capital losses, expiring 2034 to 20 40 351,218 198,701 Share issuance cost 178 150 Secured notes payable - 5,771 $ 528,540 $ 274,641

Capital Management (Tables)

Capital Management (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure of objectives, policies and processes for managing capital [abstract]
Capital Management	The Company’s capital is summarized as follows: December 31, December 31, 2020 2019 Secured notes payable $ 374,706 $ 378,869 Dunebridge revolving credit facility 31,813 - Share capital 631,498 631,224 Share-based payments reserve 6,820 6,111 Deficit (565,952 ) (302,523) $ 478,885 $ 713,681

Segmented Reporting (Tables)

Segmented Reporting (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure of Segmented Reporting [Abstract]
Disclosure and detailed information about revenue from segments	As at and for the year ended December 31, 2020 GK Mine KNP Total Sales $ 226,993 $ - $ 226,993 Cost of sales: Production costs 153,679 - 153,679 Cost of acquired diamonds 11,088 - 11,088 Depreciation and depletion 63,711 - 63,711 Loss from mine operations (1,485) - (1,485) Exploration and evaluation expenses 1,076 2,731 3,807 Selling, general and administrative expenses 13,110 43 13,153 Operating loss (233,037 ) (2,774) (235,811 ) Net finance expenses (39,920) (77) (39,997) Derivative gains 127 - 127 Foreign exchange gains 12,252 - 12,252 Net loss before taxes $ (260,578 ) $ (2,851) $ (263,429 ) Total assets $ 424,272 $ 171,057 $ 595,329 Total liabilities $ 519,074 $ 2,555 $ 521,629 As at and for the year ended December 31, 2019 GK Mine KNP Total Sales $ 276,334 $ - $ 276,334 Cost of sales: Production costs 152,585 - 152,585 Cost of acquired diamonds 16,081 - 16,081 Depreciation and depletion 82,825 - 82,825 Earnings from mine operations 24,843 - 24,843 Impairment loss on property, plant and equipment 115,753 - 115,753 Exploration and evaluation expenses 4,754 4,130 8,884 Selling, general and administrative expenses 13,023 35 13,058 Operating loss (108,687) (4,165) (112,852) Net finance expenses (38,635) (2) (38,637) Derivative losses (1,214) - (1,214) Foreign exchange gains (losses) 20,765 (1) 20,764 Net loss before taxes $ (127,771) $ (4,168) $ (131,939) Total assets $ 651,898 $ 170,797 $ 822,695 Total liabilities $ 484,270 $ 2,279 $ 486,549

Nature of Operations and Goin_2

Nature of Operations and Going Concern - Additional Information (Detail) $ in Thousands, $ in Millions	1 Months Ended	12 Months Ended
	Apr. 13, 2018	Dec. 31, 2020CAD ($)	Dec. 31, 2019CAD ($)	Dec. 31, 2020USD ($)	Sep. 30, 2020USD ($)
Disclosure Of Nature of Operations and going concern [Line Items]
Proportion of ownership interests held by non-controlling interests		49.00%
Operating losses		$ (235,811)	$ (112,852)
Working capital		52,800	99,400
Undrawn borrowing facilities		31,813	0
Impairment loss on property, plant and equipment		$ 217,366	$ 115,753
Revolving Credit Facility1 [Member]
Disclosure Of Nature of Operations and going concern [Line Items]
Undrawn borrowing facilities				$ 50
Revolving Credit Facility1 [Member] | Dunebridge Worldwide LTD [Member]
Disclosure Of Nature of Operations and going concern [Line Items]
Undrawn borrowing facilities					$ 2.3
Revolving Credit Facility1 [Member] | Dunebridge Worldwide LTD [Member] | Covid Nineteen Pandemic [Member]
Disclosure Of Nature of Operations and going concern [Line Items]
Undrawn borrowing facilities					$ 25
Kennady North Project [Member]
Disclosure Of Nature of Operations and going concern [Line Items]
Proportion of ownership interest in joint operation	100.00%
Gahcho Kue Diamond Mine [Member]
Disclosure Of Nature of Operations and going concern [Line Items]
Proportion of ownership interests held by non-controlling interests		49.00%

Basis of Presentation - Additio

Basis of Presentation - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020
Ontario Inc. 2435572 [Member]
Disclosure of basis of preparation [Line Items]
Proportion of ownership interest in subsidiary	100.00%
Ontario Inc 2435386 [Member]
Disclosure of basis of preparation [Line Items]
Proportion of ownership interest in subsidiary	100.00%
Ontario Inc 2435386 [Member] | Gk mine [Member]
Disclosure of basis of preparation [Line Items]
Proportion of ownership interest in associate	49.00%
Kennady Diamonds Inc [Member]
Disclosure of basis of preparation [Line Items]
Proportion of ownership interest in subsidiary	100.00%

Significant Accounting Polici_4

Significant Accounting Policies - Detailed Information about Property, Plant and Equipment Useful Life (Detail)	12 Months Ended
	Dec. 31, 2020
Corporate assets [Member]
Disclosure Of Significant Accounting Policies [Line Items]
Useful lives or depreciation rates, property, plant and equipment	two to seven years, straight line
Vehicles [Member]
Disclosure Of Significant Accounting Policies [Line Items]
Useful lives or depreciation rates, property, plant and equipment	three to five years, straight line
Production and related equipment [Member]
Disclosure Of Significant Accounting Policies [Line Items]
Useful lives or depreciation rates, property, plant and equipment	units of production over proven and probable reserves
General infrastructure [Member]
Disclosure Of Significant Accounting Policies [Line Items]
Useful lives or depreciation rates, property, plant and equipment	units of production over proven and probable reserves
Earthmoving equipment [Member]
Disclosure Of Significant Accounting Policies [Line Items]
Useful lives or depreciation rates, property, plant and equipment	straight line over shorter of life of mine or life of the asset
Mineral properties [Member]
Disclosure Of Significant Accounting Policies [Line Items]
Useful lives or depreciation rates, property, plant and equipment	units of production over proven and probable reserves
Assets under construction [Member]
Disclosure Of Significant Accounting Policies [Line Items]
Useful lives or depreciation rates, property, plant and equipment	not depreciated until ready for use

Significant Accounting Polici_5

Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020
Disclosure Of Significant Accounting Policies [Line Items]
Percentage of bid amount to be included in inventory	51.00%
De Beers [Member]
Disclosure Of Significant Accounting Policies [Line Items]
Percentage of bid price as revenue	49.00%

Amounts Receivable - Detailed I

Amounts Receivable - Detailed Information about Amounts Receivable (Detail) - CAD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Amounts Receivable [Abstract]
GST/HST receivable	$ 604	$ 936
Other receivable	193	752
Total	$ 797	$ 1,688

Inventories - Detailed Informat

Inventories - Detailed Information about Inventories (Detail) - CAD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Inventories Explanatory [Abstract]
Ore stockpile	$ 9,203	$ 8,592
Rough diamonds	48,036	70,190
Supplies inventory	33,267	32,990
Total	$ 90,506	$ 111,772

Inventories - Additional Inform

Inventories - Additional Information (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Inventories Explanatory [Abstract]
Depreciation and depletion included in inventories	$ 13,663	$ 23,894
Employee benefits expense	$ 34,271	38,318
Percentage of payroll and employee benefits included in production costs	49.00%
Wages subsidy expenses	$ 7,238	$ 0

Property, Plant and Equipment -

Property, Plant and Equipment - Detailed Information about Property, Plant and Equipment (Detail) - CAD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		$ 672,268
Impairment loss		(217,366)	$ (115,753)
Ending balance		451,411	672,268
Gross carrying amount [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		1,027,584	993,601
Decommissioning and restoration adjustment		10,055	315
Additions/transfers	[1]	42,110	30,998
Ending balance		1,079,749	1,027,584
Gross carrying amount [member] | IFRS 16 [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Decommissioning and restoration adjustment			2,670
Gross carrying amount [member] | IFRS 16 [Member] | Right-of-use assets [member]
Disclosure of detailed information about property, plant and equipment [line items]
Decommissioning and restoration adjustment			2,670
Accumulated depreciation, amortisation and impairment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		(355,316)	(152,360)
Depreciation and depletion	[2]	(55,656)	(87,203)
Impairment loss		(217,366)	(115,753)
Ending balance		(628,338)	(355,316)
Property, plant and equipment [Member] | Kennady North Project [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		67
Ending balance		54	67
Property, plant and equipment [Member] | Kennady North Project [Member] | Gross carrying amount [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		90	90
Decommissioning and restoration adjustment		0	0
Additions/transfers	[1]	0	0
Ending balance		90	90
Property, plant and equipment [Member] | Kennady North Project [Member] | Gross carrying amount [member] | IFRS 16 [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Decommissioning and restoration adjustment			0
Property, plant and equipment [Member] | Kennady North Project [Member] | Accumulated depreciation, amortisation and impairment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		(23)	(10)
Depreciation and depletion	[2]	(13)	(13)
Impairment loss		0	0
Ending balance		(36)	(23)
Property, plant and equipment [Member] | Gahcho Kue Diamond Mine [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		501,041
Ending balance		274,143	501,041
Property, plant and equipment [Member] | Gahcho Kue Diamond Mine [Member] | Gross carrying amount [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		856,334	820,106
Decommissioning and restoration adjustment		9,777	(1,604)
Additions/transfers	[1]	36,334	35,162
Ending balance		902,445	856,334
Property, plant and equipment [Member] | Gahcho Kue Diamond Mine [Member] | Accumulated depreciation, amortisation and impairment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		(355,293)	(152,350)
Depreciation and depletion	[2]	(55,643)	(87,190)
Impairment loss		(217,366)	(115,753)
Ending balance		(628,302)	(355,293)
Assets under construction [Member] | Kennady North Project [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		1,564
Ending balance		1,564	1,564
Assets under construction [Member] | Kennady North Project [Member] | Gross carrying amount [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		1,564	1,564
Decommissioning and restoration adjustment		0	0
Additions/transfers	[1]	0	0
Ending balance		1,564	1,564
Assets under construction [Member] | Kennady North Project [Member] | Gross carrying amount [member] | IFRS 16 [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Decommissioning and restoration adjustment			0
Assets under construction [Member] | Kennady North Project [Member] | Accumulated depreciation, amortisation and impairment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		0	0
Depreciation and depletion	[2]
Impairment loss		0	0
Ending balance		0	0
Assets under construction [Member] | Gahcho Kue Diamond Mine [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		730
Ending balance		6,506	730
Assets under construction [Member] | Gahcho Kue Diamond Mine [Member] | Gross carrying amount [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		730	4,894
Decommissioning and restoration adjustment		0	0
Additions/transfers	[1]	5,776	(4,164)
Ending balance		6,506	730
Assets under construction [Member] | Gahcho Kue Diamond Mine [Member] | Gross carrying amount [member] | IFRS 16 [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Decommissioning and restoration adjustment			0
Assets under construction [Member] | Gahcho Kue Diamond Mine [Member] | Accumulated depreciation, amortisation and impairment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		0	0
Depreciation and depletion	[2]
Impairment loss		0	0
Ending balance		0	0
Mining assets [member] | Kennady North Project [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		168,866
Ending balance		169,144	168,866
Mining assets [member] | Kennady North Project [Member] | Gross carrying amount [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		168,866	166,947
Decommissioning and restoration adjustment		278	1,919
Additions/transfers	[1]	0	0
Ending balance		169,144	168,866
Mining assets [member] | Kennady North Project [Member] | Gross carrying amount [member] | IFRS 16 [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Decommissioning and restoration adjustment			0
Mining assets [member] | Kennady North Project [Member] | Accumulated depreciation, amortisation and impairment [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		0	0
Depreciation and depletion	[2]
Impairment loss		0	0
Ending balance		$ 0	$ 0
[1]	Included in additions of property, plant and equipment for GK is $28,939 (2019 - $23,896) related to deferred stripping of which $1,781 relates to the depreciation of earthmoving equipment (2019 - $1,778).
[2]	Included in depreciation and depletion is $797 of depreciation on the right-of-use assets capitalized under IFRS 16 (2019 - $1,093).

Property, Plant and Equipment_2

Property, Plant and Equipment - Additional Information (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about property, plant and equipment [line items]
Impairment loss on property, plant and equipment	$ 217,366	$ 115,753
Description of growth rate used to extrapolate cash flow projections	2.50%	0.00%
Diamond Pricing [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Change in rate	10.00%
Increase Decrease In Fair Value	$ 123,000	$ 131,000
Real Growth Escalation On Diamond Pricing [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Description of growth rate used to extrapolate cash flow projections	2.50%	2.50%
Change in rate	0.50%
Increase Decrease In Fair Value	$ 29,000	$ 29,000
Discount Rate [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Change in rate	0.50%
Increase Decrease In Fair Value	$ 5,000	11,000
Gk mine [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Impairment loss on property, plant and equipment	217,366	115,753
Recoverable amount of asset	$ 281,600	$ 510,100
Description of discount rates applied to cash flow projections	8.40%	7.55%
Depreciation and Depletion [Member] | IFRS 16 [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Depreciation right of use assets	$ 797	$ 1,093
Gahcho Kue Diamond Mine [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Additions of property plant and equipment	28,939	23,896
Gahcho Kue Diamond Mine [Member] | Earthmoving equipment [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Depreciation of earthmoving equipment	$ 1,781	$ 1,778

Decommissioning And Restorati_3

Decommissioning And Restoration Liability - Summary of Decommissioning and Restoration Liability Assumptions (Detail) - Provision for decommissioning, restoration and rehabilitation costs [member] - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
GK Mine [Member]
Decommissioning And Restoration Liability [Line Items]
Expected undiscounted cash flows	$ 61,558	$ 58,965
Discount rate	0.67%	1.76%
Inflation rate	2.00%	1.35%
Periods	2030	2029
KNP [Member]
Decommissioning And Restoration Liability [Line Items]
Expected undiscounted cash flows	$ 2,268	$ 2,235
Discount rate	0.25%	3.71%
Inflation rate	2.00%	1.96%
Periods	2024	2023

Decommissioning And Restorati_4

Decommissioning And Restoration Liability - Summary of Decommissioning and Restoration Liability Activity (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Decommissioning And Restoration Liability [Line Items]
Balance, beginning of year	$ 58,516	$ 54,922
Change in estimate of discounted cash flows	13,364	2,490
Accretion recorded during the year	1,052	1,104
Balance, end of the year	72,932	58,516
Less: current portion of decommissioning and restoration liability	2,489	2,445
Non-current decommissioning and restoration liability	70,443	56,071
GK Mine [Member]
Decommissioning And Restoration Liability [Line Items]
Balance, beginning of year	56,429	54,756
Change in estimate of discounted cash flows	13,086	571
Accretion recorded during the year	976	1,102
Balance, end of the year	70,491	56,429
Less: current portion of decommissioning and restoration liability	2,489	2,445
Non-current decommissioning and restoration liability	68,002	53,984
KNP [Member]
Decommissioning And Restoration Liability [Line Items]
Balance, beginning of year	2,087	166
Change in estimate of discounted cash flows	278	1,919
Accretion recorded during the year	76	2
Balance, end of the year	2,441	2,087
Less: current portion of decommissioning and restoration liability	0	0
Non-current decommissioning and restoration liability	$ 2,441	$ 2,087

Decommissioning And Restorati_5

Decommissioning And Restoration Liability - Additional Information (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Decommissioning And Restoration Liability [Abstract]
Increase decrease in discounted cash flows of decommissioning restoration and rehabilitation provision	$ 13,364	$ 2,490

Secured Notes Payable - Summary

Secured Notes Payable - Summary of Secured Notes (Detail) $ in Thousands, $ in Millions	Dec. 31, 2020CAD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019CAD ($)	Dec. 31, 2019USD ($)	Dec. 11, 2017USD ($)
Disclosure of secured notes payable [Line Items]
Total secured notes payable	$ 374,706	$ 299.9	$ 378,869	$ 299.9
Senior secured notes [Member]
Disclosure of secured notes payable [Line Items]
Total outstanding secured notes payable	381,674	$ 299.9	389,262	$ 299.9	$ 330
Less: unamortized deferred transaction costs and issuance discount	6,968		10,393
Total secured notes payable	$ 374,706		$ 378,869

Secured Notes Payable - Additio

Secured Notes Payable - Additional Information (Detail) $ in Thousands, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020USD ($)	Dec. 31, 2020CAD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019CAD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2020USD ($)	Jun. 30, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 11, 2017USD ($)
Disclosure of secured notes payable [Line Items]
Undrawn borrowing facilities		$ 31,813		$ 0
Description of range of percentages of commitment fee payable on credit facilities		The RCF had a term of three years and the Company was subject to a quarterly commitment fee between 0.9625% and 1.2375%, depending on certain leverage ratio at the time.	The RCF had a term of three years and the Company was subject to a quarterly commitment fee between 0.9625% and 1.2375%, depending on certain leverage ratio at the time.
Description of range of percentages of commitment fee payable on drawn credit facilities		Upon drawing on the RCF, an interest rate of LIBOR plus 2.5% to 4.5% per annum would have been charged for the number of days the funds are outstanding, based on certain leverage ratio at the time.	Upon drawing on the RCF, an interest rate of LIBOR plus 2.5% to 4.5% per annum would have been charged for the number of days the funds are outstanding, based on certain leverage ratio at the time.
Description of financial ratios		Under the Dunebridge RCF, permitted distributions to third parties (which include dividends) are subject to the Company having a net debt to EBITDA ratio of less than or equal to 1.75:1. Net debt is equal to total debt, less cash and cash equivalents. The aggregate amount of all distributions paid during the rolling four quarters up to and including the date of such distribution does not exceed 25% of free cash flows (“FCF”) during such period. FCF is defined as EBITDA minus, without duplication, (a) capital expenditures, (b) cash taxes, (c) any applicable standby fee, other fees or finance costs payable to the finance parties in connection with the Dunebridge RCF, (d) interest expenses and (e) any indebtedness (including mandatory prepayments) permitted under the existing agreement. Also, the available liquidity after payment of a distribution must be greater than or equal to US$60 million for distributions paid during a quarter ending March 31, or US$50 million for other quarters, where the aggregate amount of the all advances outstanding does not exceed US$10 million.	Under the Dunebridge RCF, permitted distributions to third parties (which include dividends) are subject to the Company having a net debt to EBITDA ratio of less than or equal to 1.75:1. Net debt is equal to total debt, less cash and cash equivalents. The aggregate amount of all distributions paid during the rolling four quarters up to and including the date of such distribution does not exceed 25% of free cash flows (“FCF”) during such period. FCF is defined as EBITDA minus, without duplication, (a) capital expenditures, (b) cash taxes, (c) any applicable standby fee, other fees or finance costs payable to the finance parties in connection with the Dunebridge RCF, (d) interest expenses and (e) any indebtedness (including mandatory prepayments) permitted under the existing agreement. Also, the available liquidity after payment of a distribution must be greater than or equal to US$60 million for distributions paid during a quarter ending March 31, or US$50 million for other quarters, where the aggregate amount of the all advances outstanding does not exceed US$10 million.
Information about restrictions or covenants imposed debt agreement		Subject to certain limitations and exceptions, the amount of the restricted payments, which include dividends and share buybacks, is limited to a maximum dollar threshold, which is calculated at an opening basket of US$10 million plus 50% of the historical consolidated net income, subject to certain adjustments, reported from the quarter of issuance and up to the most recently available financial statements at the time of such restricted payment, plus an amount not to exceed the greater of US$15 million and 2% of total assets as defined in the indenture.	Subject to certain limitations and exceptions, the amount of the restricted payments, which include dividends and share buybacks, is limited to a maximum dollar threshold, which is calculated at an opening basket of US$10 million plus 50% of the historical consolidated net income, subject to certain adjustments, reported from the quarter of issuance and up to the most recently available financial statements at the time of such restricted payment, plus an amount not to exceed the greater of US$15 million and 2% of total assets as defined in the indenture.
Repayments of bonds, notes and debentures		$ 0		13,158	$ 10,000
Covid Nineteen Pandemic [Member]
Disclosure of secured notes payable [Line Items]
Borrowings							$ 25,000
Leverage ratio [Member]
Disclosure of secured notes payable [Line Items]
Description of financial ratios		Upon drawing on the RCF, an interest rate of LIBOR plus 2.5% to 4.5% per annum would have been charged for the number of days the funds are outstanding, based on certain leverage ratio at the time.	Upon drawing on the RCF, an interest rate of LIBOR plus 2.5% to 4.5% per annum would have been charged for the number of days the funds are outstanding, based on certain leverage ratio at the time.
Borrowings, interest rate basis		LIBOR plus 2.5% to 4.5% per annum	LIBOR plus 2.5% to 4.5% per annum
Leverage ratio [Member] | Bottom of range [member]
Disclosure of secured notes payable [Line Items]
Borrowings, adjustment to interest rate basis		2.50%				2.50%
Leverage ratio [Member] | Top of range [member]
Disclosure of secured notes payable [Line Items]
Borrowings, adjustment to interest rate basis		4.50%				4.50%
Senior secured notes [Member]
Disclosure of secured notes payable [Line Items]
Notional amount		$ 381,674		$ 389,262		$ 299,900		$ 299,900	$ 330,000
Borrowings, interest rate									8.00%
Borrowing costs incurred			$ 0
Borrowings, maturity		mature on December 15, 2022	mature on December 15, 2022
Revolving Credit Facility1 [Member]
Disclosure of secured notes payable [Line Items]
Borrowings, maturity	December 15, 2020
Undrawn borrowing facilities						$ 50,000
Repayments of bonds, notes and debentures	$ 25,000
Revolving Credit Facility1 [Member] | Dunebridge Worldwide LTD [Member]
Disclosure of secured notes payable [Line Items]
Borrowings, interest rate	5.00%
Undrawn borrowing facilities	$ 2,300
Borrowings	25,000
Revolving Credit Facility1 [Member] | Dunebridge Worldwide LTD [Member] | Covid Nineteen Pandemic [Member]
Disclosure of secured notes payable [Line Items]
Undrawn borrowing facilities	25,000
Revolving Credit Facility1 [Member] | Bottom of range [member]
Disclosure of secured notes payable [Line Items]
Borrowings							25,000
Revolving Credit Facility1 [Member] | Top of range [member]
Disclosure of secured notes payable [Line Items]
Borrowings							$ 50,000
Revolving credit | Dunebridge Worldwide LTD [Member]
Disclosure of secured notes payable [Line Items]
Borrowings	$ 22,700

Dunebridge Revolving Credit F_2

Dunebridge Revolving Credit Facility - Additional Information (Detail) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2020	Jun. 30, 2020
Disclosure Of Dunebridge Revolving Credit Facility [Line Items]
Description of financial ratios		Under the Dunebridge RCF, permitted distributions to third parties (which include dividends) are subject to the Company having a net debt to EBITDA ratio of less than or equal to 1.75:1. Net debt is equal to total debt, less cash and cash equivalents. The aggregate amount of all distributions paid during the rolling four quarters up to and including the date of such distribution does not exceed 25% of free cash flows (“FCF”) during such period. FCF is defined as EBITDA minus, without duplication, (a) capital expenditures, (b) cash taxes, (c) any applicable standby fee, other fees or finance costs payable to the finance parties in connection with the Dunebridge RCF, (d) interest expenses and (e) any indebtedness (including mandatory prepayments) permitted under the existing agreement. Also, the available liquidity after payment of a distribution must be greater than or equal to US$60 million for distributions paid during a quarter ending March 31, or US$50 million for other quarters, where the aggregate amount of the all advances outstanding does not exceed US$10 million.
Revolving Credit Facility1 [Member]
Disclosure Of Dunebridge Revolving Credit Facility [Line Items]
Percentage of commitment fee	1.00%
Revolving Credit Facility1 [Member] | Top of range [member]
Disclosure Of Dunebridge Revolving Credit Facility [Line Items]
Borrowings			$ 50
Dunebridge Worldwide LTD [Member] | Revolving Credit Facility1 [Member]
Disclosure Of Dunebridge Revolving Credit Facility [Line Items]
Borrowings	$ 25
Borrowings, interest rate	5.00%
Dividends recognised as distributon	$ 50
Aggregate amount of the all advances outstanding	10
Dunebridge Worldwide LTD [Member] | Revolving Credit Facility1 [Member] | Top of range [member]
Disclosure Of Dunebridge Revolving Credit Facility [Line Items]
Available liquidity after payment of distributions	$ 60

Net Finance Expenses - Summary

Net Finance Expenses - Summary of Finance Income Expenses (Detail) - CAD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Net Finance Income Expense Explanatory [Abstract]
Interest income		$ 170	$ 521
Accretion expense on decommissioning and restoration liability		(1,052)	(1,104)
Interest expense		(34,015)	(33,048)
Amortization of deferred financing costs		(3,426)	(3,726)
Other finance costs	[1]	(1,674)	(1,280)
Net finance income (expense)		$ (39,997)	$ (38,637)
[1]	Included in other finance costs for the year ended December 31, 2020 is $90 (2019 - $165) related to interest on lease liabilities.

Net Finance Expenses - Addition

Net Finance Expenses - Additional Information (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Net Finance Income Expense Explanatory [Abstract]
Interest expenses on lease liabilitites	$ 90	$ 165

Shareholders' Equity - Summary

Shareholders' Equity - Summary of Stock Options (Detail)	Dec. 27, 2019shares	Jan. 31, 2021shares$ / shares	Dec. 31, 2020$ / shares	Dec. 31, 2019$ / shares
Disclosure of Shareholder's Equity [Abstract]
Number of options, Balance at beginning of year		2,455,002	3,518,335	3,130,000
Number of options, Granted during the year	1,090,000	1,085,000	0	1,090,000
Number of options, Expired during the year			(980,000)	(600,000)
Number of options, Forfeited during the year			(83,333)	(101,665)
Number of options, Balance at end of the year			2,455,002	3,518,335
Number of options, Options exercisable at the end of the year			1,711,669	1,972,223
Weighted average exercise price, Balance at beginning of year		$ 2.89	$ 3.26	$ 4.17
Weighted average exercise price, Granted during the year			0	1.30
Weighted average exercise price, Expired during the period			4.29	4.36
Weighted average exercise price, Forfeited during the year			2.17	3.48
Weighted average exercise price, Balance at end of the year			2.89	3.26
Weighted average exercise price, Options exercisable at the end of the year			$ 3.51	$ 4.32

Shareholders' Equity - Assumpti

Shareholders' Equity - Assumptions of Options Granted (Detail)	12 Months Ended
	Dec. 31, 2019yr$ / shares
Disclosure of Shareholder's Equity [Line Items]
Exercise price | $ / shares	$ 1.30
Expected volatility	43.33%
Expected option life (in years)	5
Contractual option life (in years)	5
Expected dividend yield	0.00%
Risk-free interest rate	1.64%

Shareholders' Equity - Summar_2

Shareholders' Equity - Summary of Number of Stock Options Outstanding, the Weighted Average of Options Outstanding, and the Exercise Price of Stock Options Outstanding (Detail) $ / shares in Units, $ in Thousands	Dec. 31, 2020CAD ($)$ / shares	Dec. 31, 2019$ / shares	Dec. 31, 2018$ / shares
Disclosure of Shareholder's Equity [Line Items]
Number of share options outstanding in share-based payment arrangement	2,455,002	3,518,335	3,130,000
Number of share options exercisable in share-based payment arrangement	1,711,669	1,972,223
Weighted average exercise price of share options outstanding in share-based payment arrangement | $ / shares	$ 2.89	$ 3.26	$ 4.17
June 30, 2021
Disclosure of Shareholder's Equity [Line Items]
Number of share options outstanding in share-based payment arrangement	100,000
Number of share options exercisable in share-based payment arrangement	100,000
Weighted average exercise price of share options outstanding in share-based payment arrangement | $ / shares	$ 6.35
November 3, 2021
Disclosure of Shareholder's Equity [Line Items]
Number of share options outstanding in share-based payment arrangement	100,000
Number of share options exercisable in share-based payment arrangement	100,000
Weighted average exercise price of share options outstanding in share-based payment arrangement | $ / shares	$ 6.96
February 5, 2022
Disclosure of Shareholder's Equity [Line Items]
Number of share options outstanding in share-based payment arrangement	100,000
Number of share options exercisable in share-based payment arrangement	100,000
Weighted average exercise price of share options outstanding in share-based payment arrangement | $ / shares	$ 5.86
December 21, 2022
Disclosure of Shareholder's Equity [Line Items]
Number of share options outstanding in share-based payment arrangement	875,002
Number of share options exercisable in share-based payment arrangement	875,002
Weighted average exercise price of share options outstanding in share-based payment arrangement | $ / shares	$ 3.48
June 30, 2023
Disclosure of Shareholder's Equity [Line Items]
Number of share options outstanding in share-based payment arrangement	200,000
Number of share options exercisable in share-based payment arrangement	133,333
Weighted average exercise price of share options outstanding in share-based payment arrangement | $ / shares	$ 3.30
June 30, 2023
Disclosure of Shareholder's Equity [Line Items]
Number of share options outstanding in share-based payment arrangement	40,000
Number of share options exercisable in share-based payment arrangement	40,000
Weighted average exercise price of share options outstanding in share-based payment arrangement | $ / shares	$ 3.30
December 27, 2024
Disclosure of Shareholder's Equity [Line Items]
Number of share options outstanding in share-based payment arrangement	1,040,000
Number of share options exercisable in share-based payment arrangement	363,334
Weighted average exercise price of share options outstanding in share-based payment arrangement | $ / shares	$ 1.30
Black scholes [Member]
Disclosure of Shareholder's Equity [Line Items]
Weighted average fair value at measurement date, share options granted | $	$ 2,096
Black scholes [Member] | June 30, 2021
Disclosure of Shareholder's Equity [Line Items]
Weighted average fair value at measurement date, share options granted | $	120
Black scholes [Member] | November 3, 2021
Disclosure of Shareholder's Equity [Line Items]
Weighted average fair value at measurement date, share options granted | $	214
Black scholes [Member] | February 5, 2022
Disclosure of Shareholder's Equity [Line Items]
Weighted average fair value at measurement date, share options granted | $	171
Black scholes [Member] | December 21, 2022
Disclosure of Shareholder's Equity [Line Items]
Weighted average fair value at measurement date, share options granted | $	931
Black scholes [Member] | June 30, 2023
Disclosure of Shareholder's Equity [Line Items]
Weighted average fair value at measurement date, share options granted | $	203
Black scholes [Member] | June 30, 2023
Disclosure of Shareholder's Equity [Line Items]
Weighted average fair value at measurement date, share options granted | $	41
Black scholes [Member] | December 27, 2024
Disclosure of Shareholder's Equity [Line Items]
Weighted average fair value at measurement date, share options granted | $	$ 416

Shareholders' Equity - Summary

Shareholders' Equity - Summary of RSU Awards (Detail)	12 Months Ended
	Dec. 31, 2020CAD ($)$ / shares	Dec. 31, 2019CAD ($)$ / shares
Disclosure of Shareholder's Equity [Line Items]
Weighted average exercise price, Balance at beginning of year	$ 3.26	$ 4.17
Weighted average value options awarded	0	1.30
Weighted average exercise price, Balance at end of the year	$ 2.89	$ 3.26
Restricted Stock Units (RSUs) [Member]
Disclosure of Shareholder's Equity [Line Items]
Number of units Balance at beginning of year	1,065,000	368,997
Number of units RSUs awarded	0	990,000
Number of units RSUs settled and common shares issued	(98,334)	(289,997)
Number of units RSUs forfeited	(103,333)	(4,000)
Number of units Balance at Ending of year	863,333	1,065,000
Weighted average exercise price, Balance at beginning of year	$ 1.31	$ 5.01
Weighted average value options awarded	$ 0	$ 1.13
Weighted average RSUs settled and common shares issued | $	$ 2.79	$ 5.35
Weighted average value RSUs forfeited	$ 1.36	$ 6.49
Weighted average exercise price, Balance at end of the year	$ 1.13	$ 1.31

Shareholders' Equity - Share-Ba

Shareholders' Equity - Share-Based Payments Recognized (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of Shareholder's Equity [Abstract]
Expense recognized in the year for share-based payments	$ 983	$ 789

Shareholders' Equity - Computat

Shareholders' Equity - Computation of Basic and Diluted Loss Per Share (Detail) - CAD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Numerator
Net loss for the year	$ (263,429)	$ (128,758)
Denominator
For basic - weighted average number of shares outstanding	210,406,658	210,134,192
Effect of dilutive securities	0	0
For diluted - adjusted weighted average number of shares outstanding	210,406,658	210,134,192
Loss Per Share
Basic	$ (1.25)	$ (0.61)
Diluted	$ (1.25)	$ (0.61)

Shareholders' Equity - Addition

Shareholders' Equity - Additional Information (Detail) $ / shares in Units, $ in Thousands	Dec. 27, 2019shares	Jan. 31, 2021CAD ($)shares$ / shares	Dec. 31, 2020CAD ($)shares$ / shares	Dec. 31, 2019CAD ($)shares$ / shares
Disclosure of Shareholder's Equity [Line Items]
Number of share options granted in share-based payment arrangement	1,090,000	1,085,000	0	1,090,000
Description of vesting requirements for share-based payment arrangement	1/3 on December 27, 2020, 1/3 on December 27, 2021 and 1/3 on December 27, 2022.
Options with potential future dilutive effect not included in calculation of diluted earnings per share			2,455,002	(3,518,335)
Dividends declared and paid | $			$ 0	$ 0
Restricted stock units with potential future dilutive effect not included in calculation of diluted earnings per share			863,333	1,065,000
Weighted average remaining contractual life of outstanding share options (in years)			2 years 8 months 19 days	2 years 10 months 9 days
Share based compensation by share based payment arrangement exercise price per share | $ / shares			$ 0	$ 1.30
Common shares [member]
Disclosure of Shareholder's Equity [Line Items]
Common shares issued and fully paid			210,490,807
Restricted Stock Units [Member]
Disclosure of Shareholder's Equity [Line Items]
Number of other equity instruments exercised or vested in share-based payment arrangement			287,778	16,667
Share based compensation by share based payment arrangement exercise price per share | $ / shares			$ 0	$ 1.13
Share based compensation by share based payment arrangement equity instruments other than options granted during the period			0	990,000
Stock options granted [Member]
Disclosure of Shareholder's Equity [Line Items]
Share based compensation by share based payment arrangement exercise price per share | $ / shares		$ 0.65
Share based compensation by share based payment arrangement arrangement fair value of stock options granted | $		$ 344
Restricted stock units granted [Member] | Restricted Stock Units [Member]
Disclosure of Shareholder's Equity [Line Items]
Share based compensation by share based payment arrangement equity instruments other than options granted during the period		1,000,000
Share based compensation by share based payment arrangement equity instruments other than options granted during the period weighted average fair value per share | $ / shares		$ 0.64
Long-Term Equity Incentive Plan [Member]
Disclosure of Shareholder's Equity [Line Items]
Percentage of shares reserved for issue under options and contracts for sale of shares			10.00%
Number of instruments granted in share-based payment arrangement			21,049,081

Selling, General And Administ_3

Selling, General And Administrative Expenses - Disclosure of detailed information about Selling, general and administrative expense (Details) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Selling, General And Administrative Expenses
Selling and marketing	$ 5,259	$ 6,219
General and administrative:
Consulting fees and payroll	1,946	2,730
Share-based payment expense	983	789
Depreciation	218	218
Office and administration	878	608
Professional fees	2,588	1,032
Promotion and investor relations	428	322
Director fees	278	258
Transfer agent and regulatory fees	461	452
Travel	114	430
Selling, general and administrative expense	$ 13,153	$ 13,058

Derivative Assets And Liabili_3

Derivative Assets And Liabilities - Disclosure of detailed information about in derivative assets liabilities explanatory (Details) - CAD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Derivative Financial Instruments Assets And Liabilities [Line Items]
Derivative financial assets liabilities net	$ 185	$ 787
Current portion of derivative assets	23	587
Non-current derivative assets	162	200
Embedded Derivative [Member]
Disclosure Of Derivative Financial Instruments Assets And Liabilities [Line Items]
Derivative financial assets liabilities net	185	200
Current portion of derivative assets	23	0
Foreign currency contract derivative [Member]
Disclosure Of Derivative Financial Instruments Assets And Liabilities [Line Items]
Derivative financial assets liabilities net	0	587
Current portion of derivative assets	$ 0	$ 587

Derivative Assets And Liabili_4

Derivative Assets And Liabilities - Disclosure Of Information About Amounts That Affected Statement Of Comprehensive Income As Result Of Hedge Accounting (Details) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of Derivative Liabilities [Line Items]
(Losses) Gains on change in fair value of derivatives	$ 127	$ (1,214)
Currency Contracts [Member]
Disclosure of Derivative Liabilities [Line Items]
(Losses) Gains on change in fair value of derivatives	158	(163)
Embedded Derivative [Member]
Disclosure of Derivative Liabilities [Line Items]
(Losses) Gains on change in fair value of derivatives	$ (31)	$ (1,051)

Financial Instruments - Carryin

Financial Instruments - Carrying Amounts and Fair Values of Financial Assets and Financial Liabilities Levels In Fair Value Hierarchy (Detail) $ in Thousands, $ in Millions	Dec. 31, 2020CAD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019CAD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018CAD ($)
Financial assets designated as measured at fair value through profit or loss [Abstract]
Derivative assets	$ 185		$ 787
Financial assets classified as cash, amounts receivable and restricted cash, carrying amount	185		787
Financial assets designated as not measured at fair value [Abstract]
Cash	35,152		34,751		$ 30,708
Amounts receivable	797		1,688
Restricted cash	15,019		0
Financial assets classified as cash, amounts receivable and restricted cash, carrying amount	50,968		36,439
Designated financial liabilities at not fair value through profit or loss [Abstract]
Accounts payable and accrued liabilities	41,010		47,319
Dunebridge revolving credit facility	31,813		0
Secured notes payable	374,706	$ 299.9	378,869	$ 299.9
Financial liabilities classified as derivative liabilities, accounts payable and accrued liabilities, carrying amount	447,529		426,188
Financial liabilities at fair value through profit or loss, category [member]
Financial assets designated as measured at fair value through profit or loss [Abstract]
Derivative assets	185		787
Financial assets classified as derivative assets amounts receivable and restricted cash carrying amount	185		787
Financial assets designated as not measured at fair value [Abstract]
Cash	0		0
Amounts receivable	0		0
Restricted cash	0
Financial assets classified as cash, amounts receivable and restricted cash, carrying amount	0		0
Designated financial liabilities at not fair value through profit or loss [Abstract]
Accounts payable and accrued liabilities	0		0
Dunebridge revolving credit facility	0
Secured notes payable	0		0
Financial liabilities classified as derivative liabilities, accounts payable and accrued liabilities, carrying amount	0		0
Financial liabilities at amortised cost, category [member]
Financial assets designated as measured at fair value through profit or loss [Abstract]
Derivative assets	0		0
Financial assets classified as cash, amounts receivable and restricted cash, carrying amount	0
Financial assets designated as not measured at fair value [Abstract]
Cash	0		0
Amounts receivable	0		0
Restricted cash	0
Financial assets classified as cash, amounts receivable and restricted cash, carrying amount	0		0
Designated financial liabilities at not fair value through profit or loss [Abstract]
Accounts payable and accrued liabilities	41,010		47,319
Dunebridge revolving credit facility	31,813
Secured notes payable	374,706		378,869
Financial liabilities classified as derivative liabilities, accounts payable and accrued liabilities, carrying amount	447,529		426,188
Cash at fair falue [Member]
Financial assets designated as measured at fair value through profit or loss [Abstract]
Derivative assets	185		787
Financial assets designated as not measured at fair value [Abstract]
Cash	35,152		34,751
Amounts receivable	797		1,688
Restricted cash	15,019
Designated financial liabilities at not fair value through profit or loss [Abstract]
Accounts payable and accrued liabilities	41,010		47,319
Dunebridge revolving credit facility	31,813
Secured notes payable	329,632		378,083
Financial assets at amortised cost, category [member]
Financial assets designated as measured at fair value through profit or loss [Abstract]
Derivative assets	0		0
Financial assets classified as cash, amounts receivable and restricted cash, carrying amount	0		0
Financial assets designated as not measured at fair value [Abstract]
Cash	35,152		34,751
Amounts receivable	797		1,688
Restricted cash	15,019
Financial assets classified as cash, amounts receivable and restricted cash, carrying amount	50,968		36,439
Designated financial liabilities at not fair value through profit or loss [Abstract]
Accounts payable and accrued liabilities	0		0
Dunebridge revolving credit facility	0
Secured notes payable	0		0
Financial liabilities classified as derivative liabilities, accounts payable and accrued liabilities, carrying amount	0		0
Level 1 of fair value hierarchy [member]
Financial assets designated as measured at fair value through profit or loss [Abstract]
Derivative assets	0		0
Financial assets designated as not measured at fair value [Abstract]
Cash	35,152		34,751
Amounts receivable	797		1,688
Restricted cash	15,019
Designated financial liabilities at not fair value through profit or loss [Abstract]
Accounts payable and accrued liabilities	41,010		47,319
Dunebridge revolving credit facility	0
Secured notes payable	329,632		378,083
Level 2 of fair value hierarchy [member]
Financial assets designated as measured at fair value through profit or loss [Abstract]
Derivative assets	185		787
Financial assets designated as not measured at fair value [Abstract]
Cash	0		0
Amounts receivable	0		0
Restricted cash	0
Designated financial liabilities at not fair value through profit or loss [Abstract]
Accounts payable and accrued liabilities	0		0
Dunebridge revolving credit facility	31,813
Secured notes payable	0		0
Level 3 of fair value hierarchy [member]
Financial assets designated as measured at fair value through profit or loss [Abstract]
Derivative assets	0		0
Financial assets designated as not measured at fair value [Abstract]
Cash	0		0
Amounts receivable	0		0
Restricted cash	0
Designated financial liabilities at not fair value through profit or loss [Abstract]
Accounts payable and accrued liabilities	0		0
Dunebridge revolving credit facility	0
Secured notes payable	$ 0		$ 0

Financial Instruments - Contrac

Financial Instruments - Contractual Maturities of Significant Financial Liabilities and Capital Commitments Including Contractual Obligations (Detail) $ in Thousands	Dec. 31, 2024CAD ($)	Dec. 31, 2021CAD ($)	Dec. 31, 2020CAD ($)	Dec. 31, 2020USD ($)
Disclosure of detailed information about financial instruments [line items]
Notes payable - Principal			$ 381,674
Notes payable - Interest			61,916
Total of financial liabilities, capital commitments including obligations			520,654
Gahcho Kue Diamond Mine [Member]
Disclosure of detailed information about financial instruments [line items]
Mine commitments			4,058
Decommissioning fund			40,000
Dunebridge Worldwide LTD [Member]
Disclosure of detailed information about financial instruments [line items]
Revolving credit facility principal				$ 31,813
Revolving credit facility interest				1,193
Less than 1 Year
Disclosure of detailed information about financial instruments [line items]
Mine commitments		$ 10,000	15,000
Notes payable - Principal			0
Notes payable - Interest			30,958
Total of financial liabilities, capital commitments including obligations			78,022
Less than 1 Year | Gahcho Kue Diamond Mine [Member]
Disclosure of detailed information about financial instruments [line items]
Mine commitments			4,058
Decommissioning fund			10,000
Less than 1 Year | Dunebridge Worldwide LTD [Member]
Disclosure of detailed information about financial instruments [line items]
Revolving credit facility principal				31,813
Revolving credit facility interest				1,193
1 to 3 Years
Disclosure of detailed information about financial instruments [line items]
Notes payable - Principal			381,674
Notes payable - Interest			30,958
Total of financial liabilities, capital commitments including obligations			432,632
1 to 3 Years | Gahcho Kue Diamond Mine [Member]
Disclosure of detailed information about financial instruments [line items]
Mine commitments			0
Decommissioning fund			20,000
1 to 3 Years | Dunebridge Worldwide LTD [Member]
Disclosure of detailed information about financial instruments [line items]
Revolving credit facility principal				0
Revolving credit facility interest				0
4 to 5 Years
Disclosure of detailed information about financial instruments [line items]
Mine commitments	$ 10,000
Notes payable - Principal			0
Notes payable - Interest			0
Total of financial liabilities, capital commitments including obligations			10,000
4 to 5 Years | Gahcho Kue Diamond Mine [Member]
Disclosure of detailed information about financial instruments [line items]
Mine commitments			0
Decommissioning fund			10,000
4 to 5 Years | Dunebridge Worldwide LTD [Member]
Disclosure of detailed information about financial instruments [line items]
Revolving credit facility principal				0
Revolving credit facility interest				0
After 5 Years
Disclosure of detailed information about financial instruments [line items]
Notes payable - Principal			0
Notes payable - Interest			0
Total of financial liabilities, capital commitments including obligations			0
After 5 Years | Gahcho Kue Diamond Mine [Member]
Disclosure of detailed information about financial instruments [line items]
Mine commitments			0
Decommissioning fund			$ 0
After 5 Years | Dunebridge Worldwide LTD [Member]
Disclosure of detailed information about financial instruments [line items]
Revolving credit facility principal				0
Revolving credit facility interest				$ 0

Financial Instruments - Disclos

Financial Instruments - Disclosure of Net Assets and Liabilities (Detail) $ in Thousands, $ in Millions	Dec. 31, 2020CAD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019CAD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018CAD ($)
Disclosure of detailed information about financial instruments [line items]
Cash	$ 35,152		$ 34,751		$ 30,708
Derivative assets	162		200
Accounts payable and accrued liabilities	(41,010)		(47,319)
Secured notes payable	(374,706)	$ (299.9)	(378,869)	$ (299.9)
Currency denominated by Canadian dollar [Member]
Disclosure of detailed information about financial instruments [line items]
Cash	33,703		31,682
Derivative assets	185		200
Accounts payable and accrued liabilities	(2,538)		(3,346)
Dunebridge revolving credit facility	(31,813)		0
Secured notes payable	(381,674)		(389,262)
Total	$ (382,137)		$ (360,726)

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail) $ in Thousands, $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2020USD ($)	Dec. 31, 2020CAD ($)Carats	Dec. 31, 2020USD ($)Carats	Dec. 31, 2019CAD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Disclosure Of Financial Instruments [Line Items]
Trade and other current receivables		$ 797		$ 1,688
Secured bank loans received		$ 374,706		378,869	$ 299.9	$ 299.9
Percentage of entity's revenue		49.00%	49.00%
Run of Mine Diamonds | Dunebridge [member]
Disclosure Of Financial Instruments [Line Items]
Estimated amount of sales to related party	$ 50		$ 100
Revenue from transaction with related party			$ 49.4
Estimated quantity of sales to related party | Carats		10.8	10.8
Credit risk [member]
Disclosure Of Financial Instruments [Line Items]
Trade and other current receivables		$ 797		1,688
10% Change [Member]
Disclosure Of Financial Instruments [Line Items]
Increase (decrease) in net income		38,200		36,100
First lien revolving credit facility [Member]
Disclosure Of Financial Instruments [Line Items]
Secured bank loans received		381,700		389,300	299.9	299.9
Dunebridge RCF [Member]
Disclosure Of Financial Instruments [Line Items]
Secured bank loans received					$ 25	$ 0
Harmonized sales tax refunds [Member]
Disclosure Of Financial Instruments [Line Items]
Trade and other current receivables		$ 604		$ 936

Related Parties - Disclosure of

Related Parties - Disclosure of Related Parties Outstanding Balances (Detail) - CAD ($) $ in Thousands		Dec. 31, 2020	Dec. 31, 2019
Gk mine [Member]
Related party [Line Items]
Amounts payable, related party transactions	[1]	$ 2,789	$ 12,316
Key management personnel of entity or parent [member]
Related party [Line Items]
Amounts payable, related party transactions		158	567
De Beers Canada [Member]
Related party [Line Items]
Amounts payable, related party transactions		550	353
Dunebridge Worldwide Limited
Related party [Line Items]
Amounts payable, related party transactions		$ 31,813	$ 0
[1]	included in accounts payable and accrued liabilities

Related Parties - Disclosure _2

Related Parties - Disclosure of Related Parties Transactions (Detail) - CAD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
The total of the transactions:
Remuneration to key management personnel		$ 1,875	$ 2,467
Finance costs incurred	[1]	1,674	1,280
International investment and underwriting [Member]
The total of the transactions:
Settlement of liabilities by entity on behalf of related party, related party transactions		23	50
De beers canada inc [Member]
The total of the transactions:
Diamonds sold		12,610	12,582
Assets purchased from De Beers Canada Inc.		42	42
Gk mine [Member]
The total of the transactions:
Management fee charged by the Operator		4,368	4,153
De Beers Canada [Member]
The total of the transactions:
Diamonds purchased from De Beers Canada Inc.		11,523	16,775
Finance costs incurred		198	701
Dunebridge Worldwide Limited
The total of the transactions:
Diamonds sold		66,671	0
Finance costs incurred		$ 852	$ 0
[1]	Included in other finance costs for the year ended December 31, 2020 is $90 (2019 - $165) related to interest on lease liabilities.

Related Parties - Key Managemen

Related Parties - Key Management Personnel of Remuneration Expense of Directors and Other Members (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Related Party [Abstract]
Consulting fees, payroll, director fees, bonus and other short-term benefits	$ 1,357	$ 1,903
Share-based payments	541	614
Key management personnel compensation	$ 1,898	$ 2,517

Related Parties - Additional In

Related Parties - Additional Information (Detail) $ in Thousands, $ in Millions	Sep. 30, 2020USD ($)	Jun. 30, 2020USD ($)	Dec. 31, 2020CAD ($)Carats	Dec. 31, 2020USD ($)Carats	Dec. 31, 2024CAD ($)	Dec. 31, 2023CAD ($)	Dec. 31, 2022CAD ($)	Dec. 31, 2021CAD ($)	Dec. 31, 2019CAD ($)
Related party [Line Items]
Proportion of ownership interests held by non-controlling interests			49.00%	49.00%
Long-term deposits			$ 44,100						$ 23,300
Percentage of security deposit fee			3.00%
Total Decommissioning Fund			$ 55,000
Payment towards decommissioning fund			15,000
Not later than one year [member]
Related party [Line Items]
Commitments Period			$ 15,000					$ 10,000
Later Than Two Years [member]
Related party [Line Items]
Commitments Period							$ 10,000
Later Than Three Years [member]
Related party [Line Items]
Commitments Period						$ 10,000
Later than four years and not later than five years [member]
Related party [Line Items]
Commitments Period					$ 10,000
Gahcho Kue Diamond Mine [Member]
Related party [Line Items]
Proportion of ownership interests held by non-controlling interests			49.00%	49.00%
Commitments Period			$ 4,058
Gahcho Kue Diamond Mine [Member] | Not later than one year [member]
Related party [Line Items]
Commitments Period			4,058
Gahcho Kue Diamond Mine [Member] | Later than four years and not later than five years [member]
Related party [Line Items]
Commitments Period			$ 0
De Beers [member]
Related party [Line Items]
Percentage of security deposit fee			3.00%
De Beers [member] | Previously stated [member]
Related party [Line Items]
Percentage of security deposit fee			0.30%
Dunebridge [member]
Related party [Line Items]
Percenatge of profit share in future sales			10.00%
Dunebridge [member] | Dune Bridge Revolving Credit Facility [member]
Related party [Line Items]
Line of credit maximum borrowing capacity	$ 25
Borrowing interest rate	5.00%
Financing fees percentage	1.00%
Dunebridge [member] | Year One [member]
Related party [Line Items]
Fees amount as a percentage of revenue to related party			10.00%	10.00%
Dunebridge [member] | Year Two [member]
Related party [Line Items]
Fees amount as a percentage of revenue to related party			10.00%	10.00%
Dunebridge [member] | Year Three [member]
Related party [Line Items]
Fees amount as a percentage of revenue to related party			10.00%	10.00%
Dunebridge [member] | Run of Mine Diamonds [member]
Related party [Line Items]
Estimated amount of sales to related party		$ 50		$ 100
Estimated quantity of sales to related party | Carats			10.8	10.8
Revenue from transaction with related party				$ 49.4
Dunebridge [member] | Before Shareholders Approval [member] | Run of Mine Diamonds [member]
Related party [Line Items]
Estimated amount of sales to related party				50
Dunebridge [member] | After Shareholders Approval [member] | Run of Mine Diamonds [member]
Related party [Line Items]
Estimated amount of sales to related party				$ 100

Income Taxes - Disclosure of In

Income Taxes - Disclosure of Income Taxes Rate Reconciliation (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Income Tax [Abstract]
Loss before income taxes	$ (263,429)	$ (131,939)
Applicable tax rate	26.50%	26.50%
Tax expense calculated using statutory rates	$ (69,809)	$ (34,964)
Expenses not deductible (earnings not taxable)	(1,185)	(2,520)
Change in tax benefits not recognized	70,994	37,484
Current and deferred mining taxes	0	(3,181)
Income tax expenses	0	(3,181)
Current income taxes expenses	0	(7)
Deferred tax expense	$ 0	$ (3,174)

Income Taxes - Components of De

Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) - CAD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax liabilities
Inventory	$ (449)	$ 717
Property, plant & equipment	(30)	(6,562)
Derivative assets and debt	(519)	(53)
Deferred tax asset
Deferred tax (liability) asset	0	0
Non-capital loss carryforwards [member]
Deferred tax asset
Non-capital & capital loss carryforwards	$ 998	$ 5,898

Income Taxes - Unrecognized Def

Income Taxes - Unrecognized Deferred Tax Assets (Detail) - CAD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Income Tax [Line Items]
Deductible temporary differences for which no deferred tax asset is recognised	$ 528,540	$ 274,641
Property, plant and equipment [member]
Income Tax [Line Items]
Deductible temporary differences for which no deferred tax asset is recognised	104,795	8,823
Decommissioning and restoration liability [member]
Income Tax [Line Items]
Deductible temporary differences for which no deferred tax asset is recognised	71,923	58,273
Capital losses [member]
Income Tax [Line Items]
Deductible temporary differences for which no deferred tax asset is recognised	426	2,923
Non-capital losses, expiring 2034 to 2040 [member]
Income Tax [Line Items]
Deductible temporary differences for which no deferred tax asset is recognised	351,218	198,701
Share issuance cost [member]
Income Tax [Line Items]
Deductible temporary differences for which no deferred tax asset is recognised	178	150
Secured notes payable [member]
Income Tax [Line Items]
Deductible temporary differences for which no deferred tax asset is recognised	$ 0	$ 5,771

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Tax [Line Items]
Applicable tax rate	26.50%	26.50%
Unrecognized deductible temporary differences	$ 528,540	$ 274,641
Northwest Territories Mining Royalty [Member]
Income Tax [Line Items]
Unrecognized deductible temporary differences	$ 277,800	$ 57,800

Capital Management - Summary of

Capital Management - Summary of Company Capital (Detail) $ in Thousands, $ in Millions	Dec. 31, 2020CAD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019CAD ($)	Dec. 31, 2019USD ($)
Disclosure of objectives, policies and processes for managing capital [abstract]
Secured notes payable	$ 374,706	$ 299.9	$ 378,869	$ 299.9
Dunebridge revolving credit facility	31,813		0
Share capital	631,498		631,224
Share-based payments reserve	6,820		6,111
Deficit	(565,952)		(302,523)
Shareholder equity and other equity interest	$ 478,885		$ 713,681

Segmented Reporting - GK Mine O

Segmented Reporting - GK Mine Operations and KNP Resource Developed Exploration and Evaluation Programs (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of operating segments [line items]
Sales	$ 226,993	$ 276,334
Cost of sales:
Production costs	153,679	152,585
Cost of acquired diamonds	11,088	16,081
Depreciation and depletion	63,711	82,825
Loss from mine operations	(1,485)
Earnings from mine operations	(1,485)	24,843
Impairment loss on property, plant and equipment	217,366	115,753
Exploration and evaluation expenses	3,807	8,884
Selling, general and administrative expenses	13,153	13,058
Operating loss	(235,811)	(112,852)
Net finance expenses	(39,997)	(38,637)
Derivative gains (losses)	127	(1,214)
Foreign exchange gains (losses)	12,252	20,764
Net loss before taxes	(263,429)	(131,939)
Total assets	595,329	822,695
Total liabilities	521,629	486,549
Gk mine [Member]
Disclosure of operating segments [line items]
Sales	226,993	276,334
Cost of sales:
Production costs	153,679	152,585
Cost of acquired diamonds	11,088	16,081
Depreciation and depletion	63,711	82,825
Loss from mine operations	(1,485)
Earnings from mine operations		24,843
Impairment loss on property, plant and equipment	217,366	115,753
Exploration and evaluation expenses	1,076	4,754
Selling, general and administrative expenses	13,110	13,023
Operating loss	(233,037)	(108,687)
Net finance expenses	(39,920)	(38,635)
Derivative gains (losses)	127	(1,214)
Foreign exchange gains (losses)	12,252	20,765
Net loss before taxes	(260,578)	(127,771)
Total assets	424,272	651,898
Total liabilities	519,074	484,270
KNP [Member]
Disclosure of operating segments [line items]
Sales	0	0
Cost of sales:
Production costs	0	0
Cost of acquired diamonds	0	0
Depreciation and depletion	0	0
Loss from mine operations	0
Earnings from mine operations		0
Impairment loss on property, plant and equipment		0
Exploration and evaluation expenses	2,731	4,130
Selling, general and administrative expenses	43	35
Operating loss	(2,774)	(4,165)
Net finance expenses	(77)	(2)
Derivative gains (losses)	0	0
Foreign exchange gains (losses)	0	(1)
Net loss before taxes	(2,851)	(4,168)
Total assets	171,057	170,797
Total liabilities	$ 2,555	$ 2,279