Mountain Province Diamonds (MPVDF) 40-F 24 Mar 20 2019 FY Annual report (Canada) Financial data

Cover Page

Cover Page	12 Months Ended
	Dec. 31, 2019shares
Cover [Abstract]
Document Type	40-F
Amendment Flag	false
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2019
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	210,392,473

Consolidated Balance Sheets

Consolidated Balance Sheets - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets
Cash	$ 34,751	$ 30,708
Amounts receivable	1,688	2,478
Prepaid expenses and other	1,179	1,269
Derivative assets	587	0
Inventories	111,772	102,261
Total current assets	149,977	136,716
Reclamation deposit	250	250
Derivative assets	200	1,670
Property, plant and equipment	672,268	841,241
Total assets	822,695	979,877
Current liabilities
Accounts payable and accrued liabilities	47,319	48,295
Derivative liabilities	0	653
Decommissioning and restoration liability	2,445	0
Lease liabilities	811	0
Income taxes payable	0	574
Total current liabilities	50,575	49,522
Secured notes payable	378,869	408,144
Lease liabilities	1,034	0
Decommissioning and restoration liability	56,071	54,922
Deferred income tax liabilities	0	3,174
Shareholders' equity:
Share capital	631,224	629,796
Share-based payments reserve	6,111	6,750
Deficit	(302,523)	(173,765)
Accumulated other comprehensive income	1,334	1,334
Total shareholders' equity	336,146	464,115
Total liabilities and shareholders' equity	$ 822,695	$ 979,877

Consolidated Statements of Comp

Consolidated Statements of Comprehensive (Loss) Income - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Statement of comprehensive income [abstract]
Sales	$ 276,334	$ 310,969
Cost of sales:
Production costs	152,585	117,908
Cost of acquired diamonds	16,081	32,611
Depreciation and depletion	82,825	79,419
Earnings from mine operations	24,843	81,031
Impairment loss on property, plant and equipment	115,753	0
Exploration and evaluation expenses	8,884	8,204
Selling, general and administrative expenses	13,058	14,439
Operating (loss) income	(112,852)	58,388
Net finance expenses	(38,637)	(40,564)
Derivative losses	(1,214)	(247)
Foreign exchange gains (losses)	20,764	(32,474)
Other income	0	81
Loss before taxes	(131,939)	(14,816)
Current income taxes	7	(1,148)
Deferred income taxes	3,174	(2,970)
Total income taxes	3,181	(4,118)
Net loss for the year	(128,758)	(18,934)
Items that will not be reclassified subsequently to profit and loss:
Change in fair value of equity securities	0	1,334
Other comprehensive income	0	1,334
Total comprehensive loss for the year	$ (128,758)	$ (17,600)
Basic and diluted loss per share	$ (0.61)	$ (0.10)
Basic weighted average number of shares outstanding	210,134,192	195,968,588
Diluted weighted average number of shares outstanding	210,134,192	195,968,588

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, 2017	$ 334,742	$ 475,624	$ 5,549	$ (146,431)	$ 0
Balance (in Shares) at Dec. 31, 2017		160,253,501
Net income (loss) for the year	(18,934)	$ 0	0	(18,934)	0
Share-based payment	1,685	0	1,685	0	0
Issuance of common shares – restricted share unit	0	$ 484	(484)	0	0
Issuance of common shares – restricted share unit (in Shares)		111,668
Share issuance to acquire Kennady Diamonds Inc.	153,688	$ 153,688	0	0	0
Share issuance to acquire Kennady Diamonds Inc. (in shares)		49,737,307
Dividends declared and paid	(8,400)	$ 0	0	(8,400)	0
Financial assets at fair value through other comprehensive income
Gain on equity securities	1,334	0	0	0	1,334
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 income (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 unit	0	$ 1,428	(1,428)	0	0
Issuance of common shares – restricted share unit (in Shares)		289,997
Dividends declared and paid	0
Financial assets at fair value through other comprehensive income
Gain on equity securities	0
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

Consolidated Statements of Cash

Consolidated Statements of Cash Flows $ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019CAD ($)	Dec. 31, 2018CAD ($)
Operating activities:
Net loss for the year	$ (128,758)	$ (18,934)
Adjustments:
Net finance expenses	38,472	40,564
Depreciation and depletion	83,043	79,441
Impairment loss on property, plant and equipment	115,753	0
Share-based payment expense	789	1,685
Derivative losses	1,214	247
Foreign exchange losses (gains)	(20,764)	32,474
Current income taxes	(574)	574
Deferred income taxes	(3,174)	2,970
Total operating activities before non-cash operating working capital	86,001	139,021
Changes in non-cash operating working capital:
Amounts receivable	790	842
Prepaid expenses and other	90	2,314
Inventories	(6,740)	(15,633)
Accounts payable and accrued liabilities	(782)	9,359
Cash flows from (used in) operating activities	79,359	135,903
Investing activities:
Interest income	521	582
Purchase of property, plant and equipment	(28,095)	(76,062)
Cash acquired and transaction costs on asset acquisition of Kennady Diamonds Inc.	0	(4,193)
Cash flows from (used in) investing activities	(27,574)	(79,673)
Financing activities:
Payment of lease liabilities	(808)
Repurchase of secured notes	(13,158)	(26,366)
Financing costs	(33,513)	(33,371)
Payment of dividends	0	(8,400)
Cash flows from (used in) financing activities	(47,479)	(68,137)
Effect of foreign exchange rate changes on cash	(263)	(514)
Increase (decrease) in cash	4,043	(12,421)
Cash, beginning of year	30,708	43,129
Cash, end of year	$ 34,751	$ 30,708

Nature of Operations

Nature of Operations	12 Months Ended
	Dec. 31, 2019
Nature of Operations [Abstract]
Nature of Operations	1. NATURE OF OPERATIONS 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. On April 13, 2018, the Company completed the asset acquisition of Kennady Diamonds Inc. (formerly KDI.V on the TSX Venture exchange), which included 100% of the mineral rights of the Kennady North Project (“KNP”). KNP is involved in the exploration, discovery, evaluation and development of diamond properties in Canada’s Northwest Territories. 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. Subsequent to the year ended December 31, 2019, the Company voluntarily delisted its common shares from the NASDAQ. The underlying value and recoverability of the amounts shown as “Property, Plant and Equipment” (Note 8) are dependent upon future profitable production and proceeds from disposition of the Company’s mineral properties. Authorization of Financial Statements These consolidated financial statements were approved by the Board of Directors on March 23

Basis of Presentation

Basis of Presentation	12 Months Ended
	Dec. 31, 2019
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 equity securities and 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 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 has determined that its 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 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, 2019
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 value for RSU’s is 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 current tax assets against current tax liabilities and when they relate to income taxes levied by the same taxation authority and the Company intends to settle its current 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 evaluation and exploration 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. (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 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) New accounting policies adopted in the current period Leases Effective January 1, 2019, the Company adopted IFRS 16, Leases (“IFRS 16”), using the modified retrospective approach on transition, which specifies how to recognize, measure, present and disclose leases. The comparatives for the 2018 reporting period have not been restated and are accounted for under IAS 17, Leases, as permitted under the specific transitional provisions in the standard. IFRS 16 provides a single lessee accounting model, requiring lessees to recognize assets and liabilities for all major leases. The right-of-use 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 recognized a right-of-use right-of-use right-of-use right-of-use 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. At transition, for leases classified as operating leases under IAS 17, lease liabilities were measured at the present value of the remaining lease payments, discounted at the Company’s incremental borrowing rate as at January 1, 2019. Right-of-use On transition to IFRS 16, the Company elected to apply the practical expedient to grandfather the assessment of which transactions are leases. It applied IFRS 16 only to contracts that were previously identified as leases. The Company used the following practical expedients permitted by IFRS 16 on transition: ● the accounting for operating leases with a remaining least term of less than 12 months as at January 1, 2019 as short-term leases; ● the exclusion of initial direct costs from the measurement of the right-of-use ● the use of hindsight in determining the lease term where the contract contains options to extend or terminate the lease. Uncertainty over income tax treatments Effective January 1, 2019, the Company adopted issued IFRIC Interpretation 23, Uncertainty over Income Tax Treatments (“IFRIC 23”). IFRIC 23 provides guidance on the accounting for current and deferred tax liabilities and assets in circumstances in which there is uncertainty over income tax treatments. Upon adoption of IFRIC 23, there was no material impact to these consolidated financial statements. (xiv) Standards and amendments to existing standards At the date of authorization of these financial statements, certain new standards and amendments to existing standards have been published but are not yet effective, and have not been adopted early by the Company. The Company anticipates that all of the relevant standards will be adopted by the Company in the first period beginning after the effective date of the standard. Information on new standards and amendments that are expected to be relevant to the Company’s financial statements is provided below. Conceptual Framework On March 29, 2018 the IASB issued amendments to references to conceptual frameworks in IFRS Standards. These amendments are effective January 1, 2020. Management has concluded that there is currently no impact of the modified conceptual framework on the consolidated financial statements.

Significant Accounting Judgment

Significant Accounting Judgments Estimates and Assumptions	12 Months Ended
	Dec. 31, 2019
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, 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 significant amount of time. After the Company assessed for impairment, as at December 31, 2019, it was determined that an impairment loss of $115,753 on property, plant and equipment occurred. This impairment loss is specific to the GK Mine CGU. The Company’s assessment was that as at December 31, 2019 no indicator of an impairment in the carrying value of its evaluation and exploration assets related to KNP had occurred. The Company’s assessment was that as at December 31, 2018 no indicator of an impairment in the carrying value of its property, plant and equipment and evaluation and exploration assets had occurred. The GK Mine CGU’s recoverable amount of $510.1 million as at December 31, 2019 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; throughput and grade, revenues, operating costs, cost of selling diamonds, capital expenditures, foreign exchange rates and diamond price, including anticipated increases in pricing by way of improving market dynamics. 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 Sensitivities 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 $131 million. A 0.5% increment in the real growth escalation factor on diamond pricing would change the fair value less cost to sell by approximately $29 million. A 0.5% increment in the discount rate would change the fair value less cost to sell by approximately $11 million. If the GK Mine CGU were to continue to operate at current diamond pricing levels, there would be a further impairment charge. b) Leases The Company is required to make certain judgments in assessing lease liabilities and right-of-use right-of-use right-of-use 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. d) Business combinations Determination of whether a set of assets acquired and liabilities assumed constitute the acquisition of a business or asset may require may require the Company to make certain judgments as to whether or not the assets acquired and liabilities assumed include the inputs, processes and outputs necessary to constitute a business as defined in IFRS 3 – Business Combinations. Based on an assessment of the relevant facts and circumstances, the Company concluded that the acquisition of Kennady Diamonds Inc. on April 13, 2018 did not meet the criteria for accounting as a business combination (Note 6).

Amounts Receivable

Amounts Receivable	12 Months Ended
	Dec. 31, 2019
Disclosure Of Amounts Receivable [Abstract]
Amounts Receivable	5. AMOUNTS RECEIVABLE December 31, 2019 December 31, 2018 Receivable from sales agent $ - $ 180 GST/HST receivable 936 1,247 Other receivable 752 1,051 Total $ 1,688 $ 2,478

Acquisition of Kennady Diamonds

Acquisition of Kennady Diamonds Inc.	12 Months Ended
	Dec. 31, 2019
Disclosure of detailed information about business combination [abstract]
Acquisition of Kennady Diamonds Inc.	6. ACQUISITION OF KENNADY DIAMONDS INC. On January 29, 2018, the Company announced a definitive arrangement agreement pursuant to which the Company would acquire all of the issued and outstanding shares of Kennady Diamonds Inc. (“Kennady”) by way of a court-approved plan of arrangement (the “Transaction”). Under the terms of the Transaction, Kennady shareholders received 0.975 of a Mountain Province common share for each Kennady common share. During the three-month period ended March 31, 2018, the Company obtained 3,000,000 Kennady shares, by way of a private placement. On April 13, 2018, after all conditions precedent were satisfied , Until April 13, 2018, the 3,000,000 shares of Kennady obtained The purchase price allocation and the net assets acquired were as follows: Purchase price: Common shares issued $ 153,688 Purchase of equity securities prior to April 13, 2018 9,038 Company transaction costs 4,247 Total $ 166,973 Net assets acquired: Assets Cash $ 54 Amounts receivable 641 Prepaid expenses 119 Reclamation deposit 250 Property, plant and equipment 168,609 Liabilities Accounts payable and accrued liabilities (2,527 ) Decommissioning and restoration liability (173 ) Total $ 166,973

Inventories

Inventories	12 Months Ended
	Dec. 31, 2019
Disclosure Of Inventories Explanatory [Abstract]
Inventories	7. INVENTORIES December 31, 2019 December 31, 2018 Ore stockpile $ 8,592 $ 17,714 Rough diamonds 70,190 56,300 Supplies inventory 32,990 28,247 Total $ 111,772 $ 102,261 Depreciation and depletion included in inventories at December 31, 2019 is $23,894 (2018 - $21,519). The amount of inventory expensed approximates cost of sales with respect to production costs incurred, and the cost of acquired diamonds. Included in production costs, which are included in inventories, for the year ended December 31, 2019 are the Company’s 49% share of payroll and employee benefits for staff of the GK Mine of $38,318 (2018 - $34,017).

Property, Plant And Equipment

Property, Plant And Equipment	12 Months Ended
	Dec. 31, 2019
Disclosure of detailed information about property, plant and equipment [abstract]
Property, Plant and Equipment	8. PROPERTY, PLANT AND EQUIPMENT The Company’s property, plant and equipment as at December 31, 2019 and 2018 are as follows: Property, Assets under Property, Exploration and Assets under Total Cost At January 1, 2018 $ 707,399 $ 23,979 $ - $ - $ - $ 731,378 Decommissioning and restoration adjustment 23,553 - - - - 23,553 Additions/transfers* 89,154 (19,085 ) 90 166,947 1,564 238,670 At December 31, 2018 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 Impairment loss (See note 4(i)(a)) (115,753 ) - - - - (115,753 ) At December 31, 2019 $ 740,581 $ 730 $ 90 $ 168,866 $ 1,564 $ 911,831 Accumulated depreciation At January 1, 2018 $ (68,720 ) $ - $ - $ - $ - $ (68,720 ) Depreciation and depletion (83,630 ) - (10 ) - - (83,640 ) At December 31, 2018 (152,350 ) - (10 ) - - (152,360 ) Depreciation and depletion** (87,190 ) - (13 ) - - (87,203 ) At December 31, 2019 $ (239,540 ) $ - $ (23 ) $ - $ - $ (239,563 ) Carrying amounts At December 31, 2018 $ 667,756 $ 4,894 $ 80 $ 166,947 $ 1,564 $ 841,241 At December 31, 2019 $ 501,041 $ 730 $ 67 $ 168,866 $ 1,564 $ 672,268 *Included in additions of property, plant and equipment for GK is $23,896 (2018 - $32,776) related to deferred stripping of which $1,778 relates to the depreciation of earthmoving equipment (2018 - $2,741). **Included in depreciation and depletion is $1,093 of depreciation on the right-of-use

Decommissioning And Restoration

Decommissioning And Restoration Liability	12 Months Ended
	Dec. 31, 2019
Disclosure Of Decommissioning And Restoration Liability [Abstract]
Decommissioning and Restoration Liability	9. DECOMMISSIONING AND RESTORATION LIABILITY The decommissioning and restoration liability is the addition of 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, 2019 and 2018: December 31, 2019 December 31, 2018 Expected undiscounted cash flows $ 58,965 $ 56,122 Discount rate 1.76% 2.18% Inflation rate 1.35 % 1.95% Periods 2029 2029 The Kennady North Project decommissioning and restoration liability was calculated using the following assumptions as at December 31, 2019 and 2018: December 31, 2019 December 31, 2018 Expected undiscounted cash flows $ 2,235 $ 175 Discount rate 3.71% 1.86% Inflation rate 1.96% 1.95% Periods 2023 2021 The decommissioning and restoration liability has been calculated using expected cash flows that are current dollars, with inflation. During the year ended December 30, 2019, the decommissioning and restoration liability was increased by $2,490 for an increase in additional disturbance due to ongoing mining activity. During the year ended December 31, 2018, the decommissioning and restoration liability was increased by $24,892 for a change in estimate, reflecting primarily an increase in estimated reclamation and restoration costs due to the construction work completed at the GK mine site, the mining operations on the property, and a decrease in estimated reclamation and restoration costs due to minimal construction and exploration work performed at the KNP mine site. The continuity of the decommissioning and restoration liability at December 31, 2019 and 2018 is as follows: GK Mine KNP Total Balance, at January 1, 2018 $ 29,200 $ - $ 29,200 Addition of balance at the time of KDI acquisition - 173 173 Change in estimate of discounted cash flows 24,900 (8 ) 24,892 Accretion recorded during the year 656 1 657 Balance, at December 31, 2018 $ 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 $ 53,984 $ 2,087 $ 56,071

Lease Liabilities

Lease Liabilities	12 Months Ended
	Dec. 31, 2019
Lease liabilities [abstract]
Lease Liabilities	10. LEASE LIABILITIES On transition to IFRS 16, the Company recognized additional right-of-use right-of-use The impact on transition is summarized below: January 1, 2019 Right-of-use assets presented in property, plant and equipment $ 2,670 Lease liabilities $ 2,670 When measuring lease liabilities for leases that were classified as operating leases, the Company discounted lease payments using its incremental borrowing rate at January 1, 2019. The weighted average rate applied is approximately 5.4%. Operating lease commitments at December 31, 2018 $ 3,048 Discounted using the incremental borrowing rate at January 1, 2019 2,670 Lease obligations recognized at January 1, 2019 $ 2,670

Secured Notes Payable

Secured Notes Payable	12 Months Ended
	Dec. 31, 2019
Disclosure of secured notes payable [Abstract]
Secured Notes Payable	11. SECURED NOTES PAYABLE On December 11, 2017, the Company completed an offering of US$330 million aggregate principal amount of senior secured notes, secured by a second-ranking lien on all present and future assets, property and undertakings of the Company. The secured notes were sold at 97.992% of par, resulting in total proceeds of US$323.4 million. The secured notes pay interest in semi-annual instalments on June 15 and December 15 of each year, commencing on June 15, 2018, at a rate of 8.00% per annum, and mature on December 15, 2022. The Company incurred transaction costs of approximately $10 million, which have been offset against the carrying amount of the secured notes and are amortized using the effective interest rate method. The indenture governing the secured notes contains certain restrictive covenants that limit the Company’s ability to, among other things, incur additional indebtedness, make certain dividend payments and other restricted payments, and create certain liens, in each case subject to certain exceptions. The restrictive covenant on the Company’s ability to pay potential future dividends relates to a fixed charge coverage ratio of no less than 2:1. The fixed charge coverage ratio is calculated as EBITDA over interest expense. 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. As at December 31, 2019, the Company has an obligation for US$299.9 million or $389.3 million Canadian dollar equivalent from the secured notes payable (2018 - US$309.9 million or $422.3 million). December 31, 2019 December 31, 2018 Total outstanding secured notes payable $ 389,262 $ 422,262 Less: unamortized deferred transaction costs and issuance discount 10,393 14,118 Total secured notes payable $ 378,869 $ 408,144 During the year ended December 31, 2019, US$10 million or approximately $13.2 million Canadian dollar equivalent of secured notes payable was purchased by the Company from investors (2018 - US$20.06 million or approximately $26.4 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 (the “RCF”) with Scotiabank and Nedbank Ltd. in order to maintain a liquidity cushion for general corporate purposes. The RCF has a term of three years and the Company is subject to a quarterly commitment fee of between 0.9625% and 1.2375%, depending on certain leverage ratio calculations at the time. Upon drawing on the RCF, an interest rate of LIBOR plus 2.5% to 4.5% per annum is charged for the number of days the funds are outstanding, based on certain leverage ratio calculations at the time. As at December 31, 2019, the RCF remained undrawn. The RCF is subject to several financial covenants, in order to remain available. The following financial covenants are calculated on a quarterly basis, of which the first three are required to be met, in order for the RCF to remain available: ● Total leverage ratio of less than or equal to 4.50:1 calculated as total debt divided by EBITDA, up to and including December 31, 2019; and 4:1, thereafter until the maturity date. EBITDA in the RCF is defined as net earnings, plus, but only to the extent deducted in calculating net earnings (i) interest, (ii) income taxes, (iii) depreciation, non-cash expenses and losses, and (iv) amortization, excluding however any unusual items. ● A ratio of EBITDA to interest expense no less than 2.25:1 ● A tangible net worth that is no less than 75% of the tangible net worth as reflected in the September 30, 2017 financial statements provided to the administrative agent as a condition precedent to closing, plus 50% of the positive net income for each subsequent quarter date. ● Permitted distributions (which include dividends) are subject to the Company having a net debt to EBITDA ratio of less than or equal to 2.75:1 in 2018, 2.25:1 in 2019, and 1.75:1 in 2020. 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 RCF, (d) interest expenses and (e) any indebtedness (including mandatory prepayments) permitted under the existing agreement. The Company is in compliance with all financial covenants in order to remain available as at December 31, 2019.

Net Finance Expenses

Net Finance Expenses	12 Months Ended
	Dec. 31, 2019
Disclosure Of Net Finance Income Expense Explanatory [Abstract]
Net Finance Expenses	12. NET FINANCE EXPENSES Year ended December 31, 2019 Year ended December 31, 2018 Interest income $ 521 $ 582 Accretion expense on decommissioning and restoration liability (1,104 ) (657 ) Interest expense (33,048 ) (34,628 ) Amortization of deferred financing costs (3,726 ) (4,216 ) Other finance costs* (1,280 ) (1,645 ) $ (38,637 ) $ (40,564 ) *Included in other finance costs for the year ended December 31, 2019 is $165 (2018 - $nil) related to interest on lease liabilities (Note 10).

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2019
Disclosure of Shareholder's Equity [Abstract]
Shareholders' Equity	13. 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, 2019 is 210,392,473. No dividends were declared and paid in the year ended December 31, 2019. In the year ended December 31, 2018, the Company declared and paid a dividend of $0.04 per common share totalling $8,400. iii. Stock options, RSUs, DSUs and share-based payments reserve On June 13, 2019, the Company, through its Board of Directors and shareholders, adopted 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, 2019, the aggregate maximum number of shares pursuant to options granted under the Plan will not exceed 21,039,247 shares, and there were 16,455,912 shares available to be issued under the Plan. 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, 2019 Year ended December 31, 2018 Number of options Weighted average exercise price Number of options Weighted average exercise price Balance at beginning of the year 3,130,000 $ 4.17 3,640,000 $ 4.40 Granted during the year 1,090,000 1.30 240,000 3.30 Expired/forfeited during the year (701,665) 4.24 (750,000 ) 5.00 Balance at end of the year 3,518,335 $ 3.26 3,130,000 $ 4.17 Options exercisable at the end of the year 1,972,223 $ 4.32 2,183,334 $ 4.45 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, 2018 and 2019 periods. 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. The 200,000 stock options issued on June 30, 2018 vest 1/3 on July 1, 2019, 1/3 on July 1, 2020 and 1/3 on July 1, 2021. The 40,000 stock options issued on June 30, 2018 vest 1/2 on July 1, 2019 and 1/2 on July 1, 2020. December 31, 2019 December 31, 2018 Exercise price $ 1.30 $3.30 Expected volatility 43.33% 30.78% Expected option life 5 years 5 years Contractual option life 5 years 5 years Expected forfeiture none none Expected option cancellation none none Expected dividend yield 0% 0% Risk-free interest rate 1.64% 2.06% The following tables reflect the number of stock options outstanding, the weighted average of options outstanding, and the exercise price of stock options outstanding at December 31, 2019. The Black-Scholes values are measured at the grant date. At December 31, 2019 Expiry Date Black-Scholes Value Number of Options Number of Exercisable Options Exercise Price April 13, 2020 925 585,000 585,000 4.66 October 14, 2020 133 100,000 100,000 4.21 December 10, 2020 332 295,000 295,000 3.57 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 967 908,335 605,556 3.48 June 30, 2023 203 200,000 66,667 3.30 June 30, 2023 41 40,000 20,000 3.30 December 27, 2024 436 1,090,000 - 1.30 $ 3,542 3,518,335 1,972,223 $ 3.26 The weighted average remaining contractual life of the options outstanding at December 31, 2019 is 2.86 years (2018 - 2.63 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 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, 2019 December 31, 2018 RSU Number of units Weighted average value Number of units Weighted average value Balance at beginning of year 368,997 $ 5.01 488,665 $ 4.88 Awards and payouts during the period (net): RSUs awarded 990,000 1.13 - - RSUs settled and common shares issued (289,997) 5.35 (111,668) 4.33 RSUs forfeited (4,000) 6.49 (8,000) 6.49 Balance at end of the year* 1,065,000 $ 1.31 368,997 $ 5.01 *As at December 31, 2019, 16,667 RSUs (2018, 106,668 RSUs) at a weighted average value of $3.90 have vested and have not yet been settled. No DSU awards have been granted to date, therefore as at December 31, 2019 there are no DSUs outstanding. The share-based payments recognized as an expense for the years ended December 31, 2019 and 2018 are as follows: Year ended Year ended December 31, 2019 December 31, 2018 Expense recognized in the period for share-based payments $ 789 $ 1,685 The share-based payment expense for the years ended December 31, 2019 and 2018 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, 2019 Year ended December 31, 2018 Numerator Net loss for the year $ (128,758) $ (18,934) Denominator For basic - weighted average number of shares outstanding 210,134,192 195,968,588 Effect of dilutive securities - - For diluted - adjusted weighted average number of shares outstanding 210,134,192 195,968,588 Loss Per Share Basic $ (0.61) $ (0.10) Diluted $ (0.61) $ (0.10) For the years ended December 31, 2019, 3,518,335 stock options and 1,065,000 RSUs were not included in the calculation of diluted loss per share since to include them would be anti-dilutive (2018 - 3,130,000 stock options and 368,997 RSUs).

Selling, General And Administra

Selling, General And Administrative Expenses	12 Months Ended
	Dec. 31, 2019
Selling, General And Administrative Expenses
Selling, General And Administrative Expenses	14. SELLING, GENERAL AND ADMINISTRATIVE EXPENSES Year ended December 31, 2019 Year ended December 31, 2018 Selling and marketing $ 6,219 $ 6,607 General and administrative: Consulting fees and payroll 2,730 2,297 Share-based payment expense 789 1,685 Depreciation 218 21 Office and administration 608 879 Professional fees 1,032 1,579 Promotion and investor relations 322 264 Director fees 258 328 Transfer agent and regulatory fees 452 536 Travel 430 243 $ 13,058 $ 14,439

Derivative Assets And Liabiliti

Derivative Assets And Liabilities	12 Months Ended
	Dec. 31, 2019
Disclosure of Derivative Liabilities [Abstract]
Derivative Assets And Liabilities	15. DERIVATIVE ASSETS AND LIABILITIES The senior secured notes indenture grants the Company the option to prepay the notes prior to the maturity of the instruments, and specifies a premium during each applicable time period. These prepayment options have been accounted for as embedded derivatives and are outlined below. The Company may redeem the secured notes: ● during each of the two twelve-month periods commencing on December 11, 2017, in an amount not to exceed 10% of the aggregate principal amount of the secured notes at a redemption price equal to 103% of the principal amount of the secured notes redeemed, plus accrued and unpaid interest to the date of redemption; ● at any time and from time to time prior to December 15, 2019 in an aggregate principal amount not to exceed 40% of the aggregate principal amount of the secured notes with the proceeds of one or more qualifying equity offerings, at a redemption price equal to 108% 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, 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. 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. These derivatives have been classified as “non-hedge Foreign Currency Forward Contracts The table below provides a summary of currency contracts outstanding as at December 31, 2019. Execution Date of Contracts Settlement Dates of Contracts Notional Amount (CAD) Weighted Average Price (USD) Notional Amount (USD) May 29, 2019 January 7, 2020 to February 6, 2020 $ 13,430 $ 1.3430 $ 10,000 Total $ 13,430 $ 1.3430 $ 10,000 The following table presents the various derivatives as at December 31, 2019 and 2018: December 31, 2019 December 31 Prepayment option embedded derivatives $ 200 $ 1,670 Foreign currency contract derivative 587 (653 ) 787 1,017 Current portion of foreign currency contracts 587 (653 ) Current portion of derivative assets (liabilities) 587 (653 ) Non-current derivative assets $ 200 $ 1,670 The following table presents amounts recognized in the Consolidated Statement of Comprehensive Loss for the years ended December 31, 2019 and 2018: Year ended Year ended December 31, 2019 Loss on derivative contracts - $ (163 ) $ (653 ) (Loss) gain on prepayment option embedded derivative (1,051 ) 406 Total $ (1,214 ) $ (247 ) Subsequent to the year ended December 31, 2019, the Company executed foreign currency forward contracts to buy Canadian dollars and sell U.S. dollars for the period from March 2, 2020 to June 1, 2021 for notional amounts of US$80,000 or $108,525 with a weighted average price of $1.3566/US$1.

Financial Instruments

Financial Instruments	12 Months Ended
	Dec. 31, 2019
Disclosure of detailed information about financial instruments [abstract]
Financial Instruments	16. 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, 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 Carrying amount Fair value December 31, 2018 Assets at Fair value through Liabilities at Total Level 1 Level 2 Level 3 Total Financial assets measured at fair value Derivative assets $ - $ 1,670 $ - $ 1,670 $ - $ 1,670 $ - $ 1,670 $ - $ 1,670 $ - $ 1,670 Financial assets not measured at fair value Cash $ 30,708 $ - $ - $ 30,708 30,708 - - 30,708 Amounts receivable 2,478 - - 2,478 2,478 - - 2,478 $ 33,186 $ - $ - $ 33,186 Financial liabilities measured at fair value Derivative liabilities $ - $ 653 $ - $ 653 - 653 - 653 $ - $ 653 $ - $ 653 Financial liabilities not measured at fair value Accounts payable and accrued liabilities $ - $ - $ 48,295 $ 48,295 48,295 - - 48,295 Secured notes payable - - 408,144 408,144 412,976 - 412,976 $ - $ - $ 456,439 $ 456,439 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 15). 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 $1,688 and $2,478 as at December 31, 2019 and 2018, respectively, were collected. On December 31, 2019 and 2018, 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 $936 (2018 - $1,247). 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. The Company expects that it will be able to meet its obligations as they come due from the positive cash flows of ongoing operations. 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. At present, Covid-19 has impacted the Company’s anticipated tender sale scheduled for March 2020. While the Company believes that the revenue from the deferred sale will be realized in the following sales, and that the Company can continue to make sales on an as required basis, in the current environment the Company’s future sales efforts are subject to a significant degree of uncertainty. Also, the Company has an undrawn US$50 million first lien revolving credit facility (the “RCF”) with Scotiabank and Nedbank Ltd. in order to maintain a liquidity cushion for general corporate purposes. In order for the RCF to remain available, certain financial covenants must be met (Note 11). Being able to maintain positive cash flows from operations and the ability to comply with the RCF covenants, 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 Covid-19 pandemic. As at December 31, 2019, the Company has an obligation for US$299.9 million or $389.3 million Canadian dollar equivalent (2018 – US$309.9 million or $422.3 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, as mentioned in Note 11. The parties under the RCF are granted first priority, if amounts become drawn. Failure to meet the obligations of the secured notes payable as they come due may lead to the sale of the 49% participating interest in the GK Mine. The impact of recent developments on liquidity markets as a result of COVID-19 is still unknown. The Company continues to monitor the situation surrounding COVID-19 and is prepared to work collaboratively with lenders to fulfill its financial 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 $ 2,482 $ - $ - $ - $ 2,482 Revolving credit facility stand by charges 770 - - - 770 Notes payable - Principal - 389,262 - - 389,262 Notes payable - Interest 31,660 63,147 - - 94,807 Forward Exchange Contracts: (Inflows) (13,430) - - - (13,430) Outflows 12,978 - - - 12,978 $ 34,460 $ 452,409 $ - $ - $ 486,869 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, 2019 and 2018, since the secured notes payable does not have a variable interest rate. At December 31, 2019, the total secured notes payable was US$299.9 million (2018 – US$309.9 million). (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 of its 49% share of the GK Mine diamonds produced in U.S. dollars. As at December 31, 2019 and 2018, the Company had cash, accounts payable and accrued liabilities, derivative assets, derivative liabilities, financing costs payable and the secured notes payable that are in U.S. dollars. The Canadian dollar equivalent is as follows: December 31, December 31, 2019 2018 Cash $ 31,682 $ 16,837 Derivative assets 200 1,670 Accounts payable and accrued liabilities (3,346 ) (2,248 ) Derivative liabilities - (653 ) Secured notes payable (389,262 ) (422,262 ) Total $ (360,726 ) $ (406,656 ) A 10% appreciation or depreciation of the Canadian dollar relative to the U.S. dollar at December 31, 2019 and 2018 would have resulted in an increase or decrease to net income for the year of approximately $36.1 million and $40.7 million, respectively.

Related Parties

Related Parties	12 Months Ended
	Dec. 31, 2019
Disclosure Of Related Party [Abstract]
Related Parties	17. RELATED PARTIES The Company’s related parties include the Operator of the GK Mine, Dermot Desmond, Bottin and Vertigol Unlimited Company (“Vertigol”) (corporations ultimately beneficially owned by Dermot Desmond), key management and their close family members, and the Company’s directors. During the year ended December 31, 2018, Dermot Desmond and Bottin transferred all owned shares of the Company to Vertigol. Dermot Desmond, indirectly through Vertigol, is the ultimate beneficial owner of greater than 10% of the Company’s shares. Kennady Diamonds Inc. (“Kennady Diamonds”) was also a related party since the Company and Kennady Diamonds had a common member of key management, until the date of acquisition on April 13, 2018. International Investment and Underwriting Unlimited (“IIU”) is also a related party since it is ultimately beneficially owned by Mr. 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, Vertigol, IIU, the Operator of the GK Mine, and Kennady Diamonds. 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 Kennady Diamonds are for a monthly management fee charged by the Company for reimbursement of expenses paid on behalf of Kennady Diamonds. The transactions with IIU are for the director fees of the Chairman of the Company. Between 2014 and 2018, 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, 2019, the Company’s share of the letters of credit issued were $23.3 million (2018 - $23.3 million). Subsequent to the year ended December 31, 2019, 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, on the same day, 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 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 (Note 9). 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, 2019 and 2018 were as follows: December 31, December 31, 2019 2018 Payable De Beers Canada Inc. as the operator of the GK Mine* $ 12,316 $ 1,430 Payable to De Beers Canada Inc. for interest on letters of credit 353 352 Payable to key management personnel 567 57 *included in accounts payable and accrued liabilities The transactions for the years ended December 31, 2019 and 2018 were as follows: Year ended Year ended December 31, 2019 December 31, 2018 The total of the transactions: Kennady Diamonds $ - $ 30 International Investment and Underwriting 50 99 Remuneration to key management personnel 2,467 2,917 Diamonds sold to De Beers Canada Inc. 12,582 2,028 Diamonds purchased from De Beers Canada Inc. 16,775 29,774 Finance costs incurred from De Beers Canada Inc. 701 705 Assets purchased from De Beers Canada Inc. 42 - Management fee charged by the Operator of the GK Mine 4,153 4,153 The remuneration expense of directors and other members of key management personnel for the years ended December 31, 2019 and 2018 were as follows: Year ended Year ended December 31, 2019 December 31, 2018 Consulting fees, payroll, director fees, bonus and other short-term benefits $ 1,903 $ 1,643 Share-based payments 614 1,324 $ 2,517 $ 2,967 In accordance with International Accounting Standard 24 , non-executive)

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2019
Disclosure Of Income Tax [Abstract]
Income Taxes	18. INCOME TAXES Rate Reconciliation The provision for income tax differs from the amount that would have resulted by applying the combined Canadian statutory income tax rates of approximately 26.5% (2018 – 26.5%): December 31, 2019 December 31, 2018 (Loss) before income taxes $ (131,939 ) $ (14,816 ) 26.5% 26.5% Tax expense calculated using statutory rates (34,964 ) (3,926 ) Expenses not deductible (earnings not taxable) (2,520 ) 4,656 Change in tax benefits not recognized 37,484 (934 ) Current and deferred mining taxes (3,181 ) 4,322 Income tax expenses $ (3,181 ) $ 4,118 Current income tax expense $ (7 ) $ 1,148 Deferred tax expense $ (3,174 ) $ 2,970 Components of deferred tax assets and liabilities December 31, 2019 December 31, 2018 Deferred tax liabilities Inventory $ 717 $ (4,993 ) Property, plant & equipment (6,562 ) (25,275 ) Derivative assets (53 ) (443 ) Deferred tax asset Non-capital loss carryforwards 5,898 27,537 $ - $ (3,174 ) Unrecognized deferred tax assets Deductible temporary differences for which deferred tax assets have not been recognized are attributable to the following: December 31, 2019 December 31, 2018 Property, plant and equipment $ 8,823 $ 4,693 Decommissioning and restoration liability 58,273 57,929 Capital losses 2,923 3,200 Non-capital losses, expiring 2034 to 2039 198,701 34,247 Share issuance cost 150 1,250 Secured notes payable 5,771 36,995 $ 274,641 $ 138,314

Capital Management

Capital Management	12 Months Ended
	Dec. 31, 2019
Disclosure of objectives, policies and processes for managing capital [abstract]
Capital Management	19. 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. There is a restrictive covenant on the Company’s ability to pay potential future dividends, which relates to a fixed charge coverage ratio of no less than 2:1. The fixed charge coverage ratio is calculated as EBITDA over interest expense. The amount of the dividend, 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 reported from the quarter of issuance and up to the most recently available financial statements at the time of such restricted payment. Management reviews its capital management approach on an ongoing basis. The Company’s capital is summarized as follows: December 31, December 31, 2019 2018 Secured notes payable $ 378,869 $ 408,144 Share capital 631,224 629,796 Share-based payments reserve 6,111 6,750 Deficit (302,523) (173,765) $ 713,681 $ 870,925

Segmented Reporting

Segmented Reporting	12 Months Ended
	Dec. 31, 2019
Disclosure of Segmented Reporting [Abstract]
Segmented Reporting	20. 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, 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 income (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 As at and for the year ended December 31, 2018 GK Mine KNP Total Sales $ 310,969 $ - $ 310,969 Cost of sales: Production costs 117,908 - 117,908 Cost of acquired diamonds 32,611 - 32,611 Depreciation and depletion 79,419 - 79,419 Earnings from mine operations 81,031 - 81,031 Exploration and evaluation expenses 3,511 4,693 8,204 Selling, general and administrative expenses 14,391 48 14,439 Operating income (loss) 63,129 (4,741) 58,388 Net finance expenses (40,567) 3 (40,564) Derivative losses (247) - (247) Foreign exchange gains (losses) (32,473) (1) (32,474) Other income 81 - 81 Net loss before taxes $ (10,077) $ (4,739) $ (14,816) Total assets $ 810,901 $ 168,976 $ 979,877 Total liabilities $ 515,246 $ 516 $ 515,762 *The acquisition of KNP occurred on April 13, 2018 therefore the period is from the date of acquisition to December 31, 2018.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2019
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 value for RSU’s is 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.
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 current tax assets against current tax liabilities and when they relate to income taxes levied by the same taxation authority and the Company intends to settle its current 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 evaluation and exploration 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.
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 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.
New accounting policies adopted in the current period	(xiii) New accounting policies adopted in the current period Leases Effective January 1, 2019, the Company adopted IFRS 16, Leases (“IFRS 16”), using the modified retrospective approach on transition, which specifies how to recognize, measure, present and disclose leases. The comparatives for the 2018 reporting period have not been restated and are accounted for under IAS 17, Leases, as permitted under the specific transitional provisions in the standard. IFRS 16 provides a single lessee accounting model, requiring lessees to recognize assets and liabilities for all major leases. The right-of-use 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 recognized a right-of-use right-of-use right-of-use right-of-use 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. At transition, for leases classified as operating leases under IAS 17, lease liabilities were measured at the present value of the remaining lease payments, discounted at the Company’s incremental borrowing rate as at January 1, 2019. Right-of-use On transition to IFRS 16, the Company elected to apply the practical expedient to grandfather the assessment of which transactions are leases. It applied IFRS 16 only to contracts that were previously identified as leases. The Company used the following practical expedients permitted by IFRS 16 on transition: ● the accounting for operating leases with a remaining least term of less than 12 months as at January 1, 2019 as short-term leases; ● the exclusion of initial direct costs from the measurement of the right-of-use ● the use of hindsight in determining the lease term where the contract contains options to extend or terminate the lease. Uncertainty over income tax treatments Effective January 1, 2019, the Company adopted issued IFRIC Interpretation 23, Uncertainty over Income Tax Treatments (“IFRIC 23”). IFRIC 23 provides guidance on the accounting for current and deferred tax liabilities and assets in circumstances in which there is uncertainty over income tax treatments. Upon adoption of IFRIC 23, there was no material impact to these consolidated financial statements.
Standards and amendments to existing standards	(xiv) Standards and amendments to existing standards At the date of authorization of these financial statements, certain new standards and amendments to existing standards have been published but are not yet effective, and have not been adopted early by the Company. The Company anticipates that all of the relevant standards will be adopted by the Company in the first period beginning after the effective date of the standard. Information on new standards and amendments that are expected to be relevant to the Company’s financial statements is provided below. Conceptual Framework On March 29, 2018 the IASB issued amendments to references to conceptual frameworks in IFRS Standards. These amendments are effective January 1, 2020. Management has concluded that there is currently no impact of the modified conceptual framework on the consolidated financial statements.

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2019
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, 2019
Disclosure Of Amounts Receivable [Abstract]
Amounts Receivable	December 31, 2019 December 31, 2018 Receivable from sales agent $ - $ 180 GST/HST receivable 936 1,247 Other receivable 752 1,051 Total $ 1,688 $ 2,478

Acquisition of Kennady Diamon_2

Acquisition of Kennady Diamonds Inc. (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of detailed information about business combination [abstract]
Acquisition of Kennady Diamonds Inc.	The purchase price allocation and the net assets acquired were as follows: Purchase price: Common shares issued $ 153,688 Purchase of equity securities prior to April 13, 2018 9,038 Company transaction costs 4,247 Total $ 166,973 Net assets acquired: Assets Cash $ 54 Amounts receivable 641 Prepaid expenses 119 Reclamation deposit 250 Property, plant and equipment 168,609 Liabilities Accounts payable and accrued liabilities (2,527 ) Decommissioning and restoration liability (173 ) Total $ 166,973

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure Of Inventories Explanatory [Abstract]
Inventories	December 31, 2019 December 31, 2018 Ore stockpile $ 8,592 $ 17,714 Rough diamonds 70,190 56,300 Supplies inventory 32,990 28,247 Total $ 111,772 $ 102,261

Property, Plant And Equipment (

Property, Plant And Equipment (Tables)	12 Months Ended
	Dec. 31, 2019
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, 2019 and 2018 are as follows: Property, Assets under Property, Exploration and Assets under Total Cost At January 1, 2018 $ 707,399 $ 23,979 $ - $ - $ - $ 731,378 Decommissioning and restoration adjustment 23,553 - - - - 23,553 Additions/transfers* 89,154 (19,085 ) 90 166,947 1,564 238,670 At December 31, 2018 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 Impairment loss (See note 4(i)(a)) (115,753 ) - - - - (115,753 ) At December 31, 2019 $ 740,581 $ 730 $ 90 $ 168,866 $ 1,564 $ 911,831 Accumulated depreciation At January 1, 2018 $ (68,720 ) $ - $ - $ - $ - $ (68,720 ) Depreciation and depletion (83,630 ) - (10 ) - - (83,640 ) At December 31, 2018 (152,350 ) - (10 ) - - (152,360 ) Depreciation and depletion** (87,190 ) - (13 ) - - (87,203 ) At December 31, 2019 $ (239,540 ) $ - $ (23 ) $ - $ - $ (239,563 ) Carrying amounts At December 31, 2018 $ 667,756 $ 4,894 $ 80 $ 166,947 $ 1,564 $ 841,241 At December 31, 2019 $ 501,041 $ 730 $ 67 $ 168,866 $ 1,564 $ 672,268 *Included in additions of property, plant and equipment for GK is $23,896 (2018 - $32,776) related to deferred stripping of which $1,778 relates to the depreciation of earthmoving equipment (2018 - $2,741). **Included in depreciation and depletion is $1,093 of depreciation on the right-of-use

Decommissioning And Restorati_2

Decommissioning And Restoration Liability (Tables)	12 Months Ended
	Dec. 31, 2019
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, 2019 and 2018: December 31, 2019 December 31, 2018 Expected undiscounted cash flows $ 58,965 $ 56,122 Discount rate 1.76% 2.18% Inflation rate 1.35 % 1.95% Periods 2029 2029 The Kennady North Project decommissioning and restoration liability was calculated using the following assumptions as at December 31, 2019 and 2018: December 31, 2019 December 31, 2018 Expected undiscounted cash flows $ 2,235 $ 175 Discount rate 3.71% 1.86% Inflation rate 1.96% 1.95% Periods 2023 2021
Disclosure of detailed information about decommissioning and restoration liability activity	The continuity of the decommissioning and restoration liability at December 31, 2019 and 2018 is as follows: GK Mine KNP Total Balance, at January 1, 2018 $ 29,200 $ - $ 29,200 Addition of balance at the time of KDI acquisition - 173 173 Change in estimate of discounted cash flows 24,900 (8 ) 24,892 Accretion recorded during the year 656 1 657 Balance, at December 31, 2018 $ 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 $ 53,984 $ 2,087 $ 56,071

Lease Liabilities (Tables)

Lease Liabilities (Tables)	12 Months Ended
	Dec. 31, 2019
Lease liabilities [abstract]
Disclosure of impact on transition	January 1, 2019 Right-of-use assets presented in property, plant and equipment $ 2,670 Lease liabilities $ 2,670
Disclosure of operating lease commitements	Operating lease commitments at December 31, 2018 $ 3,048 Discounted using the incremental borrowing rate at January 1, 2019 2,670 Lease obligations recognized at January 1, 2019 $ 2,670

Secured Notes Payable (Tables)

Secured Notes Payable (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of secured notes payable [Abstract]
Disclosure of detailed information about secured notes	As at December 31, 2019, the Company has an obligation for US$299.9 million or $389.3 million Canadian dollar equivalent from the secured notes payable (2018 - US$309.9 million or $422.3 million). December 31, 2019 December 31, 2018 Total outstanding secured notes payable $ 389,262 $ 422,262 Less: unamortized deferred transaction costs and issuance discount 10,393 14,118 Total secured notes payable $ 378,869 $ 408,144

Net Finance Expenses (Tables)

Net Finance Expenses (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure Of Net Finance Income Expense Explanatory [Abstract]
Net Finance Expenses	Year ended December 31, 2019 Year ended December 31, 2018 Interest income $ 521 $ 582 Accretion expense on decommissioning and restoration liability (1,104 ) (657 ) Interest expense (33,048 ) (34,628 ) Amortization of deferred financing costs (3,726 ) (4,216 ) Other finance costs* (1,280 ) (1,645 ) $ (38,637 ) $ (40,564 ) *Included in other finance costs for the year ended December 31, 2019 is $165 (2018 - $nil) related to interest on lease liabilities (Note 10).

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2019
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, 2019 Year ended December 31, 2018 Number of options Weighted average exercise price Number of options Weighted average exercise price Balance at beginning of the year 3,130,000 $ 4.17 3,640,000 $ 4.40 Granted during the year 1,090,000 1.30 240,000 3.30 Expired/forfeited during the year (701,665) 4.24 (750,000 ) 5.00 Balance at end of the year 3,518,335 $ 3.26 3,130,000 $ 4.17 Options exercisable at the end of the year 1,972,223 $ 4.32 2,183,334 $ 4.45
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, 2018 and 2019 periods. 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. The 200,000 stock options issued on June 30, 2018 vest 1/3 on July 1, 2019, 1/3 on July 1, 2020 and 1/3 on July 1, 2021. The 40,000 stock options issued on June 30, 2018 vest 1/2 on July 1, 2019 and 1/2 on July 1, 2020. December 31, 2019 December 31, 2018 Exercise price $ 1.30 $3.30 Expected volatility 43.33% 30.78% Expected option life 5 years 5 years Contractual option life 5 years 5 years Expected forfeiture none none Expected option cancellation none none Expected dividend yield 0% 0% Risk-free interest rate 1.64% 2.06%
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, 2019 December 31, 2018 RSU Number of units Weighted average value Number of units Weighted average value Balance at beginning of year 368,997 $ 5.01 488,665 $ 4.88 Awards and payouts during the period (net): RSUs awarded 990,000 1.13 - - RSUs settled and common shares issued (289,997) 5.35 (111,668) 4.33 RSUs forfeited (4,000) 6.49 (8,000) 6.49 Balance at end of the year* 1,065,000 $ 1.31 368,997 $ 5.01 *As at December 31, 2019, 16,667 RSUs (2018, 106,668 RSUs) at a weighted average value of $3.90 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 years ended December 31, 2019 and 2018 are as follows: Year ended Year ended December 31, 2019 December 31, 2018 Expense recognized in the period for share-based payments $ 789 $ 1,685
Earnings per share	The following table sets forth the computation of basic and diluted loss per share: Year ended December 31, 2019 Year ended December 31, 2018 Numerator Net loss for the year $ (128,758) $ (18,934) Denominator For basic - weighted average number of shares outstanding 210,134,192 195,968,588 Effect of dilutive securities - - For diluted - adjusted weighted average number of shares outstanding 210,134,192 195,968,588 Loss Per Share Basic $ (0.61) $ (0.10) Diluted $ (0.61) $ (0.10)
Black scholes [Member]
Disclosure of Shareholder's Equity [Line Items]
Disclosure of number and weighted average exercise prices of other equity instruments	The following tables reflect the number of stock options outstanding, the weighted average of options outstanding, and the exercise price of stock options outstanding at December 31, 2019. The Black-Scholes values are measured at the grant date. At December 31, 2019 Expiry Date Black-Scholes Value Number of Options Number of Exercisable Options Exercise Price April 13, 2020 925 585,000 585,000 4.66 October 14, 2020 133 100,000 100,000 4.21 December 10, 2020 332 295,000 295,000 3.57 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 967 908,335 605,556 3.48 June 30, 2023 203 200,000 66,667 3.30 June 30, 2023 41 40,000 20,000 3.30 December 27, 2024 436 1,090,000 - 1.30 $ 3,542 3,518,335 1,972,223 $ 3.26

Selling, General And Administ_2

Selling, General And Administrative Expenses (Tables)	12 Months Ended
	Dec. 31, 2019
Selling, General And Administrative Expenses
Selling, General And Administrative Expenses	Year ended December 31, 2019 Year ended December 31, 2018 Selling and marketing $ 6,219 $ 6,607 General and administrative: Consulting fees and payroll 2,730 2,297 Share-based payment expense 789 1,685 Depreciation 218 21 Office and administration 608 879 Professional fees 1,032 1,579 Promotion and investor relations 322 264 Director fees 258 328 Transfer agent and regulatory fees 452 536 Travel 430 243 $ 13,058 $ 14,439

Derivative Assets And Liabili_2

Derivative Assets And Liabilities (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of Derivative Liabilities [Abstract]
Disclosure and detailed information about currency contracts outstanding	The table below provides a summary of currency contracts outstanding as at December 31, 2019. Execution Date of Contracts Settlement Dates of Contracts Notional Amount (CAD) Weighted Average Price (USD) Notional Amount (USD) May 29, 2019 January 7, 2020 to February 6, 2020 $ 13,430 $ 1.3430 $ 10,000 Total $ 13,430 $ 1.3430 $ 10,000
Disclosure of detailed information about in derivative assets liabilities explanatory	The following table presents the various derivatives as at December 31, 2019 and 2018: December 31, 2019 December 31 Prepayment option embedded derivatives $ 200 $ 1,670 Foreign currency contract derivative 587 (653 ) 787 1,017 Current portion of foreign currency contracts 587 (653 ) Current portion of derivative assets (liabilities) 587 (653 ) Non-current derivative assets $ 200 $ 1,670
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 years ended December 31, 2019 and 2018: Year ended Year ended December 31, 2019 Loss on derivative contracts - $ (163 ) $ (653 ) (Loss) gain on prepayment option embedded derivative (1,051 ) 406 Total $ (1,214 ) $ (247 )

Financial Instruments (Tables)

Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2019
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, 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 Carrying amount Fair value December 31, 2018 Assets at Fair value through Liabilities at Total Level 1 Level 2 Level 3 Total Financial assets measured at fair value Derivative assets $ - $ 1,670 $ - $ 1,670 $ - $ 1,670 $ - $ 1,670 $ - $ 1,670 $ - $ 1,670 Financial assets not measured at fair value Cash $ 30,708 $ - $ - $ 30,708 30,708 - - 30,708 Amounts receivable 2,478 - - 2,478 2,478 - - 2,478 $ 33,186 $ - $ - $ 33,186 Financial liabilities measured at fair value Derivative liabilities $ - $ 653 $ - $ 653 - 653 - 653 $ - $ 653 $ - $ 653 Financial liabilities not measured at fair value Accounts payable and accrued liabilities $ - $ - $ 48,295 $ 48,295 48,295 - - 48,295 Secured notes payable - - 408,144 408,144 412,976 - 412,976 $ - $ - $ 456,439 $ 456,439
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 $ 2,482 $ - $ - $ - $ 2,482 Revolving credit facility stand by charges 770 - - - 770 Notes payable - Principal - 389,262 - - 389,262 Notes payable - Interest 31,660 63,147 - - 94,807 Forward Exchange Contracts: (Inflows) (13,430) - - - (13,430) Outflows 12,978 - - - 12,978 $ 34,460 $ 452,409 $ - $ - $ 486,869
Disclosure of detailed information about net assets (liabilities)	As at December 31, 2019 and 2018, the Company had cash, accounts payable and accrued liabilities, derivative assets, derivative liabilities, financing costs payable and the secured notes payable that are in U.S. dollars. The Canadian dollar equivalent is as follows: December 31, December 31, 2019 2018 Cash $ 31,682 $ 16,837 Derivative assets 200 1,670 Accounts payable and accrued liabilities (3,346 ) (2,248 ) Derivative liabilities - (653 ) Secured notes payable (389,262 ) (422,262 ) Total $ (360,726 ) $ (406,656 )

Related Parties (Tables)

Related Parties (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure Of Related Party [Abstract]
Disclosure of detailed information about related parties outstanding balances	The balances as at December 31, 2019 and 2018 were as follows: December 31, December 31, 2019 2018 Payable De Beers Canada Inc. as the operator of the GK Mine* $ 12,316 $ 1,430 Payable to De Beers Canada Inc. for interest on letters of credit 353 352 Payable to key management personnel 567 57 *included in accounts payable and accrued liabilities
Disclosure of transactions between related parties	The transactions for the years ended December 31, 2019 and 2018 were as follows: Year ended Year ended December 31, 2019 December 31, 2018 The total of the transactions: Kennady Diamonds $ - $ 30 International Investment and Underwriting 50 99 Remuneration to key management personnel 2,467 2,917 Diamonds sold to De Beers Canada Inc. 12,582 2,028 Diamonds purchased from De Beers Canada Inc. 16,775 29,774 Finance costs incurred from De Beers Canada Inc. 701 705 Assets purchased from De Beers Canada Inc. 42 - Management fee charged by the Operator of the GK Mine 4,153 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 years ended December 31, 2019 and 2018 were as follows: Year ended Year ended December 31, 2019 December 31, 2018 Consulting fees, payroll, director fees, bonus and other short-term benefits $ 1,903 $ 1,643 Share-based payments 614 1,324 $ 2,517 $ 2,967

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure Of Income Tax [Abstract]
Disclosure of Rate Reconciliation	The provision for income tax differs from the amount that would have resulted by applying the combined Canadian statutory income tax rates of approximately 26.5% (2018 – 26.5%): December 31, 2019 December 31, 2018 (Loss) before income taxes $ (131,939 ) $ (14,816 ) 26.5% 26.5% Tax expense calculated using statutory rates (34,964 ) (3,926 ) Expenses not deductible (earnings not taxable) (2,520 ) 4,656 Change in tax benefits not recognized 37,484 (934 ) Current and deferred mining taxes (3,181 ) 4,322 Income tax expenses $ (3,181 ) $ 4,118 Current income tax expense $ (7 ) $ 1,148 Deferred tax expense $ (3,174 ) $ 2,970
Disclosure of deferred taxes	Components of deferred tax assets and liabilities December 31, 2019 December 31, 2018 Deferred tax liabilities Inventory $ 717 $ (4,993 ) Property, plant & equipment (6,562 ) (25,275 ) Derivative assets (53 ) (443 ) Deferred tax asset Non-capital loss carryforwards 5,898 27,537 $ - $ (3,174 )
Disclosure of Unrecognized deferred tax assets	Deductible temporary differences for which deferred tax assets have not been recognized are attributable to the following: December 31, 2019 December 31, 2018 Property, plant and equipment $ 8,823 $ 4,693 Decommissioning and restoration liability 58,273 57,929 Capital losses 2,923 3,200 Non-capital losses, expiring 2034 to 2039 198,701 34,247 Share issuance cost 150 1,250 Secured notes payable 5,771 36,995 $ 274,641 $ 138,314

Capital Management (Tables)

Capital Management (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of objectives, policies and processes for managing capital [abstract]
Capital Management	The Company’s capital is summarized as follows: December 31, December 31, 2019 2018 Secured notes payable $ 378,869 $ 408,144 Share capital 631,224 629,796 Share-based payments reserve 6,111 6,750 Deficit (302,523) (173,765) $ 713,681 $ 870,925

Segmented Reporting (Tables)

Segmented Reporting (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of Segmented Reporting [Abstract]
Disclosure and detailed information about revenue from segments	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 income (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 As at and for the year ended December 31, 2018 GK Mine KNP Total Sales $ 310,969 $ - $ 310,969 Cost of sales: Production costs 117,908 - 117,908 Cost of acquired diamonds 32,611 - 32,611 Depreciation and depletion 79,419 - 79,419 Earnings from mine operations 81,031 - 81,031 Exploration and evaluation expenses 3,511 4,693 8,204 Selling, general and administrative expenses 14,391 48 14,439 Operating income (loss) 63,129 (4,741) 58,388 Net finance expenses (40,567) 3 (40,564) Derivative losses (247) - (247) Foreign exchange gains (losses) (32,473) (1) (32,474) Other income 81 - 81 Net loss before taxes $ (10,077) $ (4,739) $ (14,816) Total assets $ 810,901 $ 168,976 $ 979,877 Total liabilities $ 515,246 $ 516 $ 515,762 *The acquisition of KNP occurred on April 13, 2018 therefore the period is from the date of acquisition to December 31, 2018.

Nature of Operations - Addition

Nature of Operations - Additional Information (Detail)	1 Months Ended	12 Months Ended
	Apr. 13, 2018	Dec. 31, 2019
Disclosure Of Nature of Operations and going concern [Line Items]
Proportion of ownership interests held by non-controlling interests		49.00%
Kennady North Project [Member]
Disclosure Of Nature of Operations and going concern [Line Items]
Proportion of ownership interest in joint operation	100.00%
Gahcho Kué 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, 2019
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%
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, 2019
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, 2019
Disclosure Of Significant Accounting Policies [Line Items]
Percentage of plant capacity	70.00%
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%

Significant Accounting Judgme_2

Significant Accounting Judgments Estimates and Assumptions - Additional information (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Accounting Judgements And Estimates Assumptions [Line Items]
Impairment loss on property, plant and equipment	$ 115,753	$ 0
Description of growth rate used to extrapolate cash flow projections	0.00%
Diamond Pricing [Member]
Disclosure Of Accounting Judgements And Estimates Assumptions [Line Items]
Change in rate	10.00%
Increase (decrease) in Fair Value	$ 131,000
Real Growth Escalation On Diamond Pricing [Member]
Disclosure Of Accounting Judgements And Estimates Assumptions [Line Items]
Description of growth rate used to extrapolate cash flow projections	2.50%
Change in rate	0.50%
Increase (decrease) in Fair Value	$ 29,000
Discount Rate [Member]
Disclosure Of Accounting Judgements And Estimates Assumptions [Line Items]
Change in rate	0.50%
Increase (decrease) in Fair Value	$ 11,000
Gk mine [Member]
Disclosure Of Accounting Judgements And Estimates Assumptions [Line Items]
Impairment loss on property, plant and equipment	115,753
Recoverable amount of asset	$ 510,100
Description of discount rates applied to cash flow projections	7.55%

Amounts Receivable - Detailed I

Amounts Receivable - Detailed Information about Amounts Receivable (Detail) - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Amounts Receivable [Abstract]
Receivable from sales agent	$ 0	$ 180
GST/HST receivable	936	1,247
Other receivable	752	1,051
Total	$ 1,688	$ 2,478

Acquisition of Kennady Diamon_3

Acquisition of Kennady Diamonds Inc. - Detailed Information about Purchase Price Allocation and Net Assets Acquired (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2019CAD ($)
Purchase price:
Common shares issued	$ 153,688
Purchase of equity securities prior to April 13, 2018	9,038
Company transaction costs	4,247
Total	166,973
Assets
Cash	54
Amounts receivable	641
Prepaid expenses	119
Reclamation deposit	250
Property, plant and equipment	168,609
Liabilities
Accounts payable and accrued liabilities	(2,527)
Decommissioning and restoration liability	(173)
Total	$ 166,973

Acquisition of Kennady Diamon_4

Acquisition of Kennady Diamonds Inc. - Additional Information (Detail) $ in Thousands	1 Months Ended		3 Months Ended		12 Months Ended
	Apr. 13, 2018shares	Jan. 29, 2018	Apr. 13, 2018shares	Mar. 31, 2018shares	Dec. 31, 2019CAD ($)	Dec. 31, 2018CAD ($)	Dec. 31, 2017CAD ($)
Disclosure of detailed information about business combination [abstract]
Stock exchange ratio		0.975
No of shares acquired through private placement			3,000,000	3,000,000
No of shares issued through business acquisition	49,737,307
No of shares acquired through business acquisition	51,012,599
Other comprehensive income, net of tax, financial assets measured at fair value through other comprehensive income | $						$ 1,334
Other comprehensive income | $					$ 0	$ 1,334	$ 0

Inventories - Detailed Informat

Inventories - Detailed Information about Inventories (Detail) - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Inventories Explanatory [Abstract]
Ore stockpile	$ 8,592	$ 17,714
Rough diamonds	70,190	56,300
Supplies inventory	32,990	28,247
Total	$ 111,772	$ 102,261

Inventories - Additional Inform

Inventories - Additional Information (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Inventories Explanatory [Abstract]
Depreciation and depletion included in inventories	$ 23,894	$ 21,519
Employee benefits expense	$ 38,318	$ 34,017
Percentage of payroll and employee benefits included in production costs	49.00%

Property, Plant and Equipment -

Property, Plant and Equipment - Detailed Information about Property, Plant and Equipment (Detail) - CAD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019		Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		$ 841,241
Impairment loss		(115,753)		$ 0
Ending balance		672,268		841,241
Gross carrying amount [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		993,601		731,378
Decommissioning and restoration adjustment		315		23,553
Additions/transfers	[1]	30,998		238,670
Impairment loss		(115,753)
Ending balance		911,831		993,601
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		(152,360)		(68,720)
Depreciation and depletion		(87,203)	[2]	(83,640)
Ending balance		(239,563)		(152,360)
Property, plant and equipment [Member] | Kennady North Project [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		80
Ending balance		67		80
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		0
Decommissioning and restoration adjustment		0		0
Additions/transfers	[1]	0		90
Impairment loss		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		(10)		0
Depreciation and depletion		(13)	[2]	(10)
Ending balance		(23)		(10)
Property, plant and equipment [Member] | Gahcho Kue Diamond Mine [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		667,756
Ending balance		501,041		667,756
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		820,106		707,399
Decommissioning and restoration adjustment		(1,604)		23,553
Additions/transfers	[1]	35,162		89,154
Impairment loss		(115,753)
Ending balance		740,581		820,106
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		(152,350)		(68,720)
Depreciation and depletion		(87,190)	[2]	(83,630)
Ending balance		(239,540)		(152,350)
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		0
Decommissioning and restoration adjustment		0		0
Additions/transfers	[1]	0		1,564
Impairment loss		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		0	[1],[2]	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		4,894
Ending balance		730		4,894
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		4,894		23,979
Decommissioning and restoration adjustment		0		0
Additions/transfers	[1]	(4,164)		(19,085)
Impairment loss		0
Ending balance		730		4,894
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		0	[1],[2]	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		166,947
Ending balance		168,866		166,947
Mining assets [member] | Kennady North Project [Member] | Gross carrying amount [member]
Disclosure of detailed information about property, plant and equipment [line items]
Beginning balance		166,947		0
Decommissioning and restoration adjustment		1,919		0
Additions/transfers	[1]	0		166,947
Impairment loss		0
Ending balance		168,866		166,947
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		0	[1],[2]	0
Ending balance		$ 0		$ 0
[1]	Included in additions of property, plant and equipment for GK is $23,896 (2018 - $32,776) related to deferred stripping of which $1,778 relates to the depreciation of earthmoving equipment (2018 - $2,741).
[2]	Included in depreciation and depletion is $1,093 of depreciation on the right-of-use assets capitalized under IFRS 16 (2018 - $nil)

Property, Plant and Equipment_2

Property, Plant and Equipment - Additional Information (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Depreciation and Depletion [Member] | IFRS 16 [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Depreciation right of use assets	$ 1,093	$ 0
Gahcho Kue Diamond Mine [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Additions of property plant and equipment	23,896	32,776
Gahcho Kue Diamond Mine [Member] | Earthmoving equipment [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Depreciation of earthmoving equipment	$ 1,778	$ 2,741

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, 2019	Dec. 31, 2018
GK Mine [Member]
Decommissioning And Restoration Liability [Line Items]
Expected undiscounted cash flows	$ 58,965	$ 56,122
Discount rate	1.76%	2.18%
Inflation rate	1.35%	1.95%
Periods	2029	2029
KNP [Member]
Decommissioning And Restoration Liability [Line Items]
Expected undiscounted cash flows	$ 2,235	$ 175
Discount rate	3.71%	1.86%
Inflation rate	1.96%	1.95%
Periods	2023	2021

Decommissioning And Restorati_4

Decommissioning And Restoration Liability - Summary of Decommissioning and Restoration Liability Activity (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Decommissioning And Restoration Liability [Line Items]
Balance, beginning of year	$ 54,922	$ 29,200
Addition of balance at the time of KDI acquisition		173
Change in estimate of discounted cash flows	2,490	24,892
Accretion recorded during the year	1,104	657
Balance, end of the year	58,516	54,922
Less: current portion of decommissioning and restoration liability	2,445	0
Non-current decommissioning and restoration liability	56,071	54,922
GK Mine [Member]
Decommissioning And Restoration Liability [Line Items]
Balance, beginning of year	54,756	29,200
Addition of balance at the time of KDI acquisition		0
Change in estimate of discounted cash flows	571	24,900
Accretion recorded during the year	1,102	656
Balance, end of the year	56,429	54,756
Less: current portion of decommissioning and restoration liability	2,445
Non-current decommissioning and restoration liability	53,984
KNP [Member]
Decommissioning And Restoration Liability [Line Items]
Balance, beginning of year	166	0
Addition of balance at the time of KDI acquisition		173
Change in estimate of discounted cash flows	1,919	(8)
Accretion recorded during the year	2	1
Balance, end of the year	2,087	$ 166
Less: current portion of decommissioning and restoration liability	0
Non-current decommissioning and restoration liability	$ 2,087

Decommissioning And Restorati_5

Decommissioning And Restoration Liability - Additional Information (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Decommissioning And Restoration Liability [Abstract]
Increase decrease in discounted cash flows of decommissioning restoration and rehabilitation provision	$ 2,490	$ 24,892

Lease Liabilities - Impact on T

Lease Liabilities - Impact on Transition (Detail) $ in Thousands	Jan. 01, 2019CAD ($)
Disclosure of quantitative information about right-of-use assets [line items]
Lease liabilities	$ 2,670
IFRS 16 [Member]
Disclosure of quantitative information about right-of-use assets [line items]
Lease liabilities	2,670
IFRS 16 [Member] | Property, plant and equipment [Member]
Disclosure of quantitative information about right-of-use assets [line items]
Right-of-use assets presented in property, plant and equipment	$ 2,670

Lease Liabilities - Operating L

Lease Liabilities - Operating Lease Comitements (Detail) - CAD ($) $ in Thousands	Jan. 01, 2019	Dec. 31, 2018
Lease liabilities [abstract]
Operating lease commitments		$ 3,048
Discounted using the incremental borrowing rate	$ 2,670
Lease obligations recognized	$ 2,670

Lease Liabilities - Additional

Lease Liabilities - Additional Information (Detail)	Jan. 01, 2019
Lease liabilities [abstract]
Weighted average incremental borrowing rate leases	5.40%

Secured Notes Payable - Summary

Secured Notes Payable - Summary of Secured Notes (Detail) $ in Thousands, $ in Thousands	Dec. 31, 2019CAD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018CAD ($)	Dec. 31, 2018USD ($)	Dec. 19, 2018USD ($)	Dec. 11, 2017USD ($)
Disclosure of secured notes payable [Line Items]
Total outstanding secured notes payable	$ 13,430	$ 10,000
Total secured notes payable	378,869	299,900	$ 408,144		$ 309,900
Senior secured notes [Member]
Disclosure of secured notes payable [Line Items]
Total outstanding secured notes payable	389,262	$ 299,900	422,262	$ 309,900		$ 330,000
Less: unamortized deferred transaction costs and issuance discount	10,393		14,118
Total secured notes payable	$ 378,869		$ 408,144

Secured Notes Payable - Additio

Secured Notes Payable - Additional Information (Detail) $ in Thousands, $ in Thousands	Dec. 11, 2017USD ($)	Dec. 31, 2019CAD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018CAD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Disclosure of secured notes payable [Line Items]
Notional amount		$ 13,430				$ 10,000
Undrawn borrowing facilities						$ 50,000
Description of range of percentages of commitment fee payable on credit facilities		The RCF has a term of three years and the Company is subject to a quarterly commitment fee of between 0.9625% and 1.2375%, depending on certain leverage ratio calculations at the time.	The RCF has a term of three years and the Company is subject to a quarterly commitment fee of between 0.9625% and 1.2375%, depending on certain leverage ratio calculations 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 is charged for the number of days the funds are outstanding, based on certain leverage ratio calculations at the time.	Upon drawing on the RCF, an interest rate of LIBOR plus 2.5% to 4.5% per annum is charged for the number of days the funds are outstanding, based on certain leverage ratio calculations at the time.
Description of financial ratios		Permitted distributions (which include dividends) are subject to the Company having a net debt to EBITDA ratio of less than or equal to 2.75:1 in 2018, 2.25:1 in 2019, and 1.75:1 in 2020. 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 RCF, (d) interest expenses and (e) any indebtedness (including mandatory prepayments) permitted under the existing agreement	Permitted distributions (which include dividends) are subject to the Company having a net debt to EBITDA ratio of less than or equal to 2.75:1 in 2018, 2.25:1 in 2019, and 1.75:1 in 2020. 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 RCF, (d) interest expenses and (e) any indebtedness (including mandatory prepayments) permitted under the existing agreement
Information about restrictions or covenants imposed debt agreement		The restrictive covenant on the Company’s ability to pay potential future dividends relates to a fixed charge coverage ratio of no less than 2:1. The fixed charge coverage ratio is calculated as EBITDA over interest expense. 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	The restrictive covenant on the Company’s ability to pay potential future dividends relates to a fixed charge coverage ratio of no less than 2:1. The fixed charge coverage ratio is calculated as EBITDA over interest expense. 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		$ 13,158	$ 10,000	$ 26,366	$ 20,060
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 is charged for the number of days the funds are outstanding, based on certain leverage ratio calculations at the time.	Upon drawing on the RCF, an interest rate of LIBOR plus 2.5% to 4.5% per annum is charged for the number of days the funds are outstanding, based on certain leverage ratio calculations 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%
EBITDA to interest expense ratio [Member]
Disclosure of secured notes payable [Line Items]
Description of financial ratios		A ratio of EBITDA to interest expense no less than 2.25:1	A ratio of EBITDA to interest expense no less than 2.25:1
Tangible net worth ratio [Member]
Disclosure of secured notes payable [Line Items]
Description of financial ratios		A tangible net worth that is no less than 75% of the tangible net worth as reflected in the September 30, 2017 financial statements provided to the administrative agent as a condition precedent to closing, plus 50% of the positive net income for each subsequent quarter date.	A tangible net worth that is no less than 75% of the tangible net worth as reflected in the September 30, 2017 financial statements provided to the administrative agent as a condition precedent to closing, plus 50% of the positive net income for each subsequent quarter date.
Senior secured notes [Member]
Disclosure of secured notes payable [Line Items]
Notional amount	$ 330,000	$ 389,262		$ 422,262		$ 299,900	$ 309,900
Par value percentage	97.992%
Proceeds from issue of bonds, notes and debentures	$ 323,400
Borrowings, interest rate	8.00%
Borrowing costs incurred		$ 10,000
Borrowings, maturity		mature on December 15, 2022	mature on December 15, 2022
Revolving Credit Facility1 [Member]
Disclosure of secured notes payable [Line Items]
Undrawn borrowing facilities						$ 50,000
Percentage of commitment fee		1.2375%	1.2375%

Net Finance Expenses - Summary

Net Finance Expenses - Summary of Finance Income Expenses (Detail) - CAD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Net Finance Income Expense Explanatory [Abstract]
Interest income		$ 521	$ 582
Accretion expense on decommissioning and restoration liability		(1,104)	(657)
Interest expense		(33,048)	(34,628)
Amortization of deferred financing costs		(3,726)	(4,216)
Other finance costs	[1]	(1,280)	(1,645)
Net finance income (expense)		$ (38,637)	$ (40,564)
[1]	Included in other finance costs for the year ended December 31, 2019 is $165 (2018 - $nil) related to interest on lease liabilities (Note 10).

Net Finance Expenses - Addition

Net Finance Expenses - Additional Information (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Net Finance Income Expense Explanatory [Abstract]
Interest expenses on lease liabilitites	$ 165	$ 0

Shareholders' Equity - Summary

Shareholders' Equity - Summary of Stock Options (Detail)	Dec. 27, 2019shares	Jun. 30, 2018shares	Dec. 31, 2019$ / shares	Dec. 31, 2018$ / shares
Disclosure of Shareholder's Equity [Abstract]
Number of options, Balance at beginning of year			3,130,000	3,640,000
Number of options, Granted during the year	1,090,000	200,000	1,090,000	240,000
Number of options, Expired/forfeited during the year			(701,665)	(750,000)
Number of options, Balance at end of the year			3,518,335	3,130,000
Number of options, Options exercisable at the end of the year			1,972,223	2,183,334
Weighted average exercise price, Balance at beginning of year			$ 4.17	$ 4.40
Weighted average exercise price, Granted during the year			1.30	3.30
Weighted average exercise price, Expired/forfeited during the year			4.24	5
Weighted average exercise price, Balance at end of the year			3.26	4.17
Weighted average exercise price, Options exercisable at the end of the year			$ 4.32	$ 4.45

Shareholders' Equity - Assumpti

Shareholders' Equity - Assumptions of Options Granted (Detail)	12 Months Ended
	Dec. 31, 2019yr$ / shares	Dec. 31, 2018yr$ / shares
Disclosure of Shareholder's Equity [Line Items]
Exercise price | $ / shares	$ 1.30	$ 3.30
Expected volatility	43.33%	30.78%
Expected option life (in years)	5	5
Contractual option life (in years)	5	5
Expected dividend yield	0.00%	0.00%
Risk-free interest rate	1.64%	2.06%

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, 2019CAD ($)$ / shares	Dec. 31, 2018$ / shares	Dec. 31, 2017$ / shares
Disclosure of Shareholder's Equity [Line Items]
Number of share options outstanding in share-based payment arrangement	3,518,335	3,130,000	3,640,000
Number of share options exercisable in share-based payment arrangement	1,972,223	2,183,334
Weighted average exercise price of share options outstanding in share-based payment arrangement | $ / shares	$ 3.26	$ 4.17	$ 4.40
April 13, 2020
Disclosure of Shareholder's Equity [Line Items]
Number of share options outstanding in share-based payment arrangement	585,000
Number of share options exercisable in share-based payment arrangement	585,000
Weighted average exercise price of share options outstanding in share-based payment arrangement | $ / shares	$ 4.66
October 14, 2020
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	$ 4.21
December 10, 2020
Disclosure of Shareholder's Equity [Line Items]
Number of share options outstanding in share-based payment arrangement	295,000
Number of share options exercisable in share-based payment arrangement	295,000
Weighted average exercise price of share options outstanding in share-based payment arrangement | $ / shares	$ 3.57
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	908,335
Number of share options exercisable in share-based payment arrangement	605,556
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	66,667
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	20,000
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	1,090,000
Number of share options exercisable in share-based payment arrangement	0
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 | $	$ 3,542
Black scholes [Member] | April 13, 2020
Disclosure of Shareholder's Equity [Line Items]
Weighted average fair value at measurement date, share options granted | $	925
Black scholes [Member] | October 14, 2020
Disclosure of Shareholder's Equity [Line Items]
Weighted average fair value at measurement date, share options granted | $	133
Black scholes [Member] | December 10, 2020
Disclosure of Shareholder's Equity [Line Items]
Weighted average fair value at measurement date, share options granted | $	332
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 | $	967
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 | $	$ 436

Shareholders' Equity - Summary

Shareholders' Equity - Summary of RSU Awards (Detail)	12 Months Ended
	Dec. 31, 2019CAD ($)$ / shares	Dec. 31, 2018CAD ($)$ / shares
Disclosure of Shareholder's Equity [Line Items]
Weighted average exercise price, Balance at beginning of year	$ 4.17	$ 4.40
Weighted average value options awarded	1.30	3.30
Weighted average exercise price, Balance at end of the year	$ 3.26	$ 4.17
Restricted Stock Units (RSUs) [Member]
Disclosure of Shareholder's Equity [Line Items]
Number of units Balance at beginning of year	368,997	488,665
Number of units RSUs awarded	990,000	0
Number of units RSUs settled and common shares issued	(289,997)	(111,668)
Number of units RSUs forfeited	(4,000)	(8,000)
Number of units Balance at Ending of year	1,065,000	368,997
Weighted average exercise price, Balance at beginning of year	$ 5.01	$ 4.88
Weighted average value options awarded	$ 1.13	$ 0
Weighted average RSUs settled and common shares issued | $	$ 5.35	$ 4.33
Weighted average value RSUs forfeited	$ 6.49	$ 6.49
Weighted average exercise price, Balance at end of the year	$ 1.31	$ 5.01

Shareholders' Equity - Share-Ba

Shareholders' Equity - Share-Based Payments Recognized (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of Shareholder's Equity [Abstract]
Expense recognized in the year for share-based payments	$ 789	$ 1,685

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, 2019	Dec. 31, 2018
Numerator
Net loss for the year	$ (128,758)	$ (18,934)
Denominator
For basic - weighted average number of shares outstanding	210,134,192	195,968,588
Effect of dilutive securities	0	0
For diluted - adjusted weighted average number of shares outstanding	210,134,192	195,968,588
Loss Per Share
Basic	$ (0.61)	$ (0.10)
Diluted	$ (0.61)	$ (0.10)

Shareholders' Equity - Addition

Shareholders' Equity - Additional Information (Detail) $ / shares in Units, $ in Thousands	Dec. 27, 2019shares	Jun. 30, 2018shares	Dec. 31, 2019CAD ($)shares$ / shares	Dec. 31, 2018CAD ($)shares$ / shares	Jun. 13, 2019
Disclosure of Shareholder's Equity [Line Items]
Number of share options granted in share-based payment arrangement	1,090,000	200,000	1,090,000	240,000
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	vest 1/3 on July 1, 2019, 1/3 on July 1, 2020 and 1/3 on July 1, 2021
Options with potential future dilutive effect not included in calculation of diluted earnings per share			3,518,335	3,130,000
Dividend per share | $ / shares			$ 0	$ 0.04
Dividends declared and paid | $			$ 0	$ 8,400
Restricted stock units with potential future dilutive effect not included in calculation of diluted earnings per share			1,065,000	368,997
Weighted average remaining contractual life of outstanding share options (in years)			2 years 10 months 9 days	2 years 7 months 17 days
Common shares [member]
Disclosure of Shareholder's Equity [Line Items]
Common shares issued and fully paid			210,392,473
Restricted Stock Units [Member]
Disclosure of Shareholder's Equity [Line Items]
Number of other equity instruments exercised or vested in share-based payment arrangement			16,667	106,668
Weighted average exercise price of other equity instruments exercised or vested in share-based payment arrangement | $ / shares			$ 3.90
Option Contract one [Member]
Disclosure of Shareholder's Equity [Line Items]
Number of share options granted in share-based payment arrangement		40,000
Description of vesting requirements for share-based payment arrangement		vest 1/2 on July 1, 2019 and 1/2 on July 1, 2020
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			21,039,247
Number of shares reserved for issue under options and contracts for sale of shares			16,455,912

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, 2019	Dec. 31, 2018
Selling, General And Administrative Expenses
Selling and marketing	$ 6,219	$ 6,607
General and administrative:
Consulting fees and payroll	2,730	2,297
Share-based payment expense	789	1,685
Depreciation	218	21
Office and administration	608	879
Professional fees	1,032	1,579
Promotion and investor relations	322	264
Director fees	258	328
Transfer agent and regulatory fees	452	536
Travel	430	243
Selling, general and administrative expense	$ 13,058	$ 14,439

Derivative Assets And Liabili_3

Derivative Assets And Liabilities - Disclosure and detailed information about currency contracts outstanding (Details) - 12 months ended Dec. 31, 2019 $ in Thousands, $ in Thousands	CAD ($)	USD ($)
Disclosure of Derivative Liabilities [Line Items]
Notional amount	$ 13,430	$ 10,000
Average foreign exchange rate	1.3430
January To February Contract [Member]
Disclosure of Derivative Liabilities [Line Items]
Notional amount	$ 13,430	$ 10,000
Average foreign exchange rate	1.3430

Derivative Assets And Liabili_4

Derivative Assets And Liabilities - Disclosure of detailed information about in derivative assets liabilities explanatory (Details) - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Derivative Financial Instruments Assets And Liabilities [Line Items]
Derivative financial assets liabilities net	$ 787	$ 1,017
Current portion of derivative assets (liabilities)	587	(653)
Non-current derivative assets	200	1,670
Embedded Derivative [Member]
Disclosure Of Derivative Financial Instruments Assets And Liabilities [Line Items]
Derivative financial assets liabilities net	200	1,670
Foreign currency contract derivative [Member]
Disclosure Of Derivative Financial Instruments Assets And Liabilities [Line Items]
Derivative financial assets liabilities net	587	(653)
Current portion of derivative assets (liabilities)	$ 587	$ (653)

Derivative Assets And Liabili_5

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, 2019	Dec. 31, 2018
Disclosure of Derivative Liabilities [Line Items]
(Losses) Gains on change in fair value of derivatives	$ (1,214)	$ (247)
Currency Contracts [Member]
Disclosure of Derivative Liabilities [Line Items]
(Losses) Gains on change in fair value of derivatives	(163)	(653)
Embedded Derivative [Member]
Disclosure of Derivative Liabilities [Line Items]
(Losses) Gains on change in fair value of derivatives	$ (1,051)	$ 406

Derivative Assets And Liabili_6

Derivative Assets And Liabilities - Additional Information (Detail) $ in Thousands, $ in Thousands	12 Months Ended	13 Months Ended
	Dec. 31, 2019CAD ($)	Jun. 01, 2021CAD ($)	Jun. 01, 2021USD ($)	Dec. 31, 2019USD ($)
Disclosure of Derivative Liabilities [Line Items]
Notional amount	$ 13,430			$ 10,000
Average foreign exchange rate	1.3430
Forward contract [member] | Subsequent Events [Member]
Disclosure of Derivative Liabilities [Line Items]
Notional amount		$ 108,525	$ 80,000
Average foreign exchange rate		1.3566

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, 2019CAD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018CAD ($)	Dec. 19, 2018USD ($)	Dec. 31, 2017CAD ($)
Financial assets designated as measured at fair value through profit or loss [Abstract]
Derivative assets	$ 787		$ 1,670
Financial assets classified as cash, amounts receivable and restricted cash, carrying amount	787		1,670
Financial assets designated as not measured at fair value [Abstract]
Cash	34,751		30,708		$ 43,129
Amounts receivable	1,688		2,478
Financial assets classified as cash, amounts receivable and restricted cash, carrying amount	36,439		33,186
Designated financial liabilities at fair value through profit or loss [Abstract]
Derivative liabilities			653
Financial liabilities, at fair value			653
Designated financial liabilities at not fair value through profit or loss [Abstract]
Accounts payable and accrued liabilities	47,319		48,295
Secured notes payable	378,869	$ 299.9	408,144	$ 309.9
Financial liabilities classified as derivative liabilities, accounts payable and accrued liabilities, carrying amount	426,188		456,439
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	787		1,670
Financial assets classified as cash, amounts receivable and restricted cash, carrying amount	787		1,670
Financial assets designated as not measured at fair value [Abstract]
Cash	0		0
Amounts receivable	0		0
Financial assets classified as cash, amounts receivable and restricted cash, carrying amount	0		0
Designated financial liabilities at fair value through profit or loss [Abstract]
Derivative liabilities			653
Financial liabilities, at fair value			653
Designated financial liabilities at not fair value through profit or loss [Abstract]
Accounts payable and accrued liabilities	0		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		0
Financial assets designated as not measured at fair value [Abstract]
Cash	0		0
Amounts receivable	0		0
Financial assets classified as cash, amounts receivable and restricted cash, carrying amount	0		0
Designated financial liabilities at fair value through profit or loss [Abstract]
Derivative liabilities			0
Financial liabilities, at fair value			0
Designated financial liabilities at not fair value through profit or loss [Abstract]
Accounts payable and accrued liabilities	47,319		48,295
Secured notes payable	378,869		408,144
Financial liabilities classified as derivative liabilities, accounts payable and accrued liabilities, carrying amount	426,188		456,439
Cash at fair falue [Member]
Financial assets designated as measured at fair value through profit or loss [Abstract]
Derivative assets	787		1,670
Financial assets designated as not measured at fair value [Abstract]
Cash	34,751		30,708
Amounts receivable	1,688		2,478
Designated financial liabilities at fair value through profit or loss [Abstract]
Derivative liabilities			653
Designated financial liabilities at not fair value through profit or loss [Abstract]
Accounts payable and accrued liabilities	47,319		48,295
Secured notes payable	378,083		412,976
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	34,751		30,708
Amounts receivable	1,688		2,478
Financial assets classified as cash, amounts receivable and restricted cash, carrying amount	36,439		33,186
Designated financial liabilities at fair value through profit or loss [Abstract]
Derivative liabilities			0
Financial liabilities, at fair value			0
Designated financial liabilities at not fair value through profit or loss [Abstract]
Accounts payable and accrued liabilities	0		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	34,751		30,708
Amounts receivable	1,688		2,478
Designated financial liabilities at fair value through profit or loss [Abstract]
Derivative liabilities			0
Designated financial liabilities at not fair value through profit or loss [Abstract]
Accounts payable and accrued liabilities	47,319		48,295
Secured notes payable	378,083		412,976
Level 2 of fair value hierarchy [member]
Financial assets designated as measured at fair value through profit or loss [Abstract]
Derivative assets	787		1,670
Financial assets designated as not measured at fair value [Abstract]
Cash	0		0
Amounts receivable	0		0
Designated financial liabilities at fair value through profit or loss [Abstract]
Derivative liabilities			653
Designated financial liabilities at not fair value through profit or loss [Abstract]
Accounts payable and accrued liabilities	0		0
Secured notes payable	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
Designated financial liabilities at fair value through profit or loss [Abstract]
Derivative liabilities			0
Designated financial liabilities at not fair value through profit or loss [Abstract]
Accounts payable and accrued liabilities	0		0
Secured notes payable	$ 0		$ 0

Financial Instruments - Contrac

Financial Instruments - Contractual Maturities of Significant Financial Liabilities and Capital Commitments Including Contractual Obligations (Detail) - CAD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2020	Dec. 31, 2019
Disclosure of detailed information about financial instruments [line items]
Revolving credit facility stand by charges			$ 770
Notes payable - Principal			389,262
Notes payable - Interest			94,807
Forward Exchange Contracts:
Forward Exchange Contracts Inflows			(13,430)
Forward Exchange Contracts Outflows			12,978
Total of financial liabilities, capital commitments including obligations			486,869
Gahcho Kue Diamond Mine [Member]
Disclosure of detailed information about financial instruments [line items]
Mine commitments			2,482
Less than 1 Year
Disclosure of detailed information about financial instruments [line items]
Mine commitments		$ 15
Revolving credit facility stand by charges			770
Notes payable - Principal			0
Notes payable - Interest			31,660
Forward Exchange Contracts:
Forward Exchange Contracts Inflows			(13,430)
Forward Exchange Contracts Outflows			12,978
Total of financial liabilities, capital commitments including obligations			34,460
Less than 1 Year | Gahcho Kue Diamond Mine [Member]
Disclosure of detailed information about financial instruments [line items]
Mine commitments			2,482
1 to 3 Years
Disclosure of detailed information about financial instruments [line items]
Revolving credit facility stand by charges			0
Notes payable - Principal			389,262
Notes payable - Interest			63,147
Forward Exchange Contracts:
Forward Exchange Contracts Inflows			0
Forward Exchange Contracts Outflows			0
Total of financial liabilities, capital commitments including obligations			452,409
1 to 3 Years | Gahcho Kue Diamond Mine [Member]
Disclosure of detailed information about financial instruments [line items]
Mine commitments			0
4 to 5 Years
Disclosure of detailed information about financial instruments [line items]
Mine commitments	$ 10
Revolving credit facility stand by charges			0
Notes payable - Principal			0
Notes payable - Interest			0
Forward Exchange Contracts:
Forward Exchange Contracts Inflows			0
Forward Exchange Contracts Outflows			0
Total of financial liabilities, capital commitments including obligations			0
4 to 5 Years | Gahcho Kue Diamond Mine [Member]
Disclosure of detailed information about financial instruments [line items]
Mine commitments			0
After 5 Years
Disclosure of detailed information about financial instruments [line items]
Revolving credit facility stand by charges			0
Notes payable - Principal			0
Notes payable - Interest			0
Forward Exchange Contracts:
Forward Exchange Contracts Inflows			0
Forward Exchange Contracts Outflows			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

Financial Instruments - Disclos

Financial Instruments - Disclosure of Net Assets and Liabilities (Detail) $ in Thousands, $ in Millions	Dec. 31, 2019CAD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018CAD ($)	Dec. 19, 2018USD ($)	Dec. 31, 2017CAD ($)
Disclosure of detailed information about financial instruments [line items]
Cash	$ 34,751		$ 30,708		$ 43,129
Derivative assets	200		1,670
Accounts payable and accrued liabilities	(47,319)		(48,295)
Secured notes payable	(378,869)	$ (299.9)	(408,144)	$ (309.9)
Currency denominated by Canadian dollar [Member]
Disclosure of detailed information about financial instruments [line items]
Cash	31,682		16,837
Derivative assets	200		1,670
Accounts payable and accrued liabilities	(3,346)		(2,248)
Derivative liabilities	0		(653)
Secured notes payable	(389,262)		(422,262)
Total	$ (360,726)		$ (406,656)

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail) $ in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2019CAD ($)	Dec. 31, 2018CAD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 19, 2018USD ($)
Disclosure Of Financial Instruments [Line Items]
Trade and other current receivables	$ 1,688	$ 2,478
Undrawn borrowing facilities			$ 50
Secured bank loans received	$ 378,869	408,144	299.9		$ 309.9
Percentage of entity's revenue	49.00%
10% Change [Member]
Disclosure Of Financial Instruments [Line Items]
Increase (decrease) in net income	$ 36,100	40,700
First lien revolving credit facility [Member]
Disclosure Of Financial Instruments [Line Items]
Secured bank loans received	389,300	422,300	$ 299.9	$ 309.9
Harmonized sales tax refunds [Member]
Disclosure Of Financial Instruments [Line Items]
Trade and other current receivables	$ 936	$ 1,247

Related Parties - Disclosure of

Related Parties - Disclosure of Related Parties Outstanding Balances (Detail) - CAD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018
Gk mine [Member]
Related party [Line Items]
Amounts payable, related party transactions	[1]	$ 12,316	$ 1,430
Key management personnel of entity or parent [member]
Related party [Line Items]
Amounts payable, related party transactions		567	57
De Beers Canada [Member]
Related party [Line Items]
Amounts payable, related party transactions		$ 353	$ 352
[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, 2019	Dec. 31, 2018
The total of the transactions:
Remuneration to key management personnel		$ 2,467	$ 2,917
Finance costs incurred from De Beers Canada Inc.	[1]	1,280	1,645
Kennady diamonds [Member]
The total of the transactions:
Settlement of liabilities by entity on behalf of related party, related party transactions		0	30
International investment and underwriting [Member]
The total of the transactions:
Settlement of liabilities by entity on behalf of related party, related party transactions		50	99
De beers canada inc [Member]
The total of the transactions:
Diamonds sold to De Beers Canada Inc.		12,582	2,028
Assets purchased from De Beers Canada Inc.		42
Gk mine [Member]
The total of the transactions:
Management fee charged by the Operator		4,153	4,153
De Beers Canada [Member]
The total of the transactions:
Diamonds purchased from De Beers Canada Inc.		16,775	29,774
Finance costs incurred from De Beers Canada Inc.		$ 701	705
Assets purchased from De Beers Canada Inc.			$ 0
[1]	Included in other finance costs for the year ended December 31, 2019 is $165 (2018 - $nil) related to interest on lease liabilities (Note 10).

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, 2019	Dec. 31, 2018
Disclosure Of Related Party [Abstract]
Consulting fees, payroll, director fees, bonus and other short-term benefits	$ 1,903	$ 1,643
Share-based payments	614	1,324
Key management personnel compensation	$ 2,517	$ 2,967

Related Parties - Additional In

Related Parties - Additional Information (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2018
Related party [Line Items]
Proportion of ownership interests held by non-controlling interests	49.00%
Long-term deposits	$ 23,300					$ 23,300
Percentage of security deposit fee	3.00%
Proportion of ownership interests held by non-controlling interests	49.00%
Total Decommissioning Fund	$ 55,000
Not later than one year [member]
Related party [Line Items]
Commitments Period					$ 15
Later Than Two Years [member]
Related party [Line Items]
Commitments Period				$ 10
Later Than Three Years [member]
Related party [Line Items]
Commitments Period			$ 10
Later than four years and not later than five years [member]
Related party [Line Items]
Commitments Period		$ 10
Gahcho Kue Diamond Mine [Member]
Related party [Line Items]
Proportion of ownership interests held by non-controlling interests	49.00%
Commitments Period	$ 2,482
Proportion of ownership interests held by non-controlling interests	49.00%
Gahcho Kue Diamond Mine [Member] | Not later than one year [member]
Related party [Line Items]
Commitments Period	$ 2,482
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	0.30%
De Beers [member] | Previously stated [member]
Related party [Line Items]
Percentage of security deposit fee						3.00%

Income Taxes - Disclosure of In

Income Taxes - Disclosure of Income Taxes Rate Reconciliation (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Income Tax [Abstract]
(Loss) before income taxes	$ (131,939)	$ (14,816)
Applicable tax rate	26.50%	26.50%	26.50%
Tax expense calculated using statutory rates	$ (34,964)	$ (3,926)
Expenses not deductible (earnings not taxable)	(2,520)	4,656
Change in tax benefits not recognized	37,484	(934)
Current and deferred mining taxes	(3,181)	4,322
Income tax expenses	(3,181)	4,118
Current income taxes expenses	(7)	1,148
Deferred tax expense	$ (3,174)	$ 2,970

Income Taxes - Components of De

Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred tax liabilities
Inventory	$ 717	$ (4,993)
Property, plant & equipment	(6,562)	(25,275)
Non-capital loss carryforwards	(53)	(443)
Deferred tax asset
Deferred tax (liability) asset	0	(3,174)
Non-capital loss carryforwards [Member]
Deferred tax asset
Non-capital loss carryforwards	$ 5,898	$ 27,537

Income Taxes - Unrecognized Def

Income Taxes - Unrecognized Deferred Tax Assets (Detail) - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Income Tax [Line Items]
Deductible temporary differences for which no deferred tax asset is recognised	$ 274,641	$ 138,314
Property, plant and equipment [member]
Income Tax [Line Items]
Deductible temporary differences for which no deferred tax asset is recognised	8,823	4,693
Decommissioning and restoration liability [member]
Income Tax [Line Items]
Deductible temporary differences for which no deferred tax asset is recognised	58,273	57,929
Capital losses [Member]
Income Tax [Line Items]
Deductible temporary differences for which no deferred tax asset is recognised	2,923	3,200
Non-capital losses, expiring 2034 to 2039 [member]
Income Tax [Line Items]
Deductible temporary differences for which no deferred tax asset is recognised	198,701	34,247
Share issuance cost [member]
Income Tax [Line Items]
Deductible temporary differences for which no deferred tax asset is recognised	150	1,250
Secured notes payable [member]
Income Tax [Line Items]
Deductible temporary differences for which no deferred tax asset is recognised	$ 5,771	$ 36,995

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax [Line Items]
Applicable tax rate	26.50%	26.50%	26.50%

Capital Management - Summary of

Capital Management - Summary of Company Capital (Detail) $ in Thousands, $ in Millions	Dec. 31, 2019CAD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018CAD ($)	Dec. 19, 2018USD ($)
Disclosure of objectives, policies and processes for managing capital [abstract]
Secured notes payable	$ 378,869	$ 299.9	$ 408,144	$ 309.9
Share capital	631,224		629,796
Share-based payments reserve	6,111		6,750
Deficit	(302,523)		(173,765)
Shareholder equity and other equity interest	$ 713,681		$ 870,925

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, 2019	Dec. 31, 2018
Disclosure of operating segments [line items]
Sales	$ 276,334	$ 310,969
Cost of sales:
Production costs	152,585	117,908
Cost of acquired diamonds	16,081	32,611
Depreciation and depletion	82,825	79,419
Earnings from mine operations	24,843	81,031
Impairment loss on property, plant and equipment	115,753	0
Exploration and evaluation expenses	8,884	8,204
Selling, general and administrative expenses	13,058	14,439
Operating income (loss)	(112,852)	58,388
Net finance expenses	(38,637)	(40,564)
Derivative losses	(1,214)	(247)
Foreign exchange gains (losses)	20,764	(32,474)
Other income	0	81
Net loss before taxes	(131,939)	(14,816)
Total assets	822,695	979,877
Total liabilities	486,549	515,762
Gk mine [Member]
Disclosure of operating segments [line items]
Sales	276,334	310,969
Cost of sales:
Production costs	152,585	117,908
Cost of acquired diamonds	16,081	32,611
Depreciation and depletion	82,825	79,419
Earnings from mine operations	24,843	81,031
Impairment loss on property, plant and equipment	115,753
Exploration and evaluation expenses	4,754	3,511
Selling, general and administrative expenses	13,023	14,391
Operating income (loss)	(108,687)	63,129
Net finance expenses	(38,635)	(40,567)
Derivative losses	(1,214)	(247)
Foreign exchange gains (losses)	20,765	(32,473)
Other income		81
Net loss before taxes	(127,771)	(10,077)
Total assets	651,898	810,901
Total liabilities	484,270	515,246
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
Earnings from mine operations	0	0
Impairment loss on property, plant and equipment	0
Exploration and evaluation expenses	4,130	4,693
Selling, general and administrative expenses	35	48
Operating income (loss)	(4,165)	(4,741)
Net finance expenses	(2)	3
Derivative losses	0	0
Foreign exchange gains (losses)	(1)	(1)
Other income		0
Net loss before taxes	(4,168)	(4,739)
Total assets	170,797	168,976
Total liabilities	$ 2,279	$ 516