XML 100 R47.htm IDEA: XBRL DOCUMENT
v3.25.1

Capital Management and Financial Risk (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2024
Capital Management And Financial Risk [Line Item] |
Capital management | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | At December 31 |  | At December 31
(in thousands) | ​ | 2024 | ​ | 2023
​ | ​ | ​ | ​ | ​ | ​ | ​
Net cash and investments: |  | ​ |  |  | ​ |
Cash and cash equivalents | ​ | $ | 108,518 | ​ | $ | 131,054
Equity instrument investments | ​ |  | 8,047 | ​ |  | 10,517
Investments-uranium | ​ |  | 231,088 | ​ |  | 276,815
Investments-convertible debentures | ​ | ​ | 13,000 | ​ | ​ | 15,565
Debt obligations-current | ​ |  | (375) | ​ |  | (213)
Net cash and investments | ​ | $ | 360,278 | ​ | $ | 433,738
Credit risk | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | At December 31 |  | At December 31
(in thousands) | ​ | 2024 | ​ | 2023
​ | ​ | ​ | ​ | ​ | ​ | ​
Cash and cash equivalents |  | $ | 108,518 |  | $ | 131,054
Trade and other receivables |  |  | 3,075 |  |  | 1,913
Restricted cash and investments |  |  | 11,624 |  |  | 11,231
Investments-convertible debentures | ​ | ​ | 13,000 | ​ | ​ | 15,565
​ |  | $ | 136,217 |  | $ | 159,763
Maturities of financial liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Within 1 |  | 1 to 5 |  | More than
(in thousands) | ​ | Year | ​ | Years | ​ | 5 years
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Accounts payable and accrued liabilities (note 9) |  | $ | 21,333 |  | ​ | — | ​ | ​ | —
Debt obligations (note 12) |  |  | 438 |  |  | 1,567 | ​ | ​ | 1,343
​ |  | $ | 21,771 |  | ​ | 1,567 | ​ | ​ | 1,343
Currency risk | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Dec. 31'2024 |  | Sensitivity |  | ​ | ​
​ | ​ | Foreign | ​ | Foreign | ​ | Change in
​ | ​ | Exchange | ​ | Exchange | ​ | net income
(in thousands except foreign exchange rates) | ​ | Rate | ​ | Rate | ​ | (loss)
​ |  |  |  |  |  | ​ |
Currency risk | ​ | ​ | ​ | ​ | ​ | ​ | ​
CAD weakens |  | 1.4389 |  | 1.5828 | ​ | $ | 25,762
CAD strengthens |  | 1.4389 |  | 1.2950 | ​ | $ | (25,762)
Price risk | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Absolute change |  | At December 31,2024 |  | 10% increase |  | 10% decrease
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Equity price of F3 |  | $ | 0.26 | ​ | 0.28 | ​ | 0.23
Convertible debentures fair value (in thousands) | ​ | $ | 13,000 | ​ | 13,300 | ​ | 12,600
Fair value of financial assets and financial liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Financial |  | Fair |  | December 31, |  | December 31,
​ | ​ | Instrument | ​ | Value | ​ | 2024 | ​ | 2023
(in thousands) | ​ | Category(1) | ​ | Hierarchy | ​ | Fair Value | ​ | Fair Value
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Financial Assets: |  |  |  |  |  |  |  |  |  |
Cash and equivalents |  | Category B |  |  |  | $ | 108,518 |  | $ | 131,054
Trade and other receivables |  | Category B |  |  |  |  | 3,075 |  |  | 1,913
Investments |  |  |  |  |  |  |  |  |  |
Equity instruments-shares |  | Category A |  | Level 1 |  |  | 7,767 |  |  | 10,390
Equity instruments-warrants |  | Category A |  | Level 2 |  |  | 280 |  |  | 127
Convertible Debentures | ​ | Category A | ​ | Level 3 | ​ | ​ | 13,000 | ​ | ​ | 15,565
Restricted cash and equivalents |  |  |  |  |  |  |  |  |  |
Elliot Lake reclamation trust fund |  | Category B |  |  |  |  | 3,652 |  |  | 3,259
Credit facility pledged assets |  | Category B |  |  |  |  | 7,972 |  |  | 7,972
​ | ​ | ​ | ​ | ​ |  | $ | 144,264 |  | $ | 170,280
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Financial Liabilities: |  |  |  |  | ​ |  |  | ​ |  |
Account payable and accrued liabilities |  | Category C |  |  | ​ |  | 21,333 | ​ |  | 10,822
Debt obligations |  | Category C |  |  | ​ |  | 2,414 | ​ |  | 417
​ | ​ | ​ | ​ | ​ |  | $ | 23,747 |  | $ | 11,239
| (1) | Financial instrument designations are as follows: Category A=Financial assets and liabilities at fair value through profit and loss; Category B=Financial assets at amortized cost; and Category C=Financial liabilities at amortized cost.
Interest rate risk |
Capital Management And Financial Risk [Line Item] |
Sensitivity analysis | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Absolute change |  | Base |  | 1% increase |  | 1% decrease |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Credit spread |  | ​ | 19 | % | 20 | % | 18 | %
Convertible debentures fair value (in thousands) | ​ | $ | 13,000 |  | 12,800 |  | 13,300 | ​

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | dnn_CapitalManagementAndFinancialRiskLineItem
Namespace Prefix: | dnn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The tabular disclosure of Capital Management. + References No definition available. + Details
Name: | dnn_SummaryOfCapitalManagementTableTextBlock
Namespace Prefix: | dnn_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The tabular disclosure of Credit Risk. + References No definition available. + Details
Name: | dnn_SummaryOfCreditRiskTableTextBlock
Namespace Prefix: | dnn_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The tabular disclosure of Currency Risk. + References No definition available. + Details
Name: | dnn_SummaryOfCurrencyRiskTableTextBlock
Namespace Prefix: | dnn_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The tabular disclosure of Fair value of financial assets and financial liabilities. + References No definition available. + Details
Name: | dnn_SummaryOfFairValueOfFinancialAssetsAndLiabilitiesTableTextBlock
Namespace Prefix: | dnn_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The tabular disclosure of Maturities of financial liabilities. + References No definition available. + Details
Name: | dnn_SummaryOfMaturitiesOfFinancialLiabilitiesTableTextBlock
Namespace Prefix: | dnn_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The tabular disclosure of Price Risk. + References No definition available. + Details
Name: | dnn_SummaryOfPriceRiskTableTextBlock
Namespace Prefix: | dnn_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of the sensitivity analysis for types of market risk to which the entity is exposed, showing how profit or loss and equity would have been affected by changes in the relevant risk variable that were reasonably possible at that date. [Refer: Market risk [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 40 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_40_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_SensitivityAnalysisForEachTypeOfMarketRisk
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=ifrs-full_InterestRateRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |