XML 152 R127.htm IDEA: XBRL DOCUMENT
v3.24.0.1

INTEREST IN OTHER ENTITIES (Details) |  |  |  |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2023 | Oct. 31, 2023 | Oct. 30, 2023 | May 31, 2023 | Nov. 30, 2022 | Sep. 30, 2016 | Dec. 31, 2023 | Dec. 31, 2022
INTEREST IN OTHER ENTITIES |  |  |  |  |  |  |  |
Percentage of mineral property assets |  |  |  |  |  |  | 91.00% |
Waterbury Lake Uranium Corp |  |  |  |  |  |  |  |
INTEREST IN OTHER ENTITIES |  |  |  |  |  |  |  |
Participating Interest |  |  |  |  |  |  | 100.00% |
Place Of Business, Joint Operations |  |  |  |  |  |  | Canada |
Ownership interest, Joint Operations |  |  |  |  |  |  | 60.00% | 60.00%
Waterbury Lake Uranium LP |  |  |  |  |  |  |  |
INTEREST IN OTHER ENTITIES |  |  |  |  |  |  |  |
Participating Interest |  |  |  |  |  |  | 100.00% |
Place Of Business, Joint Operations |  |  |  |  |  |  | Canada |
Ownership interest, Joint Operations | 69.35% |  |  |  |  |  | 69.35% | 67.41%
Voting interest percentage |  |  |  |  |  | 75.00% | 75.00% |
Wheeler River Joint Venture |  |  |  |  |  |  |  |
INTEREST IN OTHER ENTITIES |  |  |  |  |  |  |  |
Participating Interest |  |  |  |  |  |  | 90.00% |
Place Of Business, Key Contractual Arrangements |  |  |  |  |  |  | Canada |
Ownership Interest, in Key Contractual Arrangements |  |  |  |  |  |  | 90.00% | 90.00%
Midwest Joint Venture |  |  |  |  |  |  |  |
INTEREST IN OTHER ENTITIES |  |  |  |  |  |  |  |
Participating Interest |  |  |  |  |  |  | 25.17% |
Place Of Business, Key Contractual Arrangements |  |  |  |  |  |  | Canada |
Ownership Interest, in Key Contractual Arrangements |  |  |  |  |  |  | 25.17% | 25.17%
Mann Lake Joint Venture |  |  |  |  |  |  |  |
INTEREST IN OTHER ENTITIES |  |  |  |  |  |  |  |
Place Of Business, Key Contractual Arrangements |  |  |  |  |  |  | Canada |
Ownership Interest, in Key Contractual Arrangements |  |  |  |  |  |  | 30.00% | 30.00%
Wolly Joint Venture |  |  |  |  |  |  |  |
INTEREST IN OTHER ENTITIES |  |  |  |  |  |  |  |
Participating Interest |  |  |  |  |  |  | 20.77% |
Place Of Business, Key Contractual Arrangements |  |  |  |  |  |  | Canada |
Ownership Interest, in Key Contractual Arrangements |  |  |  |  |  |  | 20.77% | 20.77%
McClean Lake Joint Venture |  |  |  |  |  |  |  |
INTEREST IN OTHER ENTITIES |  |  |  |  |  |  |  |
Participating Interest |  |  |  |  |  |  | 22.50% |
Place Of Business, Key Contractual Arrangements |  |  |  |  |  |  | Canada |
Ownership Interest, in Key Contractual Arrangements |  |  |  |  |  |  | 22.50% | 22.50%
Denison Mines Inc. |  |  |  |  |  |  |  |
INTEREST IN OTHER ENTITIES |  |  |  |  |  |  |  |
Place Of Business, Subsidiaries |  |  |  |  |  |  | Canada |
Ownership interest, Subsidiaries |  |  |  |  |  |  | 100.00% | 100.00%
Denison AB Holdings Corp. |  |  |  |  |  |  |  |
INTEREST IN OTHER ENTITIES |  |  |  |  |  |  |  |
Place Of Business, Subsidiaries |  |  |  |  |  |  | Canada |
Ownership interest, Subsidiaries |  |  |  |  |  |  | 100.00% | 100.00%
Denison Waterbury Corp |  |  |  |  |  |  |  |
INTEREST IN OTHER ENTITIES |  |  |  |  |  |  |  |
Place Of Business, Subsidiaries |  |  |  |  |  |  | Canada |
Ownership interest, Subsidiaries |  |  |  |  |  |  | 100.00% | 100.00%
Ownership interest, Joint Operations |  | 69.35% | 67.41% | 67.41% | 66.90% |  | 60.00% |
9373721 Canada Inc. |  |  |  |  |  |  |  |
INTEREST IN OTHER ENTITIES |  |  |  |  |  |  |  |
Place Of Business, Subsidiaries |  |  |  |  |  |  | Canada |
Ownership interest, Subsidiaries |  |  |  |  |  |  | 100.00% | 100.00%
Denison Mines (Bermuda) I Ltd |  |  |  |  |  |  |  |
INTEREST IN OTHER ENTITIES |  |  |  |  |  |  |  |
Place Of Business, Subsidiaries |  |  |  |  |  |  | Bermuda |
Ownership interest, Subsidiaries |  |  |  |  |  |  | 100.00% | 100.00%
JCU |  |  |  |  |  |  |  |
INTEREST IN OTHER ENTITIES |  |  |  |  |  |  |  |
Participating Interest |  |  |  |  |  |  | 50.00% |
Place Of Business, Joint Operations |  |  |  |  |  |  | Canada |
Ownership interest, Joint Operations |  |  |  |  |  |  | 50.00% | 50.00%
JCU | Wheeler River Joint Venture |  |  |  |  |  |  |  |
INTEREST IN OTHER ENTITIES |  |  |  |  |  |  |  |
Additional Ownership Interest In Joint venture |  |  |  |  |  |  | 5.00% |

X
- Definition It represents the percentage of participating interest. + References No definition available. + Details
Name: | dnn_ParticipatingInterest
Namespace Prefix: | dnn_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of mineral property assets. + References No definition available. + Details
Name: | dnn_PercentageOfMineralPropertyAssets
Namespace Prefix: | dnn_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition It represents the principal place of business key contractual arrangement. + References No definition available. + Details
Name: | dnn_PrincipalPlaceOfBusinessKeyContractualArrangement
Namespace Prefix: | dnn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The proportion of additional ownership interest in a joint operation attributable to the entity. + References No definition available. + Details
Name: | dnn_ProportionOfAdditionalOwnershipInterestInJointOperation
Namespace Prefix: | dnn_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition It represents the percentage of proportion of ownership interest key operations contractual arrangement. + References No definition available. + Details
Name: | dnn_ProportionOfOwnershipInterestKeyContractualArrangements
Namespace Prefix: | dnn_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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: | ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The principal place of business of a joint operation. [Refer: Joint operations [member]; Principal place of business] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 21 -Subparagraph a -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_21_a_iii&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_PrincipalPlaceOfBusinessOfJointOperation
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The principal place of business of a subsidiary. [Refer: Principal place of business; Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2023-01-01 -Paragraph 16 -Subparagraph b -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2023-en-r&anchor=para_16_b_ii&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2023-01-01 -Paragraph 17 -Subparagraph b -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2023-en-r&anchor=para_17_b_ii&doctype=Standard -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 12 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_12_b&doctype=Standard -URIDate 2023-03-23 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 19B -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_19B_b&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_PrincipalPlaceOfBusinessOfSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The proportion of ownership interest in a joint operation attributable to the entity. [Refer: Joint operations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 21 -Subparagraph a -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_21_a_iv&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInJointOperation
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2023-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2023-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2023-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2023-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 19B -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_19B_c&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The proportion of the voting rights in a joint operation held by the entity. [Refer: Joint operations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 21 -Subparagraph a -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_21_a_iv&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_ProportionOfVotingRightsHeldInJointOperation
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_JointOperationsAxis=dnn_WaterburyLakeUraniumCorpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointOperationsAxis=dnn_WaterburyLakeUraniumLPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointOperationsAxis=dnn_WheelerRiverJointProjectMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointOperationsAxis=dnn_MidwestJointVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointOperationsAxis=dnn_MannLakeJointVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointOperationsAxis=dnn_WollyJointVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointOperationsAxis=dnn_McCleanLakeJointVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=dnn_DenisonMinesIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=dnn_DenisonABHoldingsCorpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=dnn_DenisonWaterburyCorpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=dnn_CanadaInc9373721Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=dnn_DenisonMinesBermudaILtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointVenturesAxis=dnn_JCUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |