XML 165 R92.htm IDEA: XBRL DOCUMENT
v3.25.1

Revenue (Disaggregation) (Details) - CAD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Reportable Segments [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | $ 3,135,772 | $ 2,587,758
Uranium [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 2,676,620 | 2,153,153
Fuel Services [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 459,152 | 425,557
Other Segment [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 0 | 9,048
Fixed price Contracts [Member] | Reportable Segments [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 1,204,849 | 1,246,206
Fixed price Contracts [Member] | Uranium [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 791,701 | 822,869
Fixed price Contracts [Member] | Fuel Services [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 413,148 | 414,289
Fixed price Contracts [Member] | Other Segment [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 0 | 9,048
Market Price Contracts Member [Member] | Reportable Segments [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 1,930,923 | 1,341,552
Market Price Contracts Member [Member] | Uranium [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 1,884,919 | 1,330,284
Market Price Contracts Member [Member] | Fuel Services [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 46,004 | 11,268
Market Price Contracts Member [Member] | Other Segment [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 0 | 0
Americas [Member] | Reportable Segments [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 1,736,678 | 1,361,319
Americas [Member] | Uranium [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 1,401,742 | 1,044,386
Americas [Member] | Fuel Services [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 334,936 | 307,885
Americas [Member] | Other Segment [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 0 | 9,048
Europe [Member] | Reportable Segments [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 563,773 | 680,827
Europe [Member] | Uranium [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 488,718 | 592,068
Europe [Member] | Fuel Services [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 75,055 | 88,759
Europe [Member] | Other Segment [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 0 | 0
Asia [Member] | Reportable Segments [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 835,321 | 545,612
Asia [Member] | Uranium [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 786,160 | 516,699
Asia [Member] | Fuel Services [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | 49,161 | 28,913
Asia [Member] | Other Segment [Member] |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [line items] |  |
Revenue From Contracts With Customers | $ 0 | $ 0

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

X
- Definition The amount of revenue from contracts with customers. A customer is a party that has contracted with an entity to obtain goods or services that are an output of the entity’s ordinary activities in exchange for consideration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2024-01-01 -Paragraph 114 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2024-en-r&anchor=para_114&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2024-01-01 -Paragraph 113 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2024-en-r&anchor=para_113_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_RevenueFromContractsWithCustomers
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ifrs-full_SegmentsAxis=ifrs-full_ReportableSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentsAxis=ccj_UraniumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentsAxis=ccj_FuelServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentsAxis=ccj_OtherSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfContractsAxis=ifrs-full_FixedpriceContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfContractsAxis=ccj_MarketpricecontractsmemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=srt_NorthAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=srt_EuropeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=srt_AsiaPacificMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |