XML 194 R121.htm IDEA: XBRL DOCUMENT
v3.25.1

Financial instruments and related risk management (Aging of trade receivables) (Details) - CAD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Disclosure of detailed information about financial instruments [line items] |  |
Trade receivables | $ 309,570 | $ 413,792
Corporate customers [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Trade receivables | 305,242 |
Other Customers [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Trade receivables | 4,328 |
Current [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Trade receivables | 308,720 |
Current [Member] | Corporate customers [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Trade receivables | 304,684 |
Current [Member] | Other Customers [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Trade receivables | 4,036 |
1-30 Days Past Due [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Trade receivables | 227 |
1-30 Days Past Due [Member] | Corporate customers [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Trade receivables | 0 |
1-30 Days Past Due [Member] | Other Customers [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Trade receivables | 227 |
More Than 30 Days Past Due [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Trade receivables | 623 |
More Than 30 Days Past Due [Member] | Corporate customers [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Trade receivables | 558 |
More Than 30 Days Past Due [Member] | Other Customers [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Trade receivables | $ 65 |

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- Definition The amount of current trade receivables. [Refer: Trade receivables] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 68 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_68&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 78 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_78_b&doctype=Standard -URIDate 2024-03-27 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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- Details
Name: | ccj_TypeOfCustomerAxis=ccj_CorporateCustomersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ccj_TypeOfCustomerAxis=ccj_OtherCustomersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_PastDueStatusAxis=ifrs-full_CurrentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_PastDueStatusAxis=ccj_LaterThanOneDayAndNotLaterThanThirtyDaysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_PastDueStatusAxis=ccj_LaterThanOneMonthMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |