XML 110 R115.htm IDEA: XBRL DOCUMENT v3.20.1

Financial instruments - Liquidity Risk Tables (Details) - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Disclosure of maturity analysis for financial liabilities [abstract]
Carrying amount	$ 1,203,910	$ 1,781,812
Contractual cash flows	1,200,136
Total interest payments on long-term debt	266,820
Due in less than one year [Member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	189,934
Total interest payments on long-term debt	41,040
Due in one to three years [Member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	408,196
Total interest payments on long-term debt	82,080
Due in three to five years [Member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	502,006
Total interest payments on long-term debt	52,080
Due after five years [member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	100,000
Total interest payments on long-term debt	91,620
Accounts Payable and Accrued Liabilities [Member]
Disclosure of maturity analysis for financial liabilities [abstract]
Carrying amount	181,799
Contractual cash flows	181,799
Accounts Payable and Accrued Liabilities [Member] | Due in less than one year [Member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	181,799
Accounts Payable and Accrued Liabilities [Member] | Due in one to three years [Member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	0
Accounts Payable and Accrued Liabilities [Member] | Due in three to five years [Member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	0
Accounts Payable and Accrued Liabilities [Member] | Due after five years [member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	0
Long-Term Debt [Member]
Disclosure of maturity analysis for financial liabilities [abstract]
Carrying amount	996,718
Contractual cash flows	1,000,000
Long-Term Debt [Member] | Due in less than one year [Member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	0
Long-Term Debt [Member] | Due in one to three years [Member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	400,000
Long-Term Debt [Member] | Due in three to five years [Member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	500,000
Long-Term Debt [Member] | Due after five years [member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	100,000
Foreign currency contracts [Member]
Disclosure of maturity analysis for financial liabilities [abstract]
Carrying amount	4,333
Contractual cash flows	4,333
Foreign currency contracts [Member] | Due in less than one year [Member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	4,168
Foreign currency contracts [Member] | Due in one to three years [Member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	165
Foreign currency contracts [Member] | Due in three to five years [Member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	0
Foreign currency contracts [Member] | Due after five years [member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	0
Lease obligation
Disclosure of maturity analysis for financial liabilities [abstract]
Carrying amount	12,869
Contractual cash flows	14,004
Lease obligation | Due in less than one year [Member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	3,967
Lease obligation | Due in one to three years [Member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	8,031
Lease obligation | Due in three to five years [Member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	2,006
Lease obligation | Due after five years [member]
Disclosure of maturity analysis for financial liabilities [abstract]
Contractual cash flows	0
Unsecured revolving credit facility [Member]
Disclosure of detailed information about borrowings [line items]
Maximum borrowing capacity	1,000,000
Committed and outstanding	0
Available borrowing facility	1,000,000
Letter of credit facilities [Member]
Disclosure of detailed information about borrowings [line items]
Maximum borrowing capacity	1,719,120
Committed and outstanding	1,528,603
Available borrowing facility	$ 190,517

X

- Definition

The maximum amount of borrowings that can be drawn from the facilities.

+ References

No definition available.

+ Details

Name:	ccj_MaximumBorrowingCapacity
Namespace Prefix:	ccj_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount of outstanding funds that the entity is obligated to repay.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_Borrowings
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

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

X

- Definition

The amount of liabilities that are: (a) a contractual obligation: (i) to deliver cash or another financial asset to another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially unfavourable to the entity; or (b) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to deliver a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose, rights, options or warrants to acquire a fixed number of the entity’s own equity instruments for a fixed amount of any currency are equity instruments if the entity offers the rights, options or warrants pro rata to all of its existing owners of the same class of its own non-derivative equity instruments. Also, for those purposes the entity’s own equity instruments do not include puttable financial instruments that are classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. As an exception, an instrument that meets the definition of a financial liability is classified as an equity instrument if it has all the features and meets the conditions in paragraphs 16A-16B or paragraphs 16C-16D of IAS 32. [Refer: Financial instruments, class [member]; Financial assets; Derivatives [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2019-01-01
-Paragraph 25
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_25&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_FinancialLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount of interest recognised as a liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_InterestPayable
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount of contractual undiscounted cash flows in relation to non-derivative financial liabilities.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2019-01-01
-Paragraph 39
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_39_a&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount of undrawn borrowing facilities that may be available for future operating activities and to settle capital commitments. [Refer: Capital commitments]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2019-01-01
-Paragraph 50
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2019-en-r&anchor=para_50_a&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_UndrawnBorrowingFacilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	ifrs-full_MaturityAxis=ifrs-full_LaterThanThreeMonthsAndNotLaterThanOneYearMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MaturityAxis=ifrs-full_LaterThanThreeYearsAndNotLaterThanFiveYearsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_MaturityAxis=ifrs-full_LaterThanFiveYearsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfFinancialLiabilitiesAxis=ccj_AccountsPayableAndAccruedLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfFinancialLiabilitiesAxis=ccj_LongtermDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfFinancialLiabilitiesAxis=ccj_ForeignCurrencyContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfFinancialLiabilitiesAxis=ifrs-full_LeaseLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=ccj_UnsecuredRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=ccj_LetterOfCreditFacilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: